diff --git a/abmelden.php b/abmelden.php
index 77159c3..da06b19 100644
--- a/abmelden.php
+++ b/abmelden.php
@@ -80,17 +80,7 @@
         <!--Link JS file-->
         <script src="burgerIcon.js"></script>
        
-        <script>
-            var widthissue = false;
-      window.addEventListener("resize", function(event) {
-        if(window.innerWidth > 800 && widthissue) {
-            widthissue = false
-            unset()
-        } 
-        else if(window.innerWidth < 800) widthissue = true;
-        })
-        
-        </script>
+        <script src="resize.js"></script>
 
         <nav id="activeid" class="active"></nav>
 
@@ -133,17 +123,7 @@
             <!--Link JS file-->
             <script src="burgerIcon.js"></script>
            
-            <script>
-                var widthissue = false;
-          window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-            })
-            
-            </script>
+            <script src="resize.js"></script>
     
             <nav id="activeid" class="active"></nav>
     
diff --git a/abmelden_erfolgreich.php b/abmelden_erfolgreich.php
index ddf46df..773dde0 100644
--- a/abmelden_erfolgreich.php
+++ b/abmelden_erfolgreich.php
@@ -16,7 +16,7 @@
     <h1 class="kopf" >
         <br><br>
         Bibliothek
-        <a href="index.html" id="bildID">
+        <a href="index.php" id="bildID">
             <img id="CandleID" src="pictures/candle.png"
                  alt="Bild von einer Kerze" width="200" height="192"/></a>
         <br><br>
@@ -81,17 +81,7 @@ session_destroy();
     <!--Link JS file-->
     <script src="burgerIcon.js"></script>
     
-    <script>
-        var widthissue = false;
-  window.addEventListener("resize", function(event) {
-    if(window.innerWidth > 800 && widthissue) {
-        widthissue = false
-        unset()
-    } 
-    else if(window.innerWidth < 800) widthissue = true;
-    })
-    
-    </script>
+    <script src="resize.js"></script>
 
     <nav id="activeid" class="active"></nav>
 
diff --git a/anmelden.php b/anmelden.php
index 3faca0a..b0fdafd 100644
--- a/anmelden.php
+++ b/anmelden.php
@@ -17,7 +17,7 @@
     <h1 class="kopf" >
         <br><br>
         Bibliothek
-        <a href="index.html" id="bildID">
+        <a href="index.php" id="bildID">
             <img id="CandleID" src="pictures/candle.png"
                  alt="Bild von einer Kerze" width="200" height="192"/></a>
         <br><br>
@@ -105,16 +105,7 @@
                 </div>
         
                
-                <script>
-                    var widthissue = false;
-                    window.addEventListener("resize", function(event) {
-                        if(window.innerWidth > 800 && widthissue) {
-                            widthissue = false
-                            unset()
-                        }
-                        else if(window.innerWidth < 800) widthissue = true;
-                    })
-                </script>
+                <script src="resize.js"></script>
         
                 <nav id="activeid" class="active"></nav>
         
diff --git a/anmelden_meinebuecher.php b/anmelden_meinebuecher.php
index 8d75aed..5360924 100644
--- a/anmelden_meinebuecher.php
+++ b/anmelden_meinebuecher.php
@@ -17,7 +17,7 @@
     <h1 class="kopf" >
         <br><br>
         Bibliothek
-        <a href="index.html" id="bildID">
+        <a href="index.php" id="bildID">
             <img id="CandleID" src="pictures/candle.png"
                  alt="Bild von einer Kerze" width="200" height="192"/></a>
         <br><br>
@@ -105,16 +105,7 @@
             
                     </div>
             
-                    <script>
-                        var widthissue = false;
-                        window.addEventListener("resize", function(event) {
-                            if(window.innerWidth > 800 && widthissue) {
-                                widthissue = false
-                                unset()
-                            }
-                            else if(window.innerWidth < 800) widthissue = true;
-                        })
-                    </script>
+                    <script src="resize.js"></script>
             
