用户注册页面问题求指点啊

reg.php
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link href="css/css.css" rel="stylesheet" type="text/css">
<title>用户注册</title>
</head><body>
<script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
<script type="text/javascript" src="js/ajaxlist.js"></script><script>
function check(){
checkUserName_1('username','16','unamespan')

}
</script>
<table align="center">
     <tr>
         <td width="61" height="100"> </td>
        </tr>
     <tr>
         <td>用户名：</td>
            <td width="254"><input onblur="checkUserName_1('username','16','unamespan')" onfocus="onFouces('unamespan')" name=username keytype2="uname" class="input_txt" keytype="1" style="height:22px; width:222px" /><strong><font color="#FF0000">*</font> </strong></td>
            <td width="426"><span class=gray id=unamespan>3-16个字符</span></td>
        </tr>
        <tr>
         <td>密 码：</td>
            <td width="254"><input onblur="checkpw_1('password','6','upw')" onfocus="onFocus('upw')" class="input_txt" type=password keytype2="pw" name=password keytype="1" style="height:22px; width:222px" /><strong><font color="#FF0000">*</font> </strong></td>
            <td width="426"><span class=gray id=upw>6-16个字符</span></td>
        </tr>
         <tr>
         <td>确认密码：</td>
            <td width="254"><input onblur="checkSame_1('password','passsAgain','urpw')" onfocus="onFocus('urpw')" class="input_txt" type=password keytype2="rpw" name=passAgain keytype="1" style="height:22px; width:222px" /><strong><font color="#FF0000">*</font> </strong></td>
            <td width="426"><span class=gray id=urpw>再次输入密码</span></td>
        </tr>

    </table>
</body>
</html>

ajaxlist.js
var username_help='3-16个字符（a-z，0-9，_）';
var username_ok='<img src=img/OK.png align=absbottom>用户名可以使用';
var username_error='<img src=img/NO.png align=absbottom> 用户名超过了16个字符！';
var username_error_1='<img src=img/NO.png align=absbottom> 您的用户名输入格式不正确！';
var username_exist='<img src=img/NO.png align=absbottom> 您填写的用户名已经存在！';
var username_null='<img src=img/NO.png align=absbottom> 用户名长度最少3位！';
function getHTTPObject(){
var xmlhttp = false;
if(window.XMLHttpRequest){
xmlhttp = new XMLHttpRequest();
if(xmlhttp.overrideMimeType){
xmlhttp.overrideMimeType('text/xml');
}
}else{
try{
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}catch(e){
try{
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}catch(E){ xmlhttp = false; }
}
}
return xmlhttp;
} var http = getHTTPObject(); function getAbsLeft(e){
var l=e.offsetLeft;
while(e=e.offsetParent) l += e.offsetLeft;
return l;
}
function getAbsTop(e) {
var t=e.offsetTop;
while(e=e.offsetParent) t += e.offsetTop;
t=t+18;
return t;
} //...............................................................
function onFouces(str){
document.getElementById(str).className='word_help';
if(str=='unamespan'){
document.getElementById(str).innerHTML=username_help;
}
}function backState(str){
if(str=='uname'){
document.getElementById('username').keytype=0;
document.getElementById('unamespan').className='gray';
document.getElementById('unamespan').innerHTML=username_ok;
}
}
function checkUserName_1(obj_str,num,obj_strl){
var obj=document.getElementById(obj_str);
var obj_help=document.getElementById(obj_strl);
obj.keytype=0;
if(obj.value.length<3){
obj.keytype=1;
obj_help.innerHTML=username_null;
obj_help.className=word_error;
return false;
}
if(obj.value.length>num){
obj.keytype=1;
obj_help.innerHTML=username_error;
obj_help.className=word_error;
return false;
}

//检查是否有不符合规定的字符
var name_str=obj.value;
//name_str=name_str.replace(/[\u4e00-\u9fa5]/g,'');
name_str=name_str.replace(/[a-zA-Z0-9_]/g,'');
name_str=name_str.replace(/-/g,'');
if(name_str!=''){
obj.keytype=1;
obj_help.innerHTML=username_error_1;
obj_help.className=word_error;
return false;
}

//检测用户名是否存在
var username = document.getElementById('username').value;
url = "checkuserreg.php?username="+username;
http.open("GET",url,true);
http.onreadystatechange = handleHttpResponseForUserName_1;
http.send(null);

if(obj.keytype==0){
backState("uname");
}
}function handleHttpResponseForUserName_1(){
if(http.readyState == 4){
if (http.status == 200) {
returnStr=Trim(http.responseText);
if(returnStr=="1"){
var obj_1=document.getElementById("unamespan");
obj_1.innerHTML=username_exist;
document.getElementById("username").keytype=1;
obj_1.className=word_error;
return false;
}
}
}
}
function Trim(str) {
return RTrim(LTrim(str));
}
function LTrim(str) {
return str.replace(/^[ \t\n\r]+/g, "");
} function RTrim(str) {
return str.replace(/[ \t\n\r]+$/g, "");
}

<?php
header('ontent-Type:text/html;charset=GB2312');//避免输出乱码
$dbhost     ="localhost";
$dbuser     ="root";
$dbpassword = "root";
mysql_connect($dbhost,$dbuser,$dbpassword) or die("error!");
mysql_query("set names 'gbk'");
mysql_select_db('db_text');$username=trim($_GET['username']);//获取注册名
$sql="select username from tb_user where username='".$username."'";//查询会员名
$result=mysql_query($sql);
$num=mysql_num_rows($result);
$rows=mysql_fetch_array($result);
if($num<>0){
          echo "1";
}
else{
          echo "0";
}
mysql_close();//关闭数据库连接
?>

你的username input 框没有id值，能运行成功吗？if(obj.value.length<3){
        obj.keytype=1;
        obj_help.innerHTML=username_null;
        obj_help.className=word_error;
        obj.focus();    //加上这句，下面的验证类似。
        return false;
    }

噢，你是不合法（用户已存在）时返回 1
function handleHttpResponseForUserName_1(){
    if(http.readyState == 4){
        if (http.status == 200) {
        returnStr=Trim(http.responseText);
            if(returnStr=="1"){
                var obj_1=document.getElementById("unamespan");
                obj_1.innerHTML=username_exist;
                document.getElementById("username").keytype=1;
                obj_1.className=word_error;
               document.getElementById("username").focus(); // 加上这个
                return false;
            }
        }
    }
}

在 returnStr=Trim(http.responseText); 后面加上
alert(returnStr + ':' + returnStr.length);
看看有什么

突然发现你有用 jquery
<script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>那么还要自己写那些做什么？
建议你改写成直接用 jquery 的，简单的例子<script>
$(function() {
  $('#username').blur(function() {
    $.post('check.php', {username:$(this).val()}, function(m) {
      $('#unamespan').html(m == 1 ? '不可用' : '可用');
      if(m == 1) $('#username').focus();
    });
  });
});
</script>
数字打头不可用，字母打头可用<br>
用户名：<input name=username id=username class="input_txt"style="height:22px; width:222px" />
<span class=gray id=unamespan>3-16个字符</span><br>
check.php<?php
echo is_numeric($_POST['username']{0}) ? 1 : 0;
是不是很简单呢？

调试易

用户注册页面问题求指点啊

解决方案 »

用户注册页面问题 求指点啊

解决方案 »

用户注册页面问题求指点啊