$(document).ready(function(){
    
    $('.all_art_list #point a').click(function(){
    var speed=300;
        
    if($('.all_art_list .list').css('display')=='none') {
       $('.all_art_list .list').slideDown(speed);
        $('.all_art_list #point').attr('class','do');
    } else {
       $('.all_art_list .list').slideUp(speed);
        $('.all_art_list #point').attr('class','up');
    }   
        
     return false;   
    });
    
});