                     <nav id="activeid" class="active"></nav>
             
diff --git a/benutzer_existiert_nicht.php b/benutzer_existiert_nicht.php
index 2fb2f6c..3712909 100644
--- a/benutzer_existiert_nicht.php
+++ b/benutzer_existiert_nicht.php
@@ -60,14 +60,8 @@
                             
                             Sie haben sich noch nicht registriert!
                         </p>    
-                        <input type="button" id="loginNowButton" value="jetzt Registrieren"
-                        onclick="linkToRegisterPage()">
-        
-                        <script>
-                            function linkToRegisterPage() {
-                                window.location.replace("registrierung.php");
-                            }
-                        </script>
+                        <a type="button" id="loginNowButton" href="registrierung.php"> Jetzt Registrieren </a>
+
                         <br><br><br>
                     </div>  
                 </div>
@@ -76,17 +70,7 @@
         
                 <!--Link JS file-->
                 <script src="burgerIcon.js"></script>
-                <script>
-                    var widthissue = false;
-              window.addEventListener("resize", function(event) {
-                if(window.innerWidth > 800 && widthissue) {
-                    widthissue = false
-                    unset()
-                } 
-                else if(window.innerWidth < 800) widthissue = true;
-                })
-                
-                </script>
+            <script src="resize.js"></script>
 
             <nav id="activeid" class="active"></nav>
 
diff --git a/benutzer_schon_existiert.php b/benutzer_schon_existiert.php
index 5bd39c4..68eff46 100644
--- a/benutzer_schon_existiert.php
+++ b/benutzer_schon_existiert.php
@@ -59,15 +59,8 @@
                         <p id="textFirstHalf">
                             
                             Benutzer schon vorhanden!
-                        </p>    
-                        <input type="button" id="loginNowButton" value="anmelden"
-                        onclick="linkToRegisterPage()">
-        
-                        <script>
-                            function linkToRegisterPage() {
-                                window.location.replace("anmelden.php");
-                            }
-                        </script>
+                        </p>
+                        <a type="button" id="loginNowButton" href="anmelden.php"> Anmelden </a>
                         <br><br><br>
                     </div>  
                 </div>
@@ -76,17 +69,7 @@
         
                 <!--Link JS file-->
                 <script src="burgerIcon.js"></script>
-                <script>
-                    var widthissue = false;
-              window.addEventListener("resize", function(event) {
-                if(window.innerWidth > 800 && widthissue) {
-                    widthissue = false
-                    unset()
-                } 
-                else if(window.innerWidth < 800) widthissue = true;
-                })
-                
-                </script>
+            <script src="resize.js"></script>
 
             <nav id="activeid" class="active"></nav>
 
diff --git a/buch_details.php b/buch_details.php
index 8f2b722..86c9d3d 100644
--- a/buch_details.php
+++ b/buch_details.php
@@ -143,9 +143,9 @@
                                 <div class='available_container'>
                                     <p id='available_$bookID' class='available'>
                                         $bookAvailability</p>
-                                    <!--TODO: Auslagern-->
+                                    <!--TODO: Auslagern - Geht nicht - JS was PHP informationen braucht-->
                                     <script type='text/javascript' 
-                                        language='JavaScript'>
+                                        type='JavaScript'>
                                         (function() {
                                             var currentElement = document.
                                                 getElementById
@@ -233,16 +233,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/buecher.php b/buecher.php
index daab82a..76f5fa7 100644
--- a/buecher.php
+++ b/buecher.php
@@ -132,7 +132,7 @@
                                     $bookAvailability</p>
                                     <!--TODO: Auslagern-->
                                     <script type='text/javascript' 
-                                    language='JavaScript'>
+                                    type='JavaScript'>
                                         (function() {
                                             var currentElement = document.
                                             getElementById('available_$bookID');
@@ -210,17 +210,7 @@
    
