登录时的各种信息提示

<!--
$(document).ready(function()
{
//checkSubmit
$('#regUser').submit(function ()
{
if(!$('#agree').get(0).checked) {
alert("你必须同意注册协议！");
return false;
}
if($('#username').val()==""){
$('#username').focus();
alert("用户名不能为空！");
return false;
}
if($('#userpassword').val()=="")
{
$('#userpassword').focus();
alert("登陆密码不能为空！");
return false;
}

if($('#repassword').val()!=$('#userpassword').val())
{
$('#repassword').focus();
alert("两次密码不一致！");
return false;
}

if($('#mobile').val()=="")
{
$('#mobile').focus();
alert("手机号不能为空！");
return false;
}

if($('#vdcode').val()=="")
{
$('#vdcode').focus();
alert("验证码不能为空！");
return false;
}
})
//去除两边空格
String.prototype.Trim   =   function()
{
return   this.replace(/^\s*|\s*$/g,"");
}

//AJAX changChickValue
$("#username").change( function() {
var username = $("#username").val();
var flag = 1;
var c;

username = username.Trim();

if((username.length!=0)&(username.length<6||username.length>20)){
var str = "<font color='red'><b>×请使用6-20位做用户名！</b></font>";
$("#_userid").html(str);
$('#username').focus();
}else{

var letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890_.@";
for(var i=0;i<username.length;i++){
c = username.charAt(i);
if(letters.indexOf( c ) < 0){
flag = 3;
}
}

if(flag==3){

var str = "<font color='red'><b>×请使用数字字母下划线做用户名！</b></font>";
$("#_userid").html(str);
$('#username').focus();

}else{

$.post("reg.php",
{dopost:'checkuser',cktype:1,uid:username},
function(data){
$("#_userid").html(data);
}
);
}
}

});
//这幅弹出框的注册
$("#username2").change( function() {
var username = $("#username2").val();
var flag = 1;
var c;
var sEmail = /\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/;

username = username.Trim();

if((username.length!=0)&(username.length<6||username.length>20)){
var str = "<font color='red'><b>×请使用6-20位做用户名！</b></font>";
$("#_userid2").html(str);
$('#username2').focus();
}
else{

var letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890_.@";
for(var i=0;i<username.length;i++){
c = username.charAt(i);
if(letters.indexOf( c ) < 0){
flag = 3;
}
}

if(flag==3){

var str = "<font color='red'><b>×请使用数字字母下划线做用户名！</b></font>";
$("#_userid2").html(str);
$('#username2').focus();

}

if(!sEmail.exec($("#username2").val()))
{
$('#_userid2').html("<font color='red'><b>×Email格式不正确</b></font>");
$('#username2').focus();
}
else{
$.post("/reg/reg.php",{dopost:'checkmail',cktype:1,email:username},function(data){
//alert(data);
if(data == "<font color='#4E7504'><b>√可以使用</b></font>"){

$.post("/reg/reg.php",{dopost:'checkuser',cktype:1,uid:username},function(data){$("#_userid2").html(data);});
}else{
$("#_userid2").html(data);
}

});
}

}

});
//这幅弹出框的注册  结束

$("#email").change( function() {
var sEmail = /\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/;
var email = $("#email").val();
if(!sEmail.exec($("#email").val()))
{
$('#_email').html("<font color='red'><b>×Email格式不正确</b></font>");
$('#email').focus();
}else{
$.post("reg.php",
{dopost:'checkmail',cktype:1,email:email},
function(data){
$("#_email").html(data);
}
);
}
});

$("#mobile").change(function(){

var sMobile =/^1[3|4|5|8][0-9]\d{4,8}/;
var mobile = $("#mobile").val();

mobile = mobile.Trim();

if(mobile.length==0){
$('#_mobile').html("<font color ='red'><b>x手机号不能为空!</b></font>");
}else{
if(!sMobile.exec($("#mobile").val())){
$('#_mobile').html("<font color ='red'><b>x手机号格式不正确</b></font>");
$('#mobile').focus();
}
else{
$('#_mobile').html("<font color='green'><b>√填写正确</b></font>");
}
}
});
$('#userpassword').change( function(){

