function chk()
{
if(window.Review.rusername.value=="")
{
alert('嘻嘻,留下您的大名吧！谢谢！');
window.Review.rusername.focus();
return false;
}


if(window.Review.rusername.value.length<2 || window.Review.rusername.value.length>10)
{
alert('用户名不能少于2字节或多于10字节！谢谢！');
window.Review.rusername.focus();
return false;
}


if(window.Review.remail.value=="")
{
alert('唉，你的Email呢?');
window.Review.remail.focus();
return false;
}

if(window.Review.remail.value.indexOf("@")==-1){
alert('请输入你的正确E-mail，必须包括“@”!');
window.Review.remail.focus();
return false;
}
tempmsg=window.Review.remail.value.substring(0,window.Review.remail.value.indexOf("@"));
if(tempmsg.length<3){
alert('请输入你的完整的E-mail!\"@\"前面的字符长度不能小于3位！');
window.Review.remail.focus();
return false;
}



if(window.Review.rword.value=="")
{
alert('请告诉我您想说什么好吗?谢谢！');
window.Review.rword.focus();
return false;
}

if(window.Review.rword.value.length<5)
{
alert('对不起，评论内容过少，系统不接受！\n评论内容不能少于5个字节,谢谢!');
window.Review.rword.focus();
return false;
}
}




function chk2(){
var user = document.theform.poster.value
var from = document.theform.email.value
var title = document.theform.title.value
var content = document.theform.content.value
if (user==""){
alert("哈哈,您的大名呢?");
document.theform.poster.focus();
return false;
}


if(document.theform.poster.value.length<2 || document.theform.poster.value.length>10)
{
alert('用户名不能少于2字节或多于10字节！谢谢！');
document.theform.poster.focus();
return false;
}

if (from.indexOf('@', 0) == -1 || from.indexOf('.', 0) == -1){ 
alert("E-mail address不正确!");
document.theform.email.focus();
return false;
                        
                }

if (title==""){
alert("标题不能为空!")
document.theform.title.focus()
return false
}

if (content==""){
alert("内容不能为空!");
document.theform.content.focus();
return false;
}				
	
}








function ChkAdmin()
{
if(window.AdminLogin.AdminName.value=="")
{
alert('对不起，请您输入登录帐号！');
window.AdminLogin.AdminName.focus();
return false;
}


if(window.AdminLogin.AdminName.value.length<2 || window.AdminLogin.AdminName.value.length>10)
{
alert('帐号不能少于2字节或多于10字节！谢谢！');
window.AdminLogin.AdminName.focus();
return false;
}

if(window.AdminLogin.Password.value=="")
{
alert('请输入登录密码！谢谢！');
window.AdminLogin.Password.focus();
return false;
}

if(window.AdminLogin.verifycode.value=="")
{
alert('请输入登录验证码！谢谢！');
window.AdminLogin.verifycode.focus();
return false;
}

}




function ChkBBS()
{
if(window.BBSLogin.inmembername22.value=="")
{
alert('对不起，请您输入登录帐号！');
window.BBSLogin.inmembername22.focus();
return false;
}


if(window.BBSLogin.inmembername22.value.length<2 || window.BBSLogin.inmembername22.value.length>10)
{
alert('帐号不能少于2字节或多于10字节！谢谢！');
window.BBSLogin.inmembername22.focus();
return false;
}

if(window.BBSLogin.inpassword22.value=="")
{
alert('请输入登录密码！谢谢！');
window.BBSLogin.inpassword22.focus();
return false;
}


}









function ChkUser()
{
if(window.UserLogin.username.value=="")
{
alert('对不起，请您输入登录帐号！');
window.UserLogin.username.focus();
return false;
}


if(window.UserLogin.username.value.length<2 || window.UserLogin.username.value.length>10)
{
alert('帐号不能少于2字节或多于10字节！谢谢！');
window.UserLogin.username.focus();
return false;
}

if(window.UserLogin.password.value=="")
{
alert('请输入登录密码！谢谢！');
window.UserLogin.password.focus();
return false;
}


}