public function verifyLdapUser($username,$password)
    {

        $DomainName=LDAPDOMAIN; // name = domain
        $ldap_server=LDAP; // server = ldap://doman.co
        // returns true when user/pass binds to LDAP/AD.
        $auth_user=$username."@".$DomainName;

        //Check to see if LDAP module is loaded.
       	if (extension_loaded('ldap')) {

           	if($connect=@ldap_connect($ldap_server)){

	        	//echo "connection ($ldap_server): ";
	            if($bind=@ldap_bind($connect, $auth_user, $password)){

	            	//echo "true <BR>";
	                @ldap_close($connect);
	                return true;
	            } else {
	               	//send error message - password incorrect

	            	@ldap_close($connect);
	               	return false;
	            }
            }
        } else {
           	//send message - could not connect to domain
           	@ldap_close($connect);
           	return false;
        }
        // send message - ldap module not loaded

        @ldap_close($connect);
        return(false);
    }//end function verifyLdapUser