function auth2preSubmit(_form){
	 
  var _user = _form.u.value.toLowerCase();
  var _pass = _form.p.value;
  var _ask = _form.a.value;
  
  if(_user==""){
	  alert("user name field is empty!");  // HARD TYPED VERBOSE MESSAGE
		_form.u.focus();
	  return false ;
	}
	
	if(_pass==""){
	  alert("password field is empty!");  // HARD TYPED VERBOSE MESSAGE
		_form.p.focus();
	  return false ;
	}
	
  var _key = hex_md5(hex_md5(_user + ":" + _pass) + _ask);
  _form.p.value = _ask.slice(0,_pass.length);
  _form.k.value = _key;
  toggleBlockElement('loader-login');
	  
  return true;
}
 

function auth2onChangeP(_form){
	 
  var _user = _form.u.value.toLowerCase();
  var _pass = _form.p.value;
  var _ask  = _form.a.value;
  		
  var _key = hex_md5(hex_md5(_user + ":" + _pass) + _ask);
  _form.k.value = _key;
}