Team:Gaston Day School

From 2014.igem.org

(Difference between revisions)
Line 62: Line 62:
<!-- slideshow-->
<!-- slideshow-->
 +
<!-- Tabs -->
 +
 +
    var tabLinks = new Array();
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    var contentDivs = new Array();
 +
 +
function init() {
 +
 +
      // Grab the tab links and content divs from the page
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      var tabListItems = document.getElementById('tabs').childNodes;
 +
      for ( var i = 0; i < tabListItems.length; i++ ) {
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        if ( tabListItems[i].nodeName == "LI" ) {
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          var tabLink = getFirstChildWithTagName( tabListItems[i], 'A' );
 +
          var id = getHash( tabLink.getAttribute('href') );
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          tabLinks[id] = tabLink;
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          contentDivs[id] = document.getElementById( id );
 +
        }
 +
      }
 +
 +
      // Assign onclick events to the tab links, and
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      // highlight the first tab
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      var i = 0;
 +
 +
      for ( var id in tabLinks ) {
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        tabLinks[id].onclick = showTab;
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        tabLinks[id].onfocus = function() { this.blur() };
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        if ( i == 0 ) tabLinks[id].className = 'selected';
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        i++;
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      }
 +
 +
      // Hide all content divs except the first
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      var i = 0;
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      for ( var id in contentDivs ) {
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        if ( i != 0 ) contentDivs[id].className = 'tabContent hide';
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        i++;
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      }
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    }
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function showTab() {
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      var selectedId = getHash( this.getAttribute('href') );
 +
 +
      // Highlight the selected tab, and dim all others.
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      // Also show the selected content div, and hide all others.
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      for ( var id in contentDivs ) {
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        if ( id == selectedId ) {
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          tabLinks[id].className = 'selected';
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          contentDivs[id].className = 'tabContent';
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        } else {
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          tabLinks[id].className = '';
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          contentDivs[id].className = 'tabContent hide';
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        }
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      }
 +
 +
      // Stop the browser following the link
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      return false;
 +
    }
 +
 +
function getFirstChildWithTagName( element, tagName ) {
 +
      for ( var i = 0; i < element.childNodes.length; i++ ) {
 +
        if ( element.childNodes[i].nodeName == tagName ) return element.childNodes[i];
 +
      }
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    }
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function getHash( url ) {
 +
      var hashPos = url.lastIndexOf ( '#' );
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      return url.substring( hashPos + 1 );
 +
    }
</script>
</script>
</head>
</head>
-
<body>
+
<body onload="init()">
<!--main content -->
<!--main content -->
<table width="70%" align="center">
<table width="70%" align="center">

Revision as of 14:13, 10 June 2014

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About JavaScript tabs

JavaScript tabs partition your Web page content into tabbed sections. Only one section at a time is visible.

The code is written in such a way that the page degrades gracefully in browsers that don't support JavaScript or CSS.

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