模拟淘宝搜索框
<html> <head> <title> 测试输入框 </title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js"></script> <script type="text/javascript"> $(function(){ $("#q").focus(function() { $("label[for=q]").hide(); }); $("#q").blur(function () { // alert($("#q").val()); if ("" == $("#q").val()) { $("label[for=q]").show(); } }); }); </script> </head> <body> <form> <span>模拟搜索框: <label for="q" style="visibility: visible; color: #666; position: absolute; left: 120px; top: 18px; ">输入您想搜索的宝贝</label> <input id="q" type="text" autocomplete="off" title="搜索宝贝" name="q" size="25" /> </span> </form> </body></html>?