function openNav() {
    var showNav = `
    #CandleID{
        opacity: 0;
        pointer-events: none;
    }
    #uberuns{
        pointer-events: auto;
        opacity: 1;
      }
      #buecher{
        pointer-events: auto;
        opacity: 1;
      }
      #meinebuecher{
        pointer-events: auto;
        opacity: 1;
      }
    
      #nav-toggle {
        opacity: 1;
        pointer-events: auto;
      }
      .suchleiste{
        opacity: 1;
        pointer-events: auto;
      }
      #buttonID{
        opacity: 1;
        pointer-events: auto;
      }

      .suchleiste{
        position: fixed;
        right: 280px;
        top: 0px;
      }
      #buttonID{
        position: fixed;
        right: 240px;
        top: 0px;
      }
      #uberuns{
        position: fixed;
        left: 340px;
        top: 43px;
      }
      #buecher{
        position: fixed;
        left: 340px;
        top: 96px;
      }

      #meinebuecher{
        position: fixed;
        left: 340px;
        top: 150px;
      }


    `;
    var closeNav =  `#CandleID{
        opacity: 1;
        pointer-events: auto;
    }
    `;
    if (document.getElementById('nav-toggle').checked) {
		var styleSheet = document.createElement("style")
		styleSheet.innerText = showNav
		document.head.appendChild(styleSheet)
    } else {
        var link = document.createElement('link');
 
        // set the attributes for link element
           link.rel = 'stylesheet';
     
        link.type = 'text/css';
     
        link.href = 'style.css';
 
        // Get HTML head element to append
        // link element to it
        document.getElementsByTagName('HEAD')[0].appendChild(link);
        var styleSheet = document.createElement("style")
		styleSheet.innerText = closeNav
		document.head.appendChild(styleSheet)
    }
}

function unset()
{
    var link = document.createElement('link');
 
    // set the attributes for link element
       link.rel = 'stylesheet';
 
    link.type = 'text/css';
 
    link.href = 'style.css';

    // Get HTML head element to append
    // link element to it
    document.getElementsByTagName('HEAD')[0].appendChild(link);
    var styleSheet = document.createElement("style")
    styleSheet.innerText = closeNav
    document.head.appendChild(styleSheet)
}