function PopDocument(strUrl, strWindowName) 
{
	var intWidth = 600;
	var intHeight = 500;
	
	// calculate the center of the page
	var intX = ((760 - intWidth) / 2);
	var intY = ((screen.availHeight - intHeight) / 2);

	var strFeatures = ('width=' + intWidth + ', height=' + intHeight + ', left=' + intX + ', top=' + intY + ', scrollbars=1, status=0, resizable=1, location=0, menubar=0, toolbar=0');
	var winArticles = window.open(strUrl, strWindowName, strFeatures);
}