Jquery “select all” checkbox

Question

I am trying to select all checkboxes on a page once the \'select all\' checkbox is clicked and i am using jquery for this as you can see at the below link:

http://js

Answer 1

$(function(){

// add multiple select / deselect functionality
$("#selectall").click(function () {
      $('.case').attr('checked', this.checked);
});

// if all checkbox are selected, check the selectall checkbox
// and viceversa
$(".case").click(function(){

    if($(".case").length == $(".case:checked").length) {
        $("#selectall").attr("checked", "checked");
    } else {
        $("#selectall").removeAttr("checked");
    }

});

});