$(document).ready(function(){
   $('.mlp_container .mlp_button img').hover(
         function(event){
            $(this).attr('src','/images/web_live/barra/ar_hover2.png');
         },function(event){
            $(this).attr('src','/images/web_live/barra/ar.png');
         });
   $('.mlp_container .mlp_button img').toggle(
         function(eventObj){
            if($('.mlp_dx').outerHeight() > 400){
               $('.mlp_content').animate({'right':0}, "slow");
            } else {
               $('.mlp_content').animate({'right':-17},"slow");
            }
         },function(eventObj){
            $('.mlp_content').animate({'right':-317},"fast");
         });
});