ng5 = (document.getElementById) ? true:false
ns4 = (document.layers) ? true:false
ie4 = (document.all) ? true:false 
	

function openPop(w,h,webaddress,name,scrolls) {
	 	var winLeft = (screen.availWidth/2)-(w/2);
		var winTop = (screen.availHeight/2)-(h/2);
		var scroll = scrolls;
		var viewimageWin = window.open(webaddress,name,'left='+winLeft+',top='+winTop+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars='+scroll+',resizable=yes,copyhistory=no,width='+w+',height='+h);
		viewimageWin.focus();
	}
function showLyr(divID){				
	if (ng5) {
		var lyr = document.getElementById(divID);			
		lyr.style.display = "block";	
	}
	else if (ns4) {
		var lyr = document.layers[divID];
		lyr.visibility = "show";	
	}
	else if (ie4){
		var lyr = document.all[divID];
		lyr.style.display = "block";	
	}	
}
function hideLyr(divID){				
	if (ng5) {
		var lyr = document.getElementById(divID);			
		lyr.style.display = "none";	
	}
	else if (ns4) {
		var lyr = document.layers[divID];
		lyr.visibility = "hidden";	
	}
	else if (ie4){
		var lyr = document.all[divID];
		lyr.style.display = "none";	
	}	
}


function changeParent(page){
 		opener.location.replace(page);
		opener.focus()
	window.close();
	}