function loginchk()
{
  if (login.AdminName.value=="")
  {
    alert("请输入管理员名称！");	
    login.AdminName.focus();
    return false;
  }  
  if (login.AdminPass.value=="")
  {
    alert("请输入管理员密码！");	
    login.AdminPass.focus();
    return false;
  } 
}

function usrchk()
{
  if (usr.UserName.value=="")
  {
    alert("请输入用户名称！");	
    usr.UserName.focus();
    return false;
  }  
  if (usr.UserPass.value=="")
  {
    alert("请输入用户密码！");	
    usr.UserPass.focus();
    return false;
  }
}

function usrenchk()
{
  
  if (usr.UserName.value=="")
  {
    alert("Please enter UserName");	
    usr.UserName.focus();
    return false;
  }  
  if (usr.UserPass.value=="")
  {
    alert("Please enter UserPass");	
    usr.UserPass.focus();
    return false;
  }
}

function regchk()
{
  if (regi.lastname.value=="")
  {
    alert("请输入姓!");	
    regi.lastname.focus();
    return false;
  } 
  if (regi.firstname.value=="")
  {
    alert("请输入名字!");	
    regi.firstname.focus();
    return false;
  }
  if (regi.company.value=="")
  {
    alert("请输入公司!");	
    regi.company.focus();
    return false;
  }
  if (regi.mail.value.length <10 || regi.mail.value.length >=100) {
	  alert("E-mail address/MSN 无效!");
	  regi.mail.focus();
	  return false;
  }
  
  if (regi.mail.value.length > 0 && !regi.mail.value.match( /^.+@.+$/ ) ) {
	  alert("E-mail address/MSN 无效!");
	  regi.mail.focus();
	  return false;
  }
  if (regi.UserName.value=="")
  {
    alert("请输入用户名！");	
    regi.UserName.focus();
    return false;
  }  
  
  if(regi.UserPass1.value=="")
  {
     alert("请输入密码！");
	 regi.UserPass1.focus();	 
	 return false;
  }
  
  if(regi.UserPass2.value=="")
  {
     alert("请输入确认密码！");
	 regi.UserPass2.focus();	 
	 return false;
  }
  
  if(regi.UserPass1.value!=regi.UserPass2.value)
  {
     alert("两次密码输入必须一致！");
	 regi.UserPass1.focus();	 
	 return false;
  }
}

function regenchk()
{
  if (regi.lastname.value=="")
  {
    alert("Please enter LastName!");	
    regi.lastname.focus();
    return false;
  } 
  if (regi.firstname.value=="")
  {
    alert("Please enter FirstName!");	
    regi.firstname.focus();
    return false;
  }
  if (regi.company.value=="")
  {
    alert("Please enter company!");	
    regi.company.focus();
    return false;
  }
  if (regi.mail.value.length <10 || regi.mail.value.length >=100) {
	  alert("E-mail address/MSN is invalidation!");
	  regi.mail.focus();
	  return false;
  }
  
  if (regi.mail.value.length > 0 && !regi.mail.value.match( /^.+@.+$/ ) ) {
	  alert("E-mail address/MSN is invalidation!");
	  regi.mail.focus();
	  return false;
  }
  
  if (regi.UserName.value=="")
  {
    alert("Please enter UserName!");	
    regi.UserName.focus();
    return false;
  }  
  
  if(regi.UserPass1.value=="")
  {
     alert("Please enter password!");
	 regi.UserPass1.focus();	 
	 return false;
  }
  
  if(regi.UserPass2.value=="")
  {
     alert("Please enter confirm password!");
	 regi.UserPass2.focus();	 
	 return false;
  }
  
  if(regi.UserPass1.value!=regi.UserPass2.value)
  {
     alert("password and confirm password different!");
	 regi.UserPass1.focus();	 
	 return false;
  }   
  
}

function feedenchk()
{
  if (regi.firstname.value=="")
  {
    alert("Please enter First name!");	
    regi.firstname.focus();
    return false;
  } 
  if (regi.surname.value=="")
  {
    alert("Please enter Surname!");	
    regi.surname.focus();
    return false;
  }
  if (regi.mail.value.length <10 || regi.mail.value.length >=100) {
	  alert("E-mail address/MSN is invalidation!");
	  regi.mail.focus();
	  return false;
  }
  
  if (regi.mail.value.length > 0 && !regi.mail.value.match( /^.+@.+$/ ) ) {
	  alert("E-mail address/MSN is invalidation!");
	  regi.mail.focus();
	  return false;
  }  
  
}

function feedcnchk()
{
  if (regi.firstname.value=="")
  {
    alert("请输入名字!");	
    regi.firstname.focus();
    return false;
  } 
  if (regi.surname.value=="")
  {
    alert("请输入呢称!");	
    regi.surname.focus();
    return false;
  }
  if (regi.mail.value.length <10 || regi.mail.value.length >=100) {
	  alert("E-mail/MSN 无效!");
	  regi.mail.focus();
	  return false;
  }
  
  if (regi.mail.value.length > 0 && !regi.mail.value.match( /^.+@.+$/ ) ) {
	  alert("E-mail/MSN 无效!");
	  regi.mail.focus();
	  return false;
  }
    
}