function Open_Photo(theURL,title,x,y) {
vyska = screen.height;
sirka = screen.width;
var levy = (sirka - x)/2;
var horni = (vyska - y)/2;
popup = window.open(theURL,"foto","width="+x+",height="+y+",left="+levy+",top="+horni);
popup.document.open();
popup.document.write(''+title+'');
popup.document.write('
');
popup.document.write('');
popup.document.close();
popup.moveTo( ((screen.availWidth-x)/2),((screen.availHeight-y)/2) );
popup.focus();
}