function checkFields() {
   missinginfo = "";
   
   
      if(document.loginform.username.value == "")
	  {
      missinginfo += "\n     -  Username \n";
   }
   if(document.loginform.password.value == ""){
      missinginfo += "\n     -  Password \n";

   }
 
   
   if (missinginfo != "") {
     missinginfo ="________________________________       \n" +
     "You forgot to fill in your:\n" +
     missinginfo + "\n________________________________" +
     "\nPlease correct your mistake and \nclick the login button again.";
     alert(missinginfo);
     return false;
    }
     else {return true}
}