            <!--Link JS file-->
            <script src="burgerIcon.js"></script>
-           <script>
-               var widthissue = false;
-         window.addEventListener("resize", function(event) {
-           if(window.innerWidth > 800 && widthissue) {
-               widthissue = false
-               unset()
-           } 
-           else if(window.innerWidth < 800) widthissue = true;
-   })
-           
-           </script>
+       <script src="resize.js"></script>
    <!--Burger-->
        <nav id="activeid" class="active"></nav>
 
diff --git a/datenschutz.php b/datenschutz.php
index ddde10c..43c00c3 100644
--- a/datenschutz.php
+++ b/datenschutz.php
@@ -172,16 +172,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/erweitertesuche.php b/erweitertesuche.php
index d34f7c9..368d21e 100644
--- a/erweitertesuche.php
+++ b/erweitertesuche.php
@@ -119,16 +119,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+        <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/impressum.php b/impressum.php
index 2f26b2b..c1f5fe1 100644
--- a/impressum.php
+++ b/impressum.php
@@ -76,16 +76,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/index.php b/index.php
index fac49eb..2beaeae 100644
--- a/index.php
+++ b/index.php
@@ -90,16 +90,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/kontakt.php b/kontakt.php
index 34f82fd..f99d91a 100644
--- a/kontakt.php
+++ b/kontakt.php
@@ -69,16 +69,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/loeschen_erfolgreich_meine_buecher.php b/loeschen_erfolgreich_meine_buecher.php
index 1704e7e..7e2adcf 100644
--- a/loeschen_erfolgreich_meine_buecher.php
+++ b/loeschen_erfolgreich_meine_buecher.php
@@ -68,17 +68,7 @@
 
 <!--Link JS file-->
 <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-<script>
-    var widthissue = false;
-    window.addEventListener("resize", function(event) {
-        if(window.innerWidth > 800 && widthissue) {
-            widthissue = false
-            unset()
-        }
-        else if(window.innerWidth < 800) widthissue = true;
-    })
-
-</script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/loeschen_erfolgreich_warenkorb.php b/loeschen_erfolgreich_warenkorb.php
index 0154b8d..31cf01c 100644
--- a/loeschen_erfolgreich_warenkorb.php
+++ b/loeschen_erfolgreich_warenkorb.php
@@ -68,17 +68,7 @@
 
 <!--Link JS file-->
 <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-<script>
-  var widthissue = false;
-  window.addEventListener("resize", function(event) {
-    if(window.innerWidth > 800 && widthissue) {
-      widthissue = false
-      unset()
-    }
-    else if(window.innerWidth < 800) widthissue = true;
-  })
-
-</script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/loeschen_meine_buecher.php b/loeschen_meine_buecher.php
index 60bd174..0a2f958 100644
--- a/loeschen_meine_buecher.php
+++ b/loeschen_meine_buecher.php
@@ -78,17 +78,7 @@
 
 <!--Link JS file-->
 <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-<script>
-  var widthissue = false;
-  window.addEventListener("resize", function(event) {
-    if(window.innerWidth > 800 && widthissue) {
-      widthissue = false
-      unset()
-    }
-    else if(window.innerWidth < 800) widthissue = true;
-  })
-
-</script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/loeschen_warenkorb.php b/loeschen_warenkorb.php
index 9dbe4e6..2829574 100644
--- a/loeschen_warenkorb.php
+++ b/loeschen_warenkorb.php
@@ -78,17 +78,7 @@
 
 <!--Link JS file-->
 <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-<script>
-    var widthissue = false;
-    window.addEventListener("resize", function(event) {
-        if(window.innerWidth > 800 && widthissue) {
-            widthissue = false
-            unset()
-        }
-        else if(window.innerWidth < 800) widthissue = true;
-    })
-
-</script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/meinebuecher.php b/meinebuecher.php
index 3a410f7..4750631 100644
--- a/meinebuecher.php
+++ b/meinebuecher.php
@@ -17,7 +17,7 @@
     <h1 class="kopf" >
         <br><br>
         Bibliothek
-        <a href="index.html" id="bildID">
+        <a href="index.php" id="bildID">
             <img id="CandleID" src="pictures/candle.png"
                  alt="Bild von einer Kerze" width="200" height="192"/></a>
         <br><br>
@@ -81,53 +81,71 @@ if(isset($_POST['submit'])){
                 <h1 id="searchResult_heading">Meine Bücher</h1>
                 <div id="searchResult_container">';
 
