Select multiple ID's - Both checkboxes must be selected

Question

Is there a way for two or more ID\'s be required to be checked before doing something.

For instance:

If BOTH Checkbox 1 and Checkbox 2 are checked then th

Answer 1

$(document).ready(function() {
   var check1 = $("#check1");
   var check2 = $("#check2");

   // this method decides what to do when a checkbox is clicked
   var trigger_event = function() {
        if (check1.attr("checked") && check2.attr("checked")) {
            event1();
        }
        else if (check1.attr("checked") && !check2.attr("checked")) {
            event2();
        }
        else if (!check1.attr("checked") && check2.attr("checked")) {
            event3();
        }
   };

   // append event
   check1.click(function() {
       trigger_event();
   });

   check2.click(function() {
      trigger_event();
   });

};