function zoom( plik, xxx, yyy, id)
{o = null;
if (window.screen) {
aw = screen.availWidth;
ah = screen.availHeight;}
else {
aw = 640;
ah = 480;
}
xxx += 40;
if (xxx>screen.availWidth - 15) xxx = screen.availWidth - 15;
if (yyy>screen.availHeight - 30) yyy = screen.availHeight - 30;
u="width="+xxx+",height="+yyy+",left="+Math.round(((aw-xxx)/2)-5)+",top="+Math.round(((ah-yyy)/2)-14)+",toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no";
o = window.open( plik, 'zoom', u);
}
function open_image(x){
with(open('','f','width=400,height=250,left=250,top=250')){
document.write('Purpose'+
'