$(document).ready(function () {
    $('img.menu_class').mouseenter(function () {

		if ( $('ul.the_menu').css("display","none") ) {
			$('ul.the_menu').slideToggle('medium');
		} else {
	
		}
    });

    $('ul.the_menu').mouseleave(function () {
			$('ul.the_menu').slideToggle('medium');			
    });

});