var J = jQuery.noConflict();
J(document).ready(function(){

    //When mouse rolls over
    J( "#navigation-main li").mouseover(function(){
        J(this).stop().animate({height:'100px'},{queue:false, duration:600, easing: 'easeInOutCirc'})
    });

    //When mouse is removed
    J("#navigation-main li").mouseout(function(){
        J(this).stop().animate({height:'20px'},{queue:false, duration:600, easing: 'easeOutBounce'})
    });

});