function swap(what,state) {
			objImage = eval("document."+ what);
			objImage.src = "/unas/interface/images/" + what + "_" + state + ".gif";
		}
		
	if (navigator.appName == "Netscape"){
	        layerStyleRef="layer.";
	        layerRef="document.layers";
	        styleSwitch="";
	        visibleVar="show";
	}
	
	else{
	        layerStyleRef="layer.style";
	        layerRef="document.all";
	        styleSwitch=".style";
	        visibleVar="display";
	}		
		
	function sL(layerName){
	        eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.display="block"');
	}

	function hL(layerName){
	        eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.display="none"');
	}