jQuery mousedown find exact element on which event get fired

Hi I have this HTML code

<th scope="col" class="" style="width: 13px;">
   <div class="some-handle"></div>
  <a href="javascript:__doPostBack('ucPWP$ctl03$3056$GVReport','Sort$3')">Passengers</a>
</th>

and have this JS code

  $("Table tr th").mousedown(function (e) {  
    /*mousedown code goes here... */
    /* ignore if mousedown occur on div "some-handle" */
  }

Now I try to catch if mousedown occur on div having class "some-handle". can I do that ?

Check e.target. This is the element where the event originated.

if ($(e.target).hasClass('some-handle')) {
    // fired on div "some-handle"
}

You can do something like this

  $("Table tr th").mousedown(function (e) {   

       if ($(this).hasClass('some-handle')) { 
        // ignore
        return False;
        }
        /*mousedown code goes here... */ 
      }

what you have to do, is to store a value on the th when the mouse is over your some-handle div, then to check for this value when the mouse is over th element:

$("Table tr th").mousedown(function (e) {  
    /*mousedown code goes here... */
    /* ignore if mousedown occur on div "some-handle" */
    if(!$(this).data('overSomeHandle')) {
        // do your code here
    }
}

$('.some-handle').hover(
    function(){
        // we are over some-handle div
        $(this).parent().data('overSomeHandle', true);
    }, 
    function(){
        // we are out of some-handle div
        $(this).parent().data('overSomeHandle', false);
    }
);

I think you are having trouble because you have a link nested into your <DIV>. The link click will fire overriding your code I suspect.

Therefore you need to handle the click before you implement the code:

$("Table tr th").mousedown(function (e) 
{            
    e.preventDefault(); //this nullifies the click
    if ($(this).hasClass('some-handle')) 
    {          
        // ignore         
        return False;         
    }else{
        /*mousedown code goes here... */          
    }
});