function slide(navigation_id,  multiplier)  
   {  
		var list_elements = navigation_id + " li";  
		var link_elements = list_elements + " a";
		var bobbing;

$(link_elements).each(function(i)  
{  
	$(this).hover(  
	function()  
	{  
		if(bobbing == false){
			$(this).animate({ marginTop: "-3px"}, 300);
			bobbing = true;
		}
	},        
	
	
	function()  
	{  
		$(this).animate({ marginTop: "3px"}, 300);
		bobbing = false;
	});  
	});  
}  

$(document).ready(function()  
{  
	slide('#top-nav', 0);  
});