function OpenWindow(url,scrol,w,h){
	posLeft = ( screen.width / 2) -  ( w / 2 );
	posTop = ( screen.height / 2 ) -  ( h / 2 );
	windowprops = "top=" + posTop + ",left=" + posLeft+",width=" + w + ",height=" + h + ",scrollbars=" + scrol;
	{var win = window.open(url, "popupPage", windowprops);win.focus();return false;}
}