<!--
// Javascript by Laurentian University WebLab.
//  www.weblab.cs.laurentian.ca

//ID browser
//check for navigator

   var browserName
   var browserVersion

   var countDown = new Number()
   countDown = 0;

   var layerWait = new Number()
   layerWait = 4000;

   var ns4up = (document.layers) ? 1 : 0;
   var ie4up = (document.all) ? 1 : 0;
   var ns6up = (document.getElementById&&!document.all) ? 1 : 0;


   // preloaded images for menu bar
   //off images for top menu
   // On images
   menuBackground = new Image();
   menuBackground.src = "images/menubar/background.gif";


   function random(x, y)
   {
      if (x == y) return x;
      var n = Math.floor( x + Math.random() * y);
      return n;
   }

   function hideLayer(name)
   {
      var layer = getLayer(name);
      if (ns4up)
      {
         layer.visibility = "hide";
      }
      else if (ie4up || ns6up)
      {
         layer.visibility = "hidden";
      }
   }

   function getLayer(name)
   {
      // Returns a handle to the named layer.
      if (ns4up)
      {
         return(document.layers[name]);
   	}
      else if (ie4up)
      {
         layer = eval('document.all.' + name + '.style');
         return(layer);
   	}
      else if (ns6up)
      {
         layer = eval('document.getElementById("'+name+'").style')
         return(layer);
   	}
      else
      {
         return(null);
      }
   }

   function showLayer(name)
   {
      var layer = getLayer(name);
      if (ns4up)
      {
         layer.visibility = "show";
      }
      else if (ie4up || ns6up)
      {
         layer.visibility = "visible";
      }
   }

   function hideAll( detail )
   {
      clearTimeout(countDown);

      // showLayer('submenu_about');

   }

   function hideSpecificLayer( layer )
   {
      hideLayer('submenu_' + layer);
   }

   function imgOn(imgName)
   {
      if (document.images)
      {
         document[imgName].src = eval(imgName + "on.src");
      }
   }

   /* Restores the original image after 2 seconds*/
   function restoreOriginal( detail )
   {
	   var str = 'hideAll( ' + detail + ' )';
	   countDown = setTimeout(str, layerWait);
   }

   function imgOff(imgName)
   {
      if (document.images)
      {
         document[imgName].src = eval(imgName + "off.src");
      }
   }

   function showLarge( sUrl )
   {
      popup_win = window.open('images/' + sUrl,'', 'width=625, height=500, scrollbars=no, resizable=no, status=no, location=center, menubar=no');
   }


   function openImage( sUrl )
   {
      large_image_win = window.open( largePicArray[sUrl], 'large_image_win', 'width=640,height=480,scrollbars=no,resizable=yes,status=no,location=no,menubar=no, left=0, top=0');
   }


// -->