// JavaScript Document

window.addEvent( 'domready' ,  function() {
        $('drop_down_menu').getElements('li.menu').each( function( elem ){
                elem.getChildren('ul').setStyle('display','none');
                elem.addEvent( 'mouseenter' ,  function()
                {
                    this.getChildren('ul').setStyle('display','block');
                });
                elem.addEvent( 'mouseleave' ,  function()
                {
                    this.getChildren('ul').setStyle('display','none');
                });
        });

});