function AddUserIDFilter($sFilter)
 {
     global $Security;
     $sFilterWrk = "";
     $id = CurrentPageID() == "list" ? $this->CurrentAction : CurrentPageID();
     if (!$this->UserIDAllow($id) && !$Security->IsAdmin()) {
         $sFilterWrk = $Security->UserIDList();
         if ($sFilterWrk != "") {
             $sFilterWrk = '`id_usuario` IN (' . $sFilterWrk . ')';
         }
     }
     // Call User ID Filtering event
     $this->UserID_Filtering($sFilterWrk);
     ew_AddFilter($sFilter, $sFilterWrk);
     return $sFilter;
 }
<?php

if (CurrentPageID() == 'login') {
    ?>

<style>

	#ewMenuRow, #ewMobileMenu{
		display: none;
	}

</style>

<?php 
}
?>