I am trying to call a method in action class in javascript function on button click event which is in jsp.I am using struts 2.could you tell me how to do this?
There is a function in ListAlgorithmAction Class which I want to call when the user clicks submit button.

```
function alertselected (){
    var x = document.getElementById ( "select_name" ).selectedIndex;
    var y = document.getElementById ( "select_name" ).options;
    var id = y [x].index;
    redirect(id);
}

function redirect(x){
    document.getElementById ( "param_ID" ).value = x;
    document.forms ["./ListAlgorithmAction"].submit ();
}

```