-        $sql = "SELECT b.BuchID, b.Titel, b.Bild,
+        $sql = $db_link->prepare(
+            "SELECT ab.AusleihID, ab.BuchID, b.Titel, b.Bild, ab.Verlängerbar, DATE_FORMAT(ab.Anfangsdatum, '%d.%m.%Y') as Anfangsdatum, DATE_FORMAT(ab.Enddatum, '%d.%m.%Y') as Enddatum,
             GROUP_CONCAT(DISTINCT CONCAT(a.VorName, ' ', a.NachName) 
             SEPARATOR ', ') AS 'Autor',
-            IF(b.Anzahl!=0, 'Verfügbar', CONCAT('Verfügbar ab: ', 
-            (SELECT DATE_FORMAT(DATE_ADD(ab.Enddatum, INTERVAL 1 DAY)
-            ,'%d.%m.%Y') FROM `ausgeliehenes_buch` AS ab  
-            WHERE ab.BuchID = b.BuchID
-            ORDER BY ab.Reserviert ASC, ab.Enddatum  ASC LIMIT 1))) 
-            AS 'Verfügbarkeit' FROM `buch` AS b
+            IF(
+                (SELECT ausgeliehenes_buch.Anfangsdatum FROM ausgeliehenes_buch WHERE ausgeliehenes_buch.AusleihID=ab.AusleihID) = Curdate(), 'Sofort Abholbereit', 
+                    (
+                        IF(
+                        (SELECT ausgeliehenes_buch.Anfangsdatum FROM ausgeliehenes_buch WHERE ausgeliehenes_buch.AusleihID=ab.AusleihID) > Curdate(), 
+                            CONCAT(
+                                'Abholbereit am: ', (
+                                    SELECT DATE_FORMAT(
+                                        ausgeliehenes_buch.Anfangsdatum , '%d.%m.%Y'
+                                        ) FROM ausgeliehenes_buch WHERE ausgeliehenes_buch.AusleihID=ab.AusleihID
+                                    )
+                                )
+                            , CONCAT(
+                                'Rückgabe am: ', (
+                                    SELECT DATE_FORMAT(
+                                        ausgeliehenes_buch.Enddatum , '%d.%m.%Y'
+                                        ) FROM ausgeliehenes_buch WHERE ausgeliehenes_buch.AusleihID=ab.AusleihID
+                                    )
+                                ))
+                    )
+               ) 
+            AS 'Verfügbarkeit'
+            FROM ausgeliehenes_buch AS ab 
+            INNER JOIN buch as b
+            ON ab.BuchID = b.BuchID
             INNER JOIN `buch_verfasst_von_autor` AS bvva 
             ON b.BuchID = bvva.BuchID
-            INNER JOIN `autor` AS a ON bvva.AutorNr = a.AutorNr
-            INNER JOIN `buch_hat_kategorie` AS bhk ON bhk.BuchID = b.BuchID
-            INNER JOIN `kategorie` AS k ON k.KategorieID = bhk.KategorieID
-            INNER JOIN `sprache` AS sp ON sp.SprachenID = b.SprachenID
-            INNER JOIN `buch_hat_stichwort` AS bhs ON bhs.BuchID = b.BuchID
-            INNER JOIN `stichwort` AS st ON st.StichwortID = bhs.StichwortID
-            GROUP BY b.BuchID
-            ;";
+            INNER JOIN `autor` AS a ON bvva.AutorNr = a.AutorNr 
+            WHERE ab.BenutzerID=?
+            GROUP BY ab.AusleihID;");
 
-        $servername = "localhost";
-        $username = "web_b-3";
-        $password = "een7Ao6s";
-        $dbname = "bibliothek_candle";
-
-        $connection = mysqli_connect($servername, $username, $password, $dbname);
+        $sql->bind_param("i", $BenutzerID);
+        $BenutzerID = 5;
+        $sql->execute();
+        $result = $sql->get_result();
+        $connection = $db_link;
 
         if (!$connection) {
             die("Verbindung fehlgeschlagen: " . mysqli_connect_error());
         }
 
