jquery绑定事件

<div class="footReturn">

<a id="showcard"  class="submit" >验证工号</a>

<div class="window" id="windowcenter" >

<div id="title" class="wtitle"><span class="close" id="alertclose"></span></div>

<div class="content">

<div id="txt"></div>

</div>

</div>

</div>

<div  id="msg">&nbsp;</div>

<script type="text/javascript">

$(function(){

});

$("#showcard").bind("click",

function() {

});