var myPop = null;
function popUp(address,w,h)
{    
	var option = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1";
	if (myPop && (! myPop.closed)) myPop.close();
	w=w+20;
	h=h+20;
	option = option+",width="+w+",height="+h;
	myPop = window.open(address,"popup",option);
	if (myPop) return false;
		else return true;
}