-        $result = mysqli_query($connection, $sql);
-
         $counter = 0;
         if (mysqli_num_rows($result) > 0) {
             while($row = mysqli_fetch_assoc($result)) {
                 $bookID = $row['BuchID'];
+                $ausleihID = $row['AusleihID'];
                 $bookCover = $row['Bild'];
                 $bookTitle = $row['Titel'];
                 $bookAuthor = $row['Autor'];
                 $bookAvailability = $row['Verfügbarkeit'];
+                $bookExtendable = $row['Verlängerbar'];
+                $bookStartdate = $row['Anfangsdatum'];
+                $bookEnddate = $row['Enddatum'];
+
+                $bookStartdatePlusSeven = $bookStartdate +7;
 
                 if ($counter != 0) {
                     echo "<div class='divider'></div>";
                 }
                 // TODO: OnClick auslagern.
-                echo "<div id='book_container$bookID' class='book_container' 
+                echo "<div id='book_container$bookID+$ausleihID' class='book_container' 
                                 onclick='open_bookDetails(this.id)'>
                                 <div class='bookCover_container'>
                                     <img class='bookCover' src='book_covers/$bookCover'
@@ -140,39 +158,48 @@ if(isset($_POST['submit'])){
                                         
                                     </div>
                                     <div class='available_container'>
-                                        <p id='available_$bookID' class='available'>
-                                        $bookAvailability</p>
-                                        <!--TODO: Auslagern-->
-                                        <script type='text/javascript' 
+                                        <p id='available_$ausleihID' class='available'>
+                                        $bookAvailability</p> 
+                                    </div>
+                                    <div>
+                                        <p id='bestellungsInfo$ausleihID'></p>                                   
+                                    </div>
+                                    
+                                </div>
+                                <div class='shoppingCart_container'>
+                                   <div class='shoppingCart' id='shoppingCart$ausleihID'></div>
+                                </div>
+                                <script type='text/javascript' 
                                         language='JavaScript'>
                                             (function() {
                                                 var currentElement = document.
-                                                getElementById('available_$bookID');
-                                                var parentDiv = 
-                                                    currentElement.parentElement;
-                                                if (currentElement.innerHTML.trim() 
-                                                    == 'Verfügbar') {
+                                                getElementById('available_$ausleihID');
+                                                var parentDiv = currentElement.parentElement;
+                                                // Sofort Abholbereit
+                                                if (currentElement.innerHTML.trim() === 'Sofort Abholbereit') {
                                                     parentDiv.style.backgroundColor 
                                                     = '#70AD47';
+                                                    document.getElementById('bestellungsInfo$ausleihID').innerHTML = 'Diese Reservierung verfällt, wenn das Buch nicht bis zum $bookStartdatePlusSeven abgeholt wurde.';
+                                                    document.getElementById('shoppingCart$ausleihID').style.backgroundImage = url('pictures/bin.png')
                                                 }
-                                                else {
+                                                // Ausgeliehen und Verlängerbar
+                                                else if (currentElement.innerHTML.trim().includes('Rückgabe') && $bookExtendable === 1){
+                                                    parentDiv.style.backgroundColor 
+                                                    = '#70AD47';
+                                                } 
+                                                // Ausgeliehen und nicht Verlängerbar
+                                                else if (currentElement.innerHTML.trim().includes('Rückgabe') && $bookExtendable === 0){
                                                     parentDiv.style.backgroundColor 
                                                     = '#F34343';
+                                                } else 
+                                                // Noch nicht Ausgeliehen
+                                                {
+                                                    parentDiv.style.backgroundColor 
+                                                    = '#F34343';
+                                                    document.getElementById('bestellungsInfo$ausleihID').innerHTML = 'Dieses Buch ist für sie Reserviert.';
                                                 }
                                             })();
                                         </script>
-                                    </div>
-                                    <div>
-                                        <script>
-
-                                        </script>
-                                        <p>Helloooo</p>
-                                    
-                                    </div>
-                                </div>
-                                <div class='shoppingCart_container'>
-                                    <div class='shoppingCart'></div>
-                                </div>
                             </div>";
                 $counter++;
             }
@@ -205,6 +232,7 @@ if(isset($_POST['submit'])){
 <script>
     function open_bookDetails(ID) {
         var data = new URLSearchParams();
+        ID = ID.substr(0, ID.lastIndexOf('+'));
         data.append("bookID", ID);
 
         var url = "http://141.19.142.11/buch_details.php?" +
@@ -215,17 +243,7 @@ if(isset($_POST['submit'])){
 
