jQuery验证插件
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使用示例：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head> <title>validate验证插件</title> <script type="text/javascript" src="Jscript/jquery.js"> </script> <script type="text/javascript" src="js/jquery.validate.js"> </script> <script type="text/javascript" src="js/messages_cn.js"> </script> <style type="text/css"> body{font-size:13px} span{color:Red;font-size:12px} .divFrame{width:260px;border:solid 1px #666} .divFrame .divTitle{padding:5px;background-color:#eee;font-weight:bold} .divFrame .divContent{padding:8px;line-height:1.6em} .divFrame .divBtn{padding-bottom:8px;padding-left:8px} .txt{border:#666 1px solid;padding:2px;width:150px;margin-right:3px} .btn {border:#666 1px solid;padding:2px;width:80px; filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr=#ffffff, EndColorStr=#ECE9D8);} </style> <script type="text/javascript"> $(function() { $("#frmV").validate( { /*自定义验证规则*/ rules: { username: { required: true, minlength: 6 }, email: { required: true, email: true } }, /*错误提示位置*/ errorPlacement: function(error, element) { error.appendTo(element.siblings("span")); } } ); }) </script></head><body> <form id="frmV" method="get" action="#"> <div name="username" type="text" /> <font color="red">*</font><br /> <span></span> </div> <div> 邮箱：<br /> <input id="email" name="email" type="text" /> <font color="red">*</font><br /> <span></span> </div> </div> <div type="submit" value="提交" /> </div> </div> </form></body></html>??