function popup_image(url, b_width, b_height){
    //url = '/files/'+fname;
    if (b_width == 0) {
        b_width = 200;
    }
    if (b_height == 0) {
        b_height = 150;
    }
    if(b_width > 800){
        w = 800;
    }
    else{
        w = b_width+40;
    }
    if(b_height > 600){
        h = 600;
    }
    else{
        h = b_height+40;
    }
    myWin=window.open(url, '', 'resizable=yes,menubar=no,status=no,scrollbars=yes,width='+w+',height='+h);

    //myWin.window.document.write("тест");
}