$(document).ready(function(){  

//When mouse rolls over  
$("#navigation li").mouseover(function(){  
$(this).stop().animate({height:'85px'},{queue:false, duration:500, easing: 'easeOutBounce'})  
});  
   
//When mouse is removed  
$("#navigation li").mouseout(function(){  
$(this).stop().animate({height:'66px'},{queue:false, duration:500, easing: 'easeOutBounce'})  
});  
   
});