function checkform(){
		var flag_is_flase = true;
		if(!isNull('email')){
			document.getElementById('email_message').innerHTML = '<input name="email" id="email" type="text" class="input" size="30"><font color="red">(用户名不能为空)</font>';
			flag_is_flase = false;
		}else if(!checkIsEmail('email') && isNull('email')){
			document.getElementById('email_message').innerHTML = '<input name="email" id="email" type="text" class="input" size="30" value="'+document.getElementById('email').value+'"><font color="red">(用户名格式不合法)</font>';
			flag_is_flase = false;
		}else{
			document.getElementById('email_message').innerHTML = '<input name="email" id="email" type="text" class="input" size="30" value="'+document.getElementById('email').value+'">';
		}
		if(!isNull('password')){
			document.getElementById('password_message').innerHTML = '<input name="password" id="password" type="password" class="input" size="30"><font color="red">(密码不能为空)</font>';
			flag_is_flase = false;
		}else{
			document.getElementById('password_message').innerHTML = '<input name="password" id="password" type="password" class="input" size="30" value="'+document.getElementById('password').value+'">';
		}
		if(!isNull('verify')){
			document.getElementById('verify_message').innerHTML = '<input name="verify" id="verify" type="text" class="input" size="30"><font color="red">(验证码不能为空)</font>';
			flag_is_flase = false;
		}else{
			document.getElementById('verify_message').innerHTML = '<input name="verify" id="verify" type="text" class="input" size="30" value="'+document.getElementById('verify').value+'">';
		}
		if(!flag_is_flase){
			return false;
		}
}

function checkform_r(){
	var flag_is_flase = true;
	if(!isNull('email_r')){
		document.getElementById('email_r_message').innerHTML = '<input name="email_r" id="email_r" type="text" class="input" size="30"><font color="red">(我的E-mail不能为空)</font>';
		flag_is_flase = false;
	}else if(!checkIsEmail('email_r') && isNull('email_r')){
		document.getElementById('email_r_message').innerHTML = '<input name="email_r" id="email_r" type="text" class="input" size="30" value="'+document.getElementById('email_r').value+'"><font color="red">(我的E-mail不合法)</font>';
		flag_is_flase = false;
	}else{
		document.getElementById('email_r_message').innerHTML = '<input name="email_r" id="email_r" type="text" class="input" size="30" value="'+document.getElementById('email_r').value+'">';
	}
	if(!checkPasswordSame("email_r","email_r_confirm")){
		document.getElementById('email_r_confirm_message').innerHTML = '<input name="email_r_confirm" id="email_r_confirm" type="text" class="input" size="30" value="'+document.getElementById('email_r_confirm').value+'"><font color="red">(两次输入E-mail不一致)</font>';
		flag_is_flase = false;
	}else{
		document.getElementById('email_r_confirm_message').innerHTML = '<input name="email_r_confirm" id="email_r_confirm" type="text" class="input" size="30" value="'+document.getElementById('email_r_confirm').value+'">';
	}
	if(!isNull('password_r')){
		document.getElementById('password_r_message').innerHTML = '<input name="password_r" type="password" class="input" size="30"><font color="red">(密码不能为空)</font>';
		flag_is_flase = false;
	}else{
		document.getElementById('password_r_message').innerHTML = '<input name="password_r" type="password" class="input" size="30" value="'+document.getElementById("password_r").value+'">';
	}
	if(!checkPasswordSame("password_r","password_r_confirm")){
		document.getElementById('password_r_confirm_message').innerHTML = '<input name="password_r_confirm" type="password" class="input" size="30"><font color="red">(两次输入的密码不一致)</font>';
		flag_is_flase = false;
	}else{
		document.getElementById('password_r_confirm_message').innerHTML = '<input name="password_r_confirm" type="password" class="input" size="30" value="'+document.getElementById('password_r_confirm').value+'">';
	}
	if(!flag_is_flase){
		return false;
	}
}