function show_image(image_url)
{
var html = 'Фотография' +
'
' +
'';
var width = 600, height = 450;
var top = Math.round((screen.availHeight-height)/2),
left = Math.round((screen.availWidth-width)/2);
var popup_window = window.open('', 'win_photo', 'left='+left+',top='+top+',width='+width+',height='+height+',toolbar=0,location=0,directories=0,menuBar=0,scrollbars=1,resizable=1');
popup_window.document.open();
popup_window.document.write(html);
popup_window.document.close();
popup_window.focus();
}