function launchCenter(url, name, width, height, winstyle) 
	{
		var str = "height=" + height + ",innerHeight=" + height;
		str += ",width=" + width + ",innerWidth=" + width;  if (window.screen) {
		var ah = screen.availHeight - 30;    var aw = screen.availWidth - 10;
		var xc = (aw - width) / 2;    var yc = (ah - height) / 2;
		str += ",left=" + xc + ",screenX=" + xc;
		str += ",top=" + yc + ",screenY=" + yc;  }
		return window.open(url, name, str + "," + winstyle);
	}
	function PopWindow(strURL, width, height)
	{		
		launchCenter(strURL, '_blank', width, height, 'scrollbars=yes,toolbar=yes,location=yes,menubar=no,resizable=yes')
	}