var winPopup;

function photoPopup(strDir, strFile, nWidth, nHeight)
{
	var nLeft = window.screenLeft + 10;
	var nTop = window.screenTop + 10;
	var sURL = strDir + "photoPopup.htm?img=" + strFile;
	var sDim = "height=375,width=350";
	
	if( nWidth != null )
	{
		sURL += "&width=" + nWidth;
		sDim = sDim.replace("width=350", "width=" + (nWidth+100));
	}
	
	if( nHeight != null )
	{
		sURL += "&height=" + nHeight;
		sDim = sDim.replace("height=375", "height=" + (nHeight+70));
	}

	winPopup = window.open(sURL, "winPhotoPopup", sDim + ",top=" + nTop + ",left=" + nLeft + ",location=no,menubar=no,resizable=yes,scrollbars=no,status=no,titlebar=no,toolbar=no");
	winPopup.focus();
}

function focusPopup()
{
	if( typeof(winPopup) != "undefined" && !winPopup.closed )
		winPopup.focus();
}

function clearPopup()
{
	if( typeof(winPopup) != "undefined" && !winPopup.closed )
		winPopup.close();
}