我不认为你应该加载像这些琐碎的任务服务器。你可以尝试像这的1件事的一些jQuery UI的封闭液。微软Ajax工具包也应该有一定的控制，做同样的。我已经用它很久以前，不能似乎记得，虽然该控件的名称。

I dont think that you should be loading the server for trivial tasks like these. You could try some thing jquery UI blocking solution like this one. Microsoft Ajax toolkit should also have some control which does the same. I had used it a long time ago, cant seem to recall the control name though.