RadTabStrip with Focus

[mani]

hi
 I Used the RadTabStrip control i tried to use the focus for each tab first control(using Java scripts). When i was clicking the tab that time the error showing like that Con't do " focus the control because it is invisible, not enable or of a type there does not accept the frous"


I wrote the code like this
<script type="text/javascript">
         function onTabSelecting(sender, args) {

           //  var MyTab = addPropertyTabStrip.FindTabByText("Tab 2");                          
                 
            // $find("<%= cmbContactManager.ClientID %>").focus();          
             // alert("OnClientTabSelecting: " + args.get_tab().get_text());
           //  var comboBox = $find("<%=cmbContactManager.ClientID %>");
            // var input = comboBox.get_inputDomElement();
            // input.focus();
             // SetFocus();
             

           //  var item = comboBox.get_selectedItem();
          //   document.getElementById("<%=hdnMasterInfoLocation.ClientID %>").focus();
             // document.getElementById(<%=cmbContactManager.ClientID %>.InputID).focus();

            
           
         }
         function onTabSelected(sender, args) {
             // alert("OnClientTabSelecting: " + args.get_tab().get_text());
            // var MyBox = document.getElementById('<%= addPropertyDetailsPageView.FindControl("txtDetailsSleeps").ClientID %>')
             //  MyBox.focus();

             var tb;
             tb = document.getElementById('<%= txtDetailsSleeps.ClientID %>')
             if (tb != null) {
                 window.setTimeout(function() {
                     tb.focus();
                 }, 100);
             }  
         }
         
function SetFocus()  
{  
// var comboBox = $find("<%= cmbContactManager.ClientID %>").focus();  ;
 
 // var input = document.getElementById(comboBox.InputID);  
//  input.focus();  
}  

     </script>

<JetSoft:RadTabStrip ID="addPropertyTabStrip" runat="server" OnClientTabSelected="onTabSelected"  SelectedIndex="0" MultiPageID="addPropertyMultipage">
        <Tabs>
            <JetSoft:RadTab runat="server" Width="85px"  Text="<%$ Resources:AdminResource, tabAddproPertyMasterInfo %>" Selected="True">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server"  Width="75px" Text="<%$ Resources:AdminResource, tabAddPropertyContacts %>">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server" Width="75px" Text="<%$ Resources:AdminResource, tabAddPropertyDetails %>">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server" Width="85px" Text="<%$ Resources:AdminResource, tabAddPropertyBedLayout %>">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server" Width="80px" Text="<%$ Resources:AdminResource, tabAddPropertyUtilities %>">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server" Width="105px" Text="<%$ Resources:AdminResource, tabAddPropertyRatesPolicies %>">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server" Width="70px" Text="<%$ Resources:AdminResource, tabAddPropertyPictures %>">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server" Width="80px" Text="<%$ Resources:AdminResource, tabAddPropertyAmenities %>">
            </JetSoft:RadTab>
            <JetSoft:RadTab runat="server" Width="75px" Text="<%$ Resources:AdminResource, tabAddPropertyCharges %>">
            </JetSoft:RadTab>                        
        </Tabs>
</JetSoft:RadTabStrip> 


Notes:
     Some tab begin with combo box and some tab begin with text box and check box how can i solved this problem like begin with different problem. Please give me sample both
 
Let me know how can i solve this problem and Please do needful

Regards
G. Manikandan