Execute JavaScript in a modal window

Question

Hello,

 

I have the following JS code:

 

<script type="text/javascript">
    $(document).ready(function () {
        var items = "<option value='0'>Select</option>";
        $('#DistrictID').html(items);
    });
</script>

This populate a dropdownlist with the value Select, the thing is, this dropdownlist appears in a form that it's called once the user clicks a button and then a modal windows opens, with the form in it.

 

But since it is mark as  

 

$(document).ready

 This JS won't execute with the modal, since the document is already 'ready'. How can I achieve this?

 

Thanks in advance!

 

Regards,