function trim(str){ //删除左右两端的空格
return str.replace(/(^\s*)|(\s*$)/g, “”);
}
function reg_name_fun(tag)
{
var msg = document.getElementById(“reg_name_span”);
var name = trim(tag.value);
if(name == “”)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />用户名不能为空！”;
}
else if(name.length < 6)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />用户名不能少于六个字符！”;
}
else
{
msg.innerHTML = “<img src=’images/icon_ok.gif’ />用户名可用！”;
}
}
function reg_password_fun(tag)
{
var msg = document.getElementById(“reg_password_span”);
var pw1 = trim(tag.value);
if(pw1 == “”)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />密码不能为空！”;
}
else if(pw1.length < 6)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />密码不能少于六个字符！”
}
else
{
msg.innerHTML = “<img src=’images/icon_ok.gif’ />”;
}
window.pw_v = pw1;
}
function reg_password2_fun(tag)
{
var msg = document.getElementById(“reg_password2_span”);
var pw2 = trim(tag.value);
if(pw2 == “”)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />密码不能为空！”;
}
else if(pw2 !== pw_v)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />两次输入的密码不一致”
}
else
{
msg.innerHTML = “<img src=’images/icon_ok.gif’ />”;
}
}
function reg_tel_fun(tag)
{
var msg = document.getElementById(“reg_tel_span”);
var myreg = /^(?:13\d|15[89])-?\d{5}(\d{3}|\*{3})$/; //正则表达式，手机验证。
var tel = trim(tag.value);
if(tel == “”)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />手机不能为空！”;
}
else if(tel.length !== 11)
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />请填写完整手机号码！”;
}
else if(!myreg.test(tel))
{
msg.innerHTML = “<img src=’images/icon_error.gif’ />手机号码格式错误！”;
}
else
{
msg.innerHTML =”<img src=’images/icon_ok.gif’ />”;
}
}
function reg_mail_fun(the)
{
var mail = document.getElementById(“reg_mail_span”);
var myreg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/; //正则表达式，邮箱验证。
if(the.value == “”)
{
mail.innerHTML =”<img src=’images/icon_error.gif’ />邮箱不能为空！”;
}
else if(!myreg.test(the.value))
{
mail.innerHTML = “<img src=’images/icon_error.gif’ />邮箱错误！请填写正确邮箱。”;
}
else
{
mail.innerHTML = “<img src=’images/icon_ok.gif’ />”;
}
}
