var imgObj,popwidth,popheight,scrolls;
function checkimg(theURL){
	if (typeof(imgObj) == "object"){
		if(imgObj.width!=0 &&imgObj.height!=0){
			popwidth=(imgObj.width>screen.width)?screen.width:(imgObj.width+6);
			popheight=(imgObj.height>screen.height)?screen.height:(imgObj.height+26);
			scrolls=(imgObj.height>screen.height||imgObj.width>screen.width)?"":"scroll:no;";
			window.showModalDialog("pop.htm", theURL, "dialogWidth:"+popwidth+"px; dialogHeight:"+popheight+"px; status:no; directories:yes;"+scrolls+"Resizable=no; help:no;"  );
		}
		else{
			setTimeout("checkimg('" + theURL + "')", 50);
		}
	}
}
function fpop(theURL) { 
	imgObj = new Image();
	imgObj.src = theURL;
	checkimg(theURL);
	return false;
}