if($('#userpassword').val()=='')
{
$('#_userpassword').html("<font color='red'><b>请填写密码</b></font>");
}
else if($('#userpassword').val().length < 6)
{
$('#_userpassword').html("<font color='red'><b>×密码不能小于6位</b></font>");
}
else if($('#userpassword').val().length > 20)
{
$('#_userpassword').html("<font color='red'><b>×密码不能大于20位</b></font>");
}
else
{
if($('#repassword').val().length>=6){
if($('#repassword').val()!=$('#userpassword').val())
{
$('#_repassword').html("<font color='red'><b>×两次输入密码不一致</b></font>");
}
}
$('#_userpassword').html("<font color='#4E7504'><b>√填写正确</b></font>");
}

});

$('#repassword').change( function(){

if($('#repassword').val()=='')
{
$('#_repassword').html("<font color='red'><b>请填写确认密码</b></font>");
}
else if($('#repassword').val().length <6)
{
$('#_repassword').html("<font color='red'><b>×密码不能小于6位</b></font>");
}
else if($('#repassword').val().length >20)
{
$('#_repassword').html("<font color='red'><b>×密码不能大于20位</b></font>");
}
else if($('#repassword').val()!=$('#userpassword').val())
{
$('#_repassword').html("<font color='red'><b>×两次输入密码不一致</b></font>");
}
else
{

$('#_repassword').html("<font color='#4E7504'><b>√填写正确</b></font>");
}

});

});
-->

<script src="/templets/dujiaoshou/js/reg.js" type="text/javascript"></script>

<form id="regUser" name="form2" method="post" action="reg.php" target="_self">
<div class="mainBox_border1 clearfix area01">
<input type="hidden" name="dopost" value="save" />
<!--<div class="liucheng01 mt10"></div>-->
<table  cellspacing="0" cellpadding="0" border="0" class="zctab">
<tbody>
<tr>
<td colspan="3">以下<span class="red">*</span>为必填项</td>
</tr>
<tr>
<td width="162" class="textR"><span class="f14">用 户 名</span>：</td>
<td width="188"><input type="text" name="username" id="username" class="txtInput"></td>
<td width="350" class="color999" style="line-height:16px;"><span class="red">*</span><span id="_userid">6-20个字符（可以为字母、数字或下划线'_'，不能包含空格），一旦注册成功用户名不能修改。</span></td>
</tr>
<tr>
<td class="textR"><span class="f14">电子邮件</span>：</td>
<td><input type="text"  name="email" id="email" class="txtInput"></td>
<td valign="middle"><span class="red">*</span><span id="_email"></span></td>
</tr>
<tr>
<td class="textR"><span class="f14">密      码</span>：</td>
<td><input type="password"  name="userpassword" id="userpassword"  value="" class="txtInput"></td>
<td valign="middle" class="color999"><span class="red">*</span><span id="_userpassword">6-20个字符（可以为字母、数字或下划线'_'，不能包含空格）。</span></td>
</tr>
<tr>
<td  class="textR"><span class="f14">密码确认</span>：</td>
<td><input type="password"  name="repassword" id="repassword"  value="" class="txtInput"></td>
<td valign="middle"><span class="red">*</span><span id="_repassword"></span></td>
</tr>
<tr>
<td class="textR"><span class="f14">手机号码</span>：</td>
<td><input type="text"  name="mobile" class="txtInput" id="mobile"></td>
<td class="color999"><span class="red">*</span><span id="_mobile"></span></td>
</tr>
<tr>
<td class="textR"><span class="f14">姓      名</span>：</td>
<td><input type="text"  name="reusername" class="txtInput"></td>
</tr>

<tr>
<td class="textR"><span class="f14">验 证 码</span>：</td>
<td class="clearfix"><input type="text" name="vdcode" id="vdcode" value="" class="fl yxm"><!--img  name="imgCode" src="/templets/dujiaoshou/images/yzm.jpg" /-->
<img id="vdimgck" align="middle"  onclick="this.src=this.src+'?'"  style="cursor: pointer;" title="看不清？点击更换" src="../../include/vdimgck.php"/>
</td>

<td><span class="red">*</span>看不清？<a href="javascript:void(0)" target="_self" onclick="changeAuthCode()">换一张</a></td>
</tr>