function openWin(winURL, y, xOffset, width, height, winname, menubar) {
	var x, y, thisWindow, ustawienia;
	var x=screen.availWidth/2 - width/2 + xOffset;
	if (x<0) x=0;
	if (y<0) y=0;
	var addSpace=(menubar)?100:50;
	if (height>screen.availHeight-y-addSpace) height=screen.availHeight-y-addSpace;
	if (width>screen.availWidth) width=screen.availWidth;
	ustawienia="width="+width+ ",height="+height+ ",resizable=1,status=1,scrollbars=1,location=0,menubar=" +menubar+ ",left="+x+ ",top="+y
	
	thisWindow=window.open(winURL,winname,ustawienia);
	thisWindow.focus();
}


function openPhoto(elem, id) {
	winname = (id==null) ? 'Photo' : 'Photo' + id;
	openWin(elem.href, 40, 20, 810, 750, winname, 0);
	return false;
}