How to use bankruptcy cancellation events

Question

I searched everywhere for code on how to stop event bubbles, and I found it on the Quirksmode website:

function doSomething(e){
    if(!e) var e = window.event;
    e.cancelBubble = true;
    if(e.stopPropagation) e.stopPropagation();
}

But I do not know how and where to use it. What is the 'e' parameter used as (or what needs to be passed as 'e')? Is this function called in the event handler code? ... etc.?

I need help, please, can someone tell me?

Basically, I have 4 elements that have an onchange handler called updateAvailableAttributes (), for example:

<select id="deliveryMethod" name="deliveryMethod" onchange="updateAvailableAttributes();"></select>

<select id="formatMethod" name="formatMethod" onchange="updateAvailableAttributes();"></select>

<select id="yearsMethod" name="yearsMethod" onchange="updateAvailableAttributes();"></select>

<select id="updateMethod" name="updateMethod" onchange="updateAvailableAttributes();"></select>

Here is the updateAvailableAttributes () script:

function updateAvailableAttributes() {
var form = document.forms["orderDefinition"];
form.elements["formChangeRequest"].value = "true";
$.ajax({
  type: "POST",
  url: "ajax/possibleValues.html",
  data: $("form#orderDefinition").serialize(),
  success: function(response){
    $('#usercontent .sleeve .toprow').html(response);

    applyValidation();
    radioButtonHighlightSelection();

  },
  error: function(response, ioArgs) {
         if (response.status == 601) {
             sessionTimedOut();
         } 
      }
});

// Display a "please wait" message
$("#waitingMsgOverlay, #waitingMsgBox, #waitingMsg, #waitingMsgParag").ajaxStart(function(){
      var map = document.getElementById("OrderMap");
      map.disableApplication();
      $(this).show();
      radioButtonHighlightSelection();
  }).ajaxStop(function(){
      var map = document.getElementById("OrderMap");
      map.enableApplication();
      $(this).hide();
      $("#toolpanel").height($("#orderMap").height());
      radioButtonHighlightSelection();
});}

My question is, how can I enable 'doSomething (e)' with 'updateAvailableAttributes ()' Do I already have an onchange event handler?

Thanks in advance.

Answer 1

e - . , u div div, js click, doSomething. onclick onclick = "doSomething (event);" div

Answer 2

doSomething . , . "e" JavaScript.

Answer 3

DOM , , . onclick. , . element.addEventListner(event,yourfunction,bubble).

. http://www.quirksmode.org/js/events_advanced.html