jquery Ajax表单验证简单例子

   <div class="bdbox">
        <ul> 
     <li><span class="bdl"><em>*</em>企业名称:</span>&nbsp;&nbsp;<span class="bdr"><input id="companynames" name="companyname" size="30" class="txt" /></span></li>
            <li><span class="bdl"><em>*</em>企业网址:</span>&nbsp;&nbsp;<span class="bdr"><input id="companyurls" name="companyurl" size="30" class="txt" /></span></li>
            <li><span class="bdl"><em>*</em>您的称呼:</span>&nbsp;&nbsp;<span class="bdr"><input id="names" name="name" size="30" class="txt" /></span></li>
     <li><span class="bdl"><em>*</em>您的手机:</span>&nbsp;&nbsp;<span class="bdr"><input id="phones" name="phone" size="30" class="txt" /></span></li>
     <li class="gaob"><span class="bdl">&nbsp;&nbsp;&nbsp;备注留言:</span><span class="bdr"><textarea id="notes" name="note" rows="3" cols="26" onfocus="if(value=='请填写您想说的其他内容！') {value=''}" onblur="if (value ==''){value='请填写您想说的其他内容！'}">请填写您想说的其他内容！</textarea></span></li>
     <li class="gaoc">
            <input id="wfsubmits" type="image" src="__PUBLIC__/images/lijishenqing.jpg"
           onclick="customerAdds()" name="wfsubmits" value="" class="send" />
    <input type="hidden" value="" name="web_ref" id="web_ref" />
     </li>
        </ul> 
   </div>   
<script type="text/javascript">
      function customerAdds(){
   $("#wfsubmits").attr('disabled','disabled');
   var companyname=$("#companynames").val();
   var companyurl=$("#companyurls").val();
   var name=$("#names").val();
   var phone=$("#phones").val();
   var note=$("#notes").val();
 
   if(companyname == ''){
  ui.error("企业名称不能为空！");
  $("#wfsubmits").removeAttr('disabled');
  return false;
   }
   if(name == ''){
  ui.error("您的称呼不能为空！");
  $("#wfsubmits").removeAttr('disabled');
  return false;
   }
  if(phone == ''){
  ui.error("手机号码不能为空！");
  $("#wfsubmits").removeAttr('disabled');
  return false;
  }else if(isPhone(phone)==false){
  ui.error("手机号码格式不正确！");
  $("#wfsubmits").removeAttr('disabled');
  return false;
  }
  $.post("{:U('Home/Index/ajaxAddCustomer')}",{companyname:companyname,companyurl:companyurl,name:name,phone:phone,note:note},function(res){
  if(res>0) {
   $("#companynames").val('');
   $("#companyurls").val('');
   $("#names").val('');
   $("#phones").val('');
   $("#notes").val('');
   ui.success('提交成功');
  }else {
   ui.error('提交失败');
  }
  $("#wfsubmits").removeAttr('disabled');
 });
}
     function isPhone(str){
          var re=/^((＼(＼d{3}＼))|(＼d{3}＼-))?13[0-9]＼d{8}?$|15[0-9]＼d{8}?$|18[0-9]＼d{8}?$/;
   if (re.test(str) != true) {
  return false;
   }else{
  return true;
 } 
  }
</script>