function subPopUp(strURL, intW, intH)
{
	var strFeatures;

	var intT = (window.screen.height - intH) / 2;
	var intL = (window.screen.width - intW)  / 2;

	strFeatures = "";
	strFeatures = strFeatures + "toolbar=no,";
	strFeatures = strFeatures + "location=no,";
	strFeatures = strFeatures + "directories=no,";
	strFeatures = strFeatures + "status=no,";
	strFeatures = strFeatures + "menubar=no,";
	strFeatures = strFeatures + "scrollbars=yes,";
	strFeatures = strFeatures + "resizable=no,";
	strFeatures = strFeatures + "width="  + intW + ",";
	strFeatures = strFeatures + "height=" + intH + ",";
	strFeatures = strFeatures + "top="	  + intT + ",";
	strFeatures = strFeatures + "left="	  + intL;

	window.open (strURL, "PopUp", strFeatures);
}