How to Remove duplicate dropdown option elements with same value

Question

How can I remove duplicate values -> drop down option elements?
I have the following HTML:

All Servers


        

Answer 1

use this :

$(document).ready(function () {
    var usedNames = {};
    $("select > option").each(function () {
        if (usedNames[this.value]) {
            $(this).remove();
        } else {
            usedNames[this.value] = this.text;
        }
    });
});

demo here : http://jsfiddle.net/aelor/aspMT/