Works in IE, Safari, Chrome, & Opera but not in Firefox.

[ADeMen]

I am using this to switch content in a css folder as well as switching an image at the same time. Unfortunately I can not for the life of me get it to work in Fireofx. I have tested in ALL other browsers and it works fine. Java is on in my Firefox app, and I have tested it on other computers as well with the same results.

This si the last thing I need to figure out before I go live with my site. Any help would be greatly appreciated.

<script type="text/javascript">
	  var selectedTab;
	  
	  function showFolder(currFolder, currTab)
	  {
	    selectedTab = currTab;
		
		var folderObj = document.getElementById("folderContainer");
		
		var divCollection = folderObj.getElementsByTagName("DIV");
		
		var tabObj =  document.getElementById("tabContainer");
		
		var spanCollection = tabObj.getElementsByTagName("SPAN");
		
          //now loop through the divs inside the folder container 
          for( i = 0;    i<divCollection.length;  i++ )
          {
            //set all folders to hidden
	        if(divCollection[i].className  == "folder")
	        {
	          divCollection[i].style.visibility  = "hidden";
	        }
	      } 
		  
		  //now loop through the tabs
          for( i = 0;    i<spanCollection.length;  i++ )
          {
	        //set all tabs to the inactive color;
	        if (spanCollection[i].className  == "tabParentActive")
	        {
	          spanCollection[i].className = "tabParent";
			}
          }
	
          currFolder.style.visibility = "visible";
          
          currTab.className = "tabParentActive"
        }
		
		//these functions are called when the tabs are moused over
        function activateTab(currTab)
        {
          currTab .className  = "tabParentActive";
        }

        function inactivateTab(currTab)
        {
          if(selectedTab.id != currTab.id)
          {
            currTab .className  = "tabParent";
          }
        }
			
</script>

<script type="text/javascript">

    function toggle_visibility(prodimage2) {
       var e = document.getElementById(prodimage2);
       if(e.style.display == 'block')
	   e.style.display = 'none';
       else
          e.style.display = 'block';
    }
</script>