 <!--Link JS file-->
 <script src="burgerIcon.js"></script>
-<script>
-    var widthissue = false;
-    window.addEventListener("resize", function(event) {
-        if(window.innerWidth > 800 && widthissue) {
-            widthissue = false
-            unset()
-        }
-        else if(window.innerWidth < 800) widthissue = true;
-    })
-
-</script>
+<script src="resize.js"></script>
 <!--Burger-->
 <nav id="activeid" class="active"></nav>
 
diff --git a/passwort_stimmt_nicht.php b/passwort_stimmt_nicht.php
index 7b5ec02..6956d26 100644
--- a/passwort_stimmt_nicht.php
+++ b/passwort_stimmt_nicht.php
@@ -59,15 +59,8 @@
                         <p id="textFirstHalf">
                             
                             Das Passwort ist falsch!
-                        </p>    
-                        <input type="button" id="loginNowButton" value="erneut versuchen"
-                        onclick="linkToRegisterPage()">
-        
-                        <script>
-                            function linkToRegisterPage() {
-                                window.location.replace("anmelden.php");
-                            }
-                        </script>
+                        </p>
+                        <a type="button" id="loginNowButton" href="anmelden.php"> Erneut Versuchen </a>
                         <br><br><br>
                     </div>  
                 </div>
@@ -76,17 +69,7 @@
         
                 <!--Link JS file-->
                 <script src="burgerIcon.js"></script>
-                <script>
-                    var widthissue = false;
-              window.addEventListener("resize", function(event) {
-                if(window.innerWidth > 800 && widthissue) {
-                    widthissue = false
-                    unset()
-                } 
-                else if(window.innerWidth < 800) widthissue = true;
-                })
-                
-                </script>
+            <script src="resize.js"></script>
 
             <nav id="activeid" class="active"></nav>
 
diff --git a/registriersystem.php b/registriersystem.php
index 8fcfd47..dd32ccd 100644
--- a/registriersystem.php
+++ b/registriersystem.php
@@ -16,7 +16,7 @@
     <h1 class="kopf" >
         <br><br>
         Bibliothek
-        <a href="index.html" id="bildID">
+        <a href="index.php" id="bildID">
             <img id="CandleID" src="pictures/candle.png"
                  alt="Bild von einer Kerze" width="200" height="192"/></a>
         <br><br>
@@ -151,18 +151,7 @@ function register($vorname,
                                             gültigen Ausweises, keine Bücher abgeholt werden können.
                                             </p>
                                             <br>
-                                        <!--TODO: Event für den Button befindet sich momentan
-                                            noch hier in der Datei. Soll die Funktion in eine
-                                            andere Datei verschoben werden, da sich eigentlich keine
-                                            EventListener in der HTML-Datei befinden sollen?-->
-                                        <input type="button" id="loginNowButton" value="Jetzt anmelden"
-                                        onclick="linkToLoginPage()">
-                        
-                                        <script>
-                                            function linkToLoginPage() {
-                                                window.location.replace("anmelden_meinebuecher.php");
-                                            }
-                                        </script>
+                                        <a type="button" id="loginNowButton" href="anmelden_meinebuecher.php"> Jetzt anmelden </a>
                         
                                         <br><br><br>
                                     </div>  
@@ -172,17 +161,7 @@ function register($vorname,
                         
                                 <!--Link JS file-->
                                 <script src="burgerIcon.js"></script>
-                                <script>
-                                    var widthissue = false;
-                            window.addEventListener("resize", function(event) {
-                                if(window.innerWidth > 800 && widthissue) {
-                                    widthissue = false
-                                    unset()
-                                } 
-                                else if(window.innerWidth < 800) widthissue = true;
-                                })
-                                
-                                </script>
+                                <script src="resize.js"></script>
                         
