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javascriptcssmootoolsnested-lists

Javascript nested list css

I have a list below:

<ul>
   <li>
      <a>Link1</a>
      <ul>
         <li>
            <a>SubLink1</a>
         </li>
         ...   
      </ul>
   </li>
   <li>
      <a>Link2</a>
   </li>
   ...
</ul>

And would like to add 'css_class' to the current mouseovered <li> element:

document.getElements('li').addEvents({
            mouseover: function(){      
               this.addClass('css_class');
            },
            mouseout: function(){
               this.removeClass('css_class');
            }
});

But this code is wrong as my parent<li> also has 'css_class'. How can I fix this? Thanks.

Solution

  • You need to stopPropagation() to prevent the event from bubbling up the listener tree:

    document.getElements('li').addEvents({
  mouseover: function(e){
    this.addClass('css_class');   
    e.stopPropagation();
  },
  mouseout: function(){
    this.removeClass('css_class');   
    e.stopPropagation();
  }
});