asp.net stationary slight modernise page

i have page dispute webservice each 5 seconds transform information page. i'm controlling dynamicpopulateextender ajax control toolkit only stock quarrel text.

what i wanting do, certain condition met, modernise page completely.

am i going means tide slight i have? here's tide stuff:

---

asp.net

<cc1:dynamicpopulateextender id="dynamicpopulateextender1" runat="server"
clearcontentsduringupdate="true" targetcontrolid="panelqueue" behaviorid="dp1"
servicemethod="getqueuetable" updatingcssclass="dynamicpopulate_updating" />

javascript

sys.application.add_load(function(){updatequeue();});

    duty updatequeue()
    {
        var queueshown = document.getelementbyid('<%= hiddenfieldqueueshown.clientid %>').value;

        if(queueshown == 1)
        {
            var function = $find('dp1');
            (behavior)
            {
                behavior.populate();                    
                settimeout('updatequeue()', 5000);
            }
        }
    }

server (c#)

[system.web.services.webmethod]
    [system.web.script.services.scriptmethod]
    open stationary twine getqueuetable()
    {
        system.text.stringbuilder builder = new system.text.stringbuilder();

        try
        {
             // stuff
        }
        locate (exception ex)
        {
             // stuff
        }

        relapse builder.tostring();
    }