navigation_open = false;

 $(document).ready(function(){
   $('#navigate').click(function(event) {
     if (!navigation_open) {
       $(document.body).animate({backgroundPosition: '0 0px'});
       $("#header").animate({height:172});
       $("#main_menu_outer").animate({marginTop:0});
     } else {
       $(document.body).animate({backgroundPosition: '0 -172px'});
       // $(document.body).css({backgroundPosition: '0 0'});

       $("#header").animate({height:0});
       $("#main_menu_outer").animate({marginTop:-172});
     }
     navigation_open = !navigation_open;
   });
   $('#music .button').hover(
     function() {
       current_left = $(this).position().left-6;
       // alert(current_left);
       $('#music').css('backgroundPosition', current_left + 'px 0');
     },
     function() {
       $('#music').css('backgroundPosition', '-1000px 0');
     }
   );
 });

 $().ready(function() {
  $('#dialog').jqm();
});