Increment variable for

I have 30 divs with the same class on the same page. When i'm pressing the title (.pull) the content is sliding up (.toggle_container). When the content is hidden and i'm pressing the title again, the content is sliding down. Also, i want to store the div state inside a cookie. I modified my original code to store the div state inside a cookie but it's not working for all the divs (pull1, toggle_container1, pull2, toggle_container2 [...]), it's working only for the first one (pull0, toggle_container0). What i'm doing wrong?

var increment = 0;
           if ($.cookie('showTop') == 'collapsed') {
               $(".toggle_container" + increment).hide();
            }else {
  开发者_运维技巧             $(".toggle_container" + increment).show();
         };
          $("a.pull" + increment).click(function () {
            if ($(".toggle_container" + increment).is(":hidden")) {
               $(".toggle_container" + increment).slideDown("slow");
               $.cookie('showTop', 'expanded');
               increment++;
            } else {
               $(".toggle_container" + increment).slideUp("slow");
               $.cookie('showTop', 'collapsed');
               increment++;
            }
            return false;

          });    

I haven't tried any of your code, but won't $("a.pull" + increment) = $("a.pull0") ? and I don't see any for loop so the increment 0 selector is the only one that will get executed?

a jquery selector to look at might be http://api.jquery.com/attribute-starts-with-selector/ If you can select divs that have a class that starts with .pull (or whatever) instead of having to bind to 30 different divs then I think your code will be more performant.

This is the code:

$('div.toggle_container').each(function() { // Initialise
        var index = this.id.replace(/^\D+/, '');
              $(this).toggle($.cookie('showTop' + index) == 'collapsed');
            });

    $('a.pull').click(function() { //Activate                  
        var index = this.id.replace(/^\D+/, '');
        if ($.cookie('showTop' + index) == 'collapsed') {
        var container = $('#toggle_container' + index).slideDown('slow');
        $.cookie('showTop' + index, container.is(':hidden') ? 'collapsed' : 'expanded');
        }else {
        var container = $('#toggle_container' + index).slideUp('slow');
        $.cookie('showTop' + index, container.is(':visible') ? 'expanded' : 'collapsed');
            }
});