var IEVersion = getIEVersionNumber();

function getIEVersionNumber() {
    var ua = navigator.userAgent;
    var MSIEOffset = ua.indexOf("MSIE ");

    if (MSIEOffset == -1) {
        return 100;
    } else {
        return parseFloat(ua.substring(MSIEOffset + 5, ua.indexOf(";", MSIEOffset)));
    }
}

function hide(t) {
    /*var top_tr = t.closest('tbody');
    top_tr.next().css({display:'none'});
    t.parent().siblings('.section_text').css({display:'none'});*/
    t.parent().next().css({display:'none'});
    t.parent().next().next().css({display:'none'});
    t.html("<img src='" + image_url + "/plus.gif'>");
    t.removeClass('section_hide');
    t.addClass('section_show');
    $.post("products.cgi", { ajax: "1", prod_section_off: t.parent().attr('class').substr(13) });
}

function show(t) {
    t.parent().next().css({display:'block'});
    t.parent().next().next().css({display:'block'});
    /*var top_tr = t.closest('tbody');
    if (IEVersion <= 7)
      top_tr.next().css({display:'block'});
    else
      top_tr.next().css({display:'table-row-group'});
    t.parent().siblings('.section_text').css({display:'inline'});*/
    t.html("<img src='" + image_url + "/minus.gif'>");
    t.removeClass('section_show');
    t.addClass('section_hide');
    $.post("products.cgi", { ajax: "1", prod_section_on: t.parent().attr('class').substr(13) });
}



  $(function () {
    $('.implicit').css({display:'block'});
    $('.section_head').append("  <a class='section_show'><img src='" + image_url + "/plus.gif'></a>");
    $('.explanation').css({display:'none'});
    var on_count = 0;
    for (var i in sections_on) {
      if ( $('.'+  sections_on[i]).length > 0) {
        show( $('.'+  sections_on[i]).find('.section_show'));
        on_count++;
      }
    }
    $('.content').css({display:'block'});
    $('#footer').css({display:'block'});

    if (on_count > 0)
      $('.item_head').after("  <div class=sections_global>Hide all sections<img class='all_hide' src='" + image_url + "/minus.gif'></div>");
    else
      $('.item_head').after("  <div class=sections_global>Show all sections<img class='all_show' src='" + image_url + "/plus.gif'></div>");
    $(document).on('click','.all_hide', function() {
      $(this).parent().next().find('.section_hide').click();
      $(this).parent().html("Show all sections<img class='all_show' src='" + image_url + "/plus.gif'>");
    });

    $(document).on('click','.all_show', function() {
      $(this).parent().next().find('.section_show').click();
      $(this).parent().html("Hide all sections<img class='all_hide' src='" + image_url + "/minus.gif'>");
    });

  });


  $(document).on('click','.section_hide', function () {
    hide($(this));
  });

  $(document).on('click','.section_show', function () {
    show($(this));
  });