ASP.NET - Telerik radgrid

Hi all,
Can any one send the javascript code for checkbox in radgrid and that javascript code should be called at server side.
here is the radgrid code
 <telerik:RadGrid runat="server" ID="rgScheduleStatus" AutoGenerateColumns="false" GridLines="None"
      OnItemDataBound="rgScheduleStatus_ItemDataBound" AllowPaging="true" PageSize="3"
      OnPageIndexChanged="rgScheduleStatus_PageIndexChanged" AllowMultiRowSelection="true" AllowSorting="true">
     <PagerStyle Mode="NumericPages" PageButtonCount="3"  Position="TopAndBottom"/>      
     <MasterTableView CssClass="table_12" DataKeyNames="StudentHistoryPrintID" TableLayout="Auto" RowIndicatorColumn-ShowSortIcon="true">    
      <Columns>
<telerik:GridTemplateColumn HeaderText="Delete" HeaderStyle-CssClass="tal la" ItemStyle-CssClass="tal la" UniqueName="chkschedulestatus">
         <HeaderTemplate>
           <asp:CheckBox runat="server" ID="chkSelectall"  Text="Delete" CssClass="chkheader"/>           
         </HeaderTemplate>
          <ItemTemplate>        
          <asp:HiddenField runat="server" ID="hdnStudentHistoryPrintID" />
          <asp:CheckBox runat="server" ID="chkSelect"/>
         </ItemTemplate>              
       </telerik:GridTemplateColumn>                       
      </Columns>                  
     </MasterTableView>       
    </telerik:RadGrid>

Use this code for select all and delete code in RadGrid-


protected void chkDelete_CheckedChanged(object sender, EventArgs e) 
    
      { 
        foreach (GridDataItem grdItem in RadGrid1.Items) 
        { 
        
          CheckBox chkDelete = (CheckBox)grdItem .FindControl("chkDelete"); 
  //In the radgrid's second cell we are binding the userid and delete 
 //the row using this unique id 
          int userid = Convert.ToInt32(grdItem .Cells[2].Text); 
          if (chkDelete.Checked == true) 
          { 
   //Defining the Sqlconnection using the connection string "strConn" 
        SqlConnection conn = new SqlConnection(strConn); 
        conn.Open(); 
        string query = "Delete from Users where UserId=" + userid; 
        SqlCommand cmd = new SqlCommand(query, conn); 
        cmd.ExecuteNonQuery(); 
        conn.Close(); 
      
          } 
        } 
        RadGrid1.Rebind(); 
      }

Hope this will help you.