function openWindow(url,name,prop) {
	var new_win = window.open(url,name,prop);
}

function popup(url, width, height) {
	winName='Win';
	W=width+20;
	H=height+20;
	var left=Math.round((screen.width-W)/2)+"px";
	var top=Math.round((screen.height-H)/2)+"px";

	var left = (screen.width - width) / 2;
	var top = ((screen.height - height) / 2) - 50;
	//var left="100px";
	//var top="100px";
	window.open(url,winName,"scrollbars=1,width="+W+",height="+H+", top="+top+", left="+left);
}