var winNewWindow = null;
function PopWin(strURL,strName,numWidth,numHeight) {
	if (winNewWindow == null || winNewWindow.closed) {
		winNewWindow = window.open(strURL, strName,'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=' + numWidth + ',height=' + numHeight);
	} else {
		if (winNewWindow.closed == false) {
			winNewWindow.location = strURL;
			winNewWindow.focus();
		}
	}
}