var imgObj;
function checkImg(theURL, winName) {
	if (typeof(imgObj) == "object") {
		if ((imgObj.width != 0) && (imgObj.height != 0))
			OpenFullSizeWindow(theURL, winName, ",width=" + (imgObj.width+20) + ",height=" + (imgObj.height+30));
		else
			setTimeout("checkImg('" + theURL + "','" + winName + "')", 100);
	}
}

function OpenFullSizeWindow(theURL,winName,features) {
	var aNewWin, sBaseCmd;
	sBaseCmd = "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,";
	if (features == null || features == "") {
		imgObj = new Image();
		imgObj.src = theURL;
		checkImg(theURL, winName);
	} else {
		aNewWin = window.open(theURL,winName, sBaseCmd + features);
		aNewWin.focus();
	}
}