                                 <nav id="activeid" class="active"></nav>
                         
diff --git a/registrierung.php b/registrierung.php
index d0820ea..2daf8ae 100644
--- a/registrierung.php
+++ b/registrierung.php
@@ -14,7 +14,7 @@
         <h1 class="kopf" >
             <br><br>
             Bibliothek
-            <a href="index.html" id="bildID">
+            <a href="index.php" id="bildID">
                 <img id="CandleID" src="pictures/candle.png"
                      alt="Bild von einer Kerze" width="200" height="192"/></a>
             <br><br>
@@ -152,17 +152,7 @@ session_start();
                     <!--Link JS file-->
                     <script src="burgerIcon.js"></script>
                     
-                    <script>
-                        var widthissue = false;
-                  window.addEventListener("resize", function(event) {
-                    if(window.innerWidth > 800 && widthissue) {
-                        widthissue = false
-                        unset()
-                    } 
-                    else if(window.innerWidth < 800) widthissue = true;
-            })
-                    
-                    </script>
+                    <script src="resize.js"></script>
             
                     <nav id="activeid" class="active"></nav>
             
diff --git a/registrierung_wiederholen.php b/registrierung_wiederholen.php
index b33f9cd..2c95cdb 100644
--- a/registrierung_wiederholen.php
+++ b/registrierung_wiederholen.php
@@ -60,14 +60,7 @@
                             
                             Füllen Sie bitte alle Felder aus.
                         </p>    
-                        <input type="button" id="loginNowButton" value="Erneut Versuchen"
-                        onclick="linkToRegisterPage()">
-        
-                        <script>
-                            function linkToRegisterPage() {
-                                window.location.replace("registrierung.php");
-                            }
-                        </script>
+                        <a type="button" id="loginNowButton" href="registrierung.php"> Erneut Versuchen </a>
                         <br><br><br>
                     </div>  
                 </div>
@@ -76,17 +69,7 @@
         
                 <!--Link JS file-->
                 <script src="burgerIcon.js"></script>
-                <script>
-                    var widthissue = false;
-              window.addEventListener("resize", function(event) {
-                if(window.innerWidth > 800 && widthissue) {
-                    widthissue = false
-                    unset()
-                } 
-                else if(window.innerWidth < 800) widthissue = true;
-                })
-                
-                </script>
+            <script src="resize.js"></script>
 
             <nav id="activeid" class="active"></nav>
 
diff --git a/reservierung.php b/reservierung.php
index 73a6778..e42dd15 100644
--- a/reservierung.php
+++ b/reservierung.php
@@ -21,7 +21,7 @@ TODO (optional):
         <h1 class="kopf" >
             <br><br>
             Bibliothek
-            <a href="index.html" id="bildID">
+            <a href="index.php" id="bildID">
                 <img id="CandleID" src="pictures/candle.png"
                      alt="Bild von einer Kerze" width="200" height="192"/></a>
             <br><br>
@@ -232,16 +232,7 @@ TODO (optional):
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/reservierung_bestaetigung.php b/reservierung_bestaetigung.php
index f146531..1954567 100644
--- a/reservierung_bestaetigung.php
+++ b/reservierung_bestaetigung.php
@@ -338,17 +338,7 @@ TODO:
 
     <!--Link JS file-->
     <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            }
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-
-    </script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/reservierung_original.php b/reservierung_original.php
index 627f1bd..98b964d 100644
--- a/reservierung_original.php
+++ b/reservierung_original.php
@@ -105,17 +105,7 @@
 
     <!--Link JS file-->
     <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            }
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-
-    </script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/resize.js b/resize.js
new file mode 100644
index 0000000..9e61c1b
--- /dev/null
+++ b/resize.js
@@ -0,0 +1,8 @@
+var widthissue = false;
+window.addEventListener("resize", function(event) {
+    if(window.innerWidth > 800 && widthissue) {
+        widthissue = false
+        unset()
+    }
+    else if(window.innerWidth < 800) widthissue = true;
+})
\ No newline at end of file
diff --git a/style.css b/style.css
index 6990f16..dc18129 100644
--- a/style.css
+++ b/style.css
@@ -1241,6 +1241,7 @@ input[type=number] {
   border-radius: 8px;
   border: none;
   cursor: pointer;
+  text-decoration: none;
 }
 
