
<!--
   function getElementsByClass(node,searchClass,tag) 
   {  
     var classElements = new Array();  
         if ( node == null )  
             node = document;
			 
         if ( tag == null )  
             tag = '*';  

     var els = node.getElementsByTagName(tag); // use "*" for all elements  
     var elsLen = els.length;  
     var pattern = new RegExp("\\b"+searchClass+"\\b"); 
	 
     for (i = 0, j = 0; i < elsLen; i++) 
	 {  
          if ( pattern.test(els[i].className) ) 
		  {  
			classElements[j] = els[i];  
			j++;  
          }  
     }  
     return classElements;
   }  
   
   function toggleByClass(theClass,height)
   {
     var el = getElementsByClass(document,theClass);  
     var elLength = el.length;  
     for (i = 0; i < elLength; i++ ){
		 if (el[i].style.visibility == "visible") {
			//if (pheight == '')
				//pheight = 0;
			hideByClass(theClass);				
		 } else {
			showByClass(theClass,height);				
		 }
     };  
   }
   
   /*function clearByClass(theClass)
   {
     var el = getElementsByClass(document,theClass);  
     var elLength = el.length;  
     for (i = 0; i < elLength; i++ ){
		el[i].value = "";
     };  
   }*/
   
   function hideByClass(theClass)
   {  
     var el = getElementsByClass(document,theClass);  
     var elLength = el.length; 
     for (i = 0; i < elLength; i++ )
	 {  
         el[i].style.visibility = "hidden"; 
         el[i].style.height = '0px'; 
     };  
   }  

   function showByClass(theClass,height) {  
     var el = getElementsByClass(document,theClass);  
     var elLength = el.length;  
     for (i = 0; i < elLength; i++ ){  
         el[i].style.visibility = "visible";  
         el[i].style.height = height; 
     };  
   }
   
   function setImage(image) 
   {  
		document.IMG2.src = image; 
		showByClass('overlay');   
   }
   
-->