ScriptRegistrar().OnDocumentReady in partialview

[Ben]

Hey,

I have a little problem. I have a partial view that has a button wich opens a pop up. This popup contains 3 drop down boxes. The problem is that for some reason the 3th dropbox is disabled, but it gets enabled the moment you change the second dropbox. Because the values it contains than changes. In order to fix this I try using:

$(document).ready(function() {

        @{ Html.Telerik().ScriptRegistrar().OnDocumentReady("DoSiteChanging()");  }

    });

And this function should be executed:

    function DoSiteChanging() {

        $('#Sites').trigger("valueChange");
        $('#Buildings').trigger("valueChange");
        $('#Rooms').trigger("valueChange");<
    }

    
But it never enters DoSiteChanging(), I tried debugging but it just never enters the javascript function