W3C = (document.getElementById) ? 1 : 0;
	IE = (document.all) ? 1 : 0;
	showHideSupport = (IE || W3C);

	function LookupElement( elemid ) {
		if (W3C) {
			return document.getElementById(elemid);
		}
		return document.all.item(elemid);
	}
	function ToggleShowHideElement( elemid ) {
		var theitem = LookupElement(elemid);
		if (showHideSupport) {
			if (theitem.style.display == "none" ) {
				theitem.style.display = "";
			} else {
				theitem.style.display = "none";
			}
		}
		return false;
	}
	function ShowElement( elemid ) {
		var theitem = LookupElement(elemid);
		if (showHideSupport) {
			theitem.style.display = "";
		}
		return false;
	}
	function HideElement( elemid ) {
		var theitem = LookupElement(elemid);
		if (showHideSupport) {
			theitem.style.display = "none";
		}
		return false;
	}
	function ChangeShowHideList( showpages, hidepages ) {
		for (i=0; i<showpages.length; i++) {
			ShowElement(showpages[i]);
		}
		for (i=0; i<hidepages.length; i++) {
			HideElement(hidepages[i]);
		}
		return false;
	}
	function ChangeSearchTabs( showpages, hidepages, imageids, images ) {
		for (i=0; i<imageids.length; i++) {
			document[imageids[i]].src = eval(images[i] + ".src");
		}
		ChangeShowHideList( showpages, hidepages );
		return false;
	}