var dom = (document.getElementById)? true:false;
var ns4 = (document.layers)? true:false;
var ie4 = (document.all)? true:false;
	


	function highlightOn(lyr){
	
		if(dom==true){
		document.getElementById(lyr).style.visibility = "hidden";
		}
		
		if(ie4==true){
		document.all[lyr].style.visibility = "visible";
		}
		
		if(ns4==true){
		document.layers[lyr].visibility = "show";
		}
		
	}
	
	function highlightOff(lyr){
	
		if(dom==true){
		document.getElementById(lyr).style.visibility = "visible";
		}
		
		if(ie4==true){
		document.all[lyr].style.visibility = "hidden";
		}
		
		if(ns4==true){
		document.layers[lyr].visibility = "hide";
		}
		
	}
	
	function popUp(id){
		window.open('photo.asp?dsid='+id,'photos','width=680,height=500,scrollbars=yes')
	}
	
	
	function openWin(url,name,features) {
	window.open(url,name,features);
	}