function LoginForm(theform)
{
var tt="";
var regW =/\W/;
var regEmail =/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/;
  if(theform.username.value.length < 5){tt=tt+"1) 用户名不正确。\n";}
  if(theform.UserMail.value.length < 5){tt=tt+"2) 请输入正确的邮箱。\n";}
  if (!regEmail.test(theform.UserMail.value)){tt=tt+"2) 请输入正确的邮箱格式[ xxx@xxx.com ]!\n"}
  if(theform.UserMa.value.length !=5){tt=tt+"3) 请输入正确的验证码。\n";}
   if (tt.length<=0){
       return true;
   }else{
       tt="请输入正确的用户资料\n\n"+tt;
       alert(tt); 
       return false;
   } 
}
function LoginForm1(theform)
{
var tt="";
var regW =/\W/;
  if(theform.username.value.length < 5){tt=tt+"1) 用户名不正确。\n";}
  if(theform.UserMail.value.length < 1){tt=tt+"2) 请输入答案。\n";}
  if(theform.UserMa.value.length !=5){tt=tt+"2) 请输入正确的验证码。\n";}
   if (tt.length<=0){
       return true;
   }else{
       tt="请输入正确的登录资料\n\n"+tt;
       alert(tt); 
       return false;
   } 
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
function magetgif(){
     document.getElementById('ma2').innerHTML=unescape('<img src=UserGIF.aspx?n='+Math.random()+' width=70 height=30>');
}
function GetUserID(){//用户名验证
var regW =/\W/;
if (!regW.test(document.RetrieveForm.username.value) && document.RetrieveForm.username.value.length>5) {
	var okok;
	var xmlhttp=new objXMLHttp();
	if (xmlhttp){
	xmlhttp.open("get","User_Retrieve.aspx?userid="+document.RetrieveForm.username.value+"&n="+Math.random(),true);
	document.getElementById('userok').innerHTML=unescape("<img src=images/Register/loading.gif><span class=f2>检测帐号中...</span>");
	xmlhttp.onreadystatechange=function(){
	if (xmlhttp.readyState==4&&xmlhttp.status==200){
		   if (unescape(xmlhttp.responseText)=="" ){
                document.getElementById('userok').style.display='';
                document.getElementById('userok').innerHTML=unescape("<img src=images/Register/icon_warn.gif> <span class=f2>帐号不存在。</span>")
                return true;
           }else{
                document.getElementById('question').style.display='';
                document.getElementById('userok').style.display='';
                document.getElementById("userok").innerHTML=unescape("<img src=images/Register/icon_ok.gif> <span class=f1>填写正确。</span>");
                document.getElementById("questionvalue").innerHTML=unescape(xmlhttp.responseText);
                return false;
		   }
	}
	}
	xmlhttp.send(null);					
	}           
}else{
           document.getElementById("userok").innerHTML=unescape("<img src=images/Register/icon_warn.gif> <span class=f2>6-50个字符。</span>")
           return false;
}
}
if (unescape(Request("a"))=="1"){
     document.write('<form action="PostLogin.aspx?action=RetrievePwd1" onsubmit="return LoginForm(this);" method=post name=RetrieveForm>')
     document.write('<div class=s1><img src="images/Login/Retrieve_top.gif" border=0></div>')
     document.write('<div class=s2>')
     document.write('<div class=s21><img src="images/Login/Retrieve1.gif" border=0></div>')
     document.write('<div class=s22>')
     document.write('<div class=p1>登录用户名:<span><input type=text name=username class=input1></span></div>')
     document.write('<div class=p1>　注册邮箱:<span><input type=text name=UserMail class=input1></span></div>')
     document.write('<div class=p1>　　验证码:<span><input type=text name=UserMa class=input4></span></div>')
     document.write('<div class=p2><span id=ma2></span><p class=f4 onmouseover="this.className=\'f3\'" onmouseout="this.className=\'f4\'" onclick="magetgif()">更换验证码</p></div>')
     document.write('</div>')
     document.write('<div class=p1><input type=image src="images/Login/S5.gif"></div>')
     document.write('<div class=p1><a href="RetrievePwd.html?a=1">通过注册邮箱找回</a><a href="RetrievePwd.html">通过密保方式找回</a></div>')
     document.write('<div>如果您无法通过上述方法修复密码，请您和本站客服中心联系。</div>')
     document.write('</div>')
     document.write('<div><img src="images/Login/Retrieve_bot.gif" border=0></div>')
     document.write('</form>')
     magetgif();
}else{
     document.write('<form action="PostLogin.aspx?action=RetrievePwd2" onsubmit="return LoginForm1(this);" method=post name=RetrieveForm>')
     document.write('<div class=s1><img src="images/Login/Retrieve_top.gif" border=0></div>')
     document.write('<div class=s2>')
     document.write('<div class=s21><img src="images/Login/Retrieve1.gif" border=0></div>')
     document.write('<div class=s22>')
     document.write('<div class=p1>登录用户名:<span><input type=text name=username class=input1 onblur="GetUserID()"><span id=userok></span></span></div>')
     document.write('<div id=question style="DISPLAY: none"><div class=p1>　密保问题:<span id=questionvalue></span></div></div>')
     document.write('<div class=p1>　回答答案:<span><input type=text name=UserMail class=input1></span></div>')
     document.write('<div class=p1>　　验证码:<span><input type=text name=UserMa class=input4></span></div>')
     document.write('<div class=p2><span id=ma2></span><p class=f4 onmouseover="this.className=\'f3\'" onmouseout="this.className=\'f4\'" onclick="magetgif()">更换验证码</p></div>')
     document.write('</div>')
     document.write('<div class=p1><input type=image src="images/Login/S5.gif"></div>')
     document.write('<div class=p1><a href="RetrievePwd.html?a=1">通过注册邮箱找回</a><a href="RetrievePwd.html">通过密保方式找回</a></div>')
     document.write('<div>如果您无法通过上述方法修复密码，请您和本站客服中心联系。</div>')
     document.write('</div>')
     document.write('<div><img src="images/Login/Retrieve_bot.gif" border=0></div>')
     document.write('</form>')
     magetgif();
}