用jquery实现输入框消失文字
<html><head> <title>用jquery实现输入框消失文字</title> <style type="text/css"> .default { font-weight: bold; color: #787878; } </style> <script type="text/javascript" src="/js/jquery/jquery-1.8.1.min.js"></script> <script type="text/javascript"> $(document).ready(function() { $("#keywords").focus(function () { var $this = $(this); if ($this.val() == $this[0].defaultValue) { $this.css("color","#0cf").val(""); } }).blur(function () { var $this = $(this); if ($this.val() == "") { $this.removeAttr("style").val($this[0].defaultValue); } })//keywords }); </script></head><body><div id="content"> <form method="POST" id="user" action=""> User Name:<input type="text" id="keywords" name="keywords" value="Enter your name"/><br/> PassWord:<input type="text" id="password" name="password" value="Enter your password"/> <input type="submit" name="sub" value="login"/> </form></div></body></html> 
