Silverlight 3 µ÷ÓÃjavascript º¯Êý

Silverlight 3 µ÷ÓÃjavascript º¯Êý¼òµ¥Àý×Ó£º
c# code:
using System.Windows.Browser;
 private void logout_but_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            HtmlPage.Window.Invoke("logout","Invoke");//logoutÊÇjavascript º¯ÊýÃû
        }
//----------------------------------------
xaml code:
 <Image Source="pic/close.png" Cursor="Hand"  x:Name="logout_but"  ToolTipService.ToolTip="°²È«Í˳ö" Width="20" Height="21" HorizontalAlignment="Right" MouseLeftButtonUp="logout_but_MouseLeftButtonUp"></Image>
//----------------------------------------
aspx  code:
 <script language="javascript">
function logout(){
if(confirm('È·¶¨Í˳öϵͳ£¿')){... } else{false;}
}
</script>
//------------------------------------------
¸ü¶àÄÚÈÝ£ºhttp://msdn.microsoft.com/en-us/library/cc221359(VS.95).aspx