$(document).ready(function()
{
	
  $("#page_nav ul li").hoverIntent({
	sensitivity: 3, 
	interval: 100, 
	over: makeTall, 
	timeout: 300, 
	out: makeShort
  });

  function makeTall() {
	
	$(this).addClass("menu_show");
	
  }
  
  function makeShort() {
    $(this).removeClass("menu_show");

  }
 
});