regformchk.asp

本源代码为大学生购物网的源代码,欢迎大家的下载,学习与交流

<script language="javascript">
<!--
function check_null()
{
if (form1.user_name.value=="")
{
alert("HI：请输入用户名");
form1.user_name.focus();
return false;
}
if (form1.user_name.value.length < 2)
{
alert("HI：用户名至少2位");
form1.user_name.focus();
return (false);
}
if (form1.password1.value=="")
{
alert("HI：请输入密码");
form1.password1.focus();
return false;
}
if (form1.password1.value.length < 4)
{
alert("HI：密码至少四位");
form1.password1.focus();
return false;
}
if (form1.password2.value=="")
{
alert("HI：请输入重复密码");
form1.password2.focus();
return false;
}
if (form1.password2.value.length < 4)
{
alert("HI：重复密码至少四位");
form1.password2.focus();
return false;
}
if (form1.user_qq.value=="")
{
alert("HI：请输入oicq");
form1.user_qq.focus();
return false;
}
if (form1.user_qq.value.length < 4)
{
alert("HI：您的oicq号码过短，将影响您在网站的虚拟形象");
form1.user_qq.focus();
return (false);
}
if (form1.user_qq.value.length > 12)
{
alert("HI：您的oicq号码过长，将影响您在网站的虚拟形象");
form1.user_qq.focus();
return (false);
}
if (form1.user_email.value=="")
{
alert("HI：请输入mail地址");
form1.user_email.focus();
return false;
}
if (form1.user_email.value.length > 30)
{
alert("HI：邮件地址不能超过30个字符");
form1.user_email.focus();
return (false);
}
if(form1.user_email.value.length!=0)
{
if (form1.user_email.value.charAt(0)=="." ||        
form1.user_email.value.charAt(0)=="@"||       
form1.user_email.value.indexOf('@', 0) == -1 || 
form1.user_email.value.indexOf('.', 0) == -1 || 
form1.user_email.value.lastIndexOf("@") ==form1.user_email.value.length-1 || 
form1.user_email.value.lastIndexOf(".") ==form1.user_email.value.length-1)
{
alert("HI：只有正确的邮件地址才能获得本站相应服务");
form1.user_email.focus();
return false;
}
}
if (form1.user_realname.value=="")
{
alert("HI：请输入真实姓名");
form1.user_realname.focus();
return false;
}
return true;
}
//-->
</script>