function popImage(imageURL,imageTitle,defaultWidth,defaultHeight){
var PositionX = (screen.availWidth-defaultWidth)/2;
var PositionY = (screen.availHeight-defaultHeight)/2;
if (parseInt(navigator.appVersion.charAt(0))>=4){
var isNN=(navigator.appName=="Netscape")?1:0;
var isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;}
var optNN='scrollbars=no,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY;
var optIE='scrollbars=no,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY;
if (isNN){imgWin=window.open('about:blank','',optNN);}
if (isIE){imgWin=window.open('about:blank','',optIE);}
with (imgWin.document){
writeln('Nagykép megtekintése');writeln('');
writeln('function doTitle(){document.title="'+imageTitle+'";}');
writeln('');
writeln('
');
if (!AutoClose) writeln('');
close();
}}