function viewImage(f,w,h,id) {
	src = '/viewers/image.php?f='+f+'&w='+w+'&h='+h+'&id='+id;
	openWindow(src, w, h, false);
}
function openWindow(src, width, height, scroll) {
	window.open(src, 'picture', "width=" + width + ",height=" + height + ",left=" + Math.round((screen.width - width) / 2) + ",top=" + Math.round((screen.height - height) / 2 - 40) + ",scrollbars=" + (scroll ? 1 : 0) + ",resizable=0,status=0").focus();
}