 /*----- Registrierung erfolgreich Ende -----*/
diff --git a/suchergebnisse.php b/suchergebnisse.php
index ba99a05..6330bee 100644
--- a/suchergebnisse.php
+++ b/suchergebnisse.php
@@ -16,7 +16,7 @@
         <h1 class="kopf" >
             <br><br>
             Bibliothek
-            <a href="index.html" id="bildID">
+            <a href="index.php" id="bildID">
                 <img id="CandleID" src="pictures/candle.png"
                      alt="Bild von einer Kerze" width="200" height="192"/></a>
             <br><br>
@@ -329,16 +329,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/uberuns.php b/uberuns.php
index 35d1286..59bb4f2 100644
--- a/uberuns.php
+++ b/uberuns.php
@@ -85,16 +85,7 @@
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/verlaengerung.php b/verlaengerung.php
index ffed65d..283cfee 100644
--- a/verlaengerung.php
+++ b/verlaengerung.php
@@ -78,17 +78,7 @@
 
     <!--Link JS file-->
     <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            }
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-
-    </script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/verlaengerung_erfolgreich.php b/verlaengerung_erfolgreich.php
index 5d5bc43..c246de5 100644
--- a/verlaengerung_erfolgreich.php
+++ b/verlaengerung_erfolgreich.php
@@ -78,17 +78,7 @@
 
 <!--Link JS file-->
 <!--If it was small and got big, it calls the function only one time and doesn't do it all the time-->
-<script>
-    var widthissue = false;
-    window.addEventListener("resize", function(event) {
-        if(window.innerWidth > 800 && widthissue) {
-            widthissue = false
-            unset()
-        }
-        else if(window.innerWidth < 800) widthissue = true;
-    })
-
-</script>
+<script src="resize.js"></script>
 
 <nav id="activeid" class="active"></nav>
 
diff --git a/warenkorb.php b/warenkorb.php
index 4bbe8cb..24114c5 100644
--- a/warenkorb.php
+++ b/warenkorb.php
@@ -28,7 +28,7 @@ TODO (optional, geringe Priorität):
         <h1 class="kopf" >
             <br><br>
             Bibliothek
-            <a href="index.html" id="bildID">
+            <a href="index.php" id="bildID">
                 <img id="CandleID" src="pictures/candle.png"
                      alt="Bild von einer Kerze" width="200" height="192"/></a>
             <br><br>
@@ -365,16 +365,7 @@ TODO (optional, geringe Priorität):
     <script src="burgerIcon.js"></script>
     <!--If it was small and got big, 
         it calls the function only one time and doesn't do it all the time-->
-    <script>
-        var widthissue = false;
-        window.addEventListener("resize", function(event) {
-            if(window.innerWidth > 800 && widthissue) {
-                widthissue = false
-                unset()
-            } 
-            else if(window.innerWidth < 800) widthissue = true;
-        })
-    </script>
+    <script src="resize.js"></script>
    
     <nav id="activeid" class="active"></nav>
    
diff --git a/warenkorb_original.php b/warenkorb_original.php
index 6e61113..5eef78b 100644
--- a/warenkorb_original.php
+++ b/warenkorb_original.php
@@ -16,7 +16,7 @@
     <h1 class="kopf" >
         <br><br>
         Bibliothek
-        <a href="index.html" id="bildID">
+        <a href="index.php" id="bildID">
             <img id="CandleID" src="pictures/candle.png"
                  alt="Bild von einer Kerze" width="200" height="192"/></a>
         <br><br>
@@ -100,17 +100,7 @@ $db_link = mysqli_connect('localhost', 'web_b-3', 'een7Ao6s', 'bibliothek_candle
                    </div>
                </div>
           
-           <script>
-               var widthissue = false;
-           window.addEventListener("resize", function(event) {
-           if(window.innerWidth > 800 && widthissue) {
-               widthissue = false
-               unset()
-           } 
-           else if(window.innerWidth < 800) widthissue = true;
-           })
-           
-           </script>
+           <script src="resize.js"></script>
    
            <nav id="activeid" class="active"></nav>