// JavaScript Document
 $(document).ready(function(){  
     //When mouse rolls over  
     $(".mainnav").mouseover(function(){  
         $(this).stop(true, false).animate({height:'75px'},{queue:false, duration:600, easing: 'easeOutQuint'});
		 
     });  
   
     //When mouse is removed  
     $(".mainnav").mouseout(function(){  
         $(this).stop().animate({height:'50px'},{queue:false, duration:600, easing: 'easeOutQuint'}); 
		   
     });  
   
 });