function openWindowSize(url,x,y) {
	var itemSpec=window.open(url, null, "width=" +x + ",height=" +y + ",scrollbars=yes,screenX=0,screenY=0,resize=yes,resizable=yes,scrollbar=yes");
	itemSpec.parentDocument=document;
	itemSpec.focus();
	itemSpec.moveTo(0,0);
	//document.itemSpec.onunload=function () {window.parent.document.itemSpec=null;};
	return itemSpec;
}