Question : ListBox Selected Index from Javascript

Dear Experts

i am using ASP.NET 2.0 JavaScript C#

i want to get the selected index change event for list box by javascript
i want to know the name of the event.

thank you

Answer : ListBox Selected Index from Javascript

Add alist box as shown

                    atem>
                    btem>
                    ctem>
               
Add a javascript function
 function Selection(){
            var List=  document.getElementById('ListBox1');
            alert(List.options[List.selectedIndex].value);
        }
Then in code behind ,  

ListBox1.Attributes.Add("onchange", "Selection();");