menuItems = document.getElementById("mainnav").getElementsByTagName("div");

for(i=0;i < menuItems.length; i++)
{
	menuItems[i].onmouseover = function ()
	{
		this.className = "item hover";
		this.getElementsByTagName("span")[0].style.display = "block";
	}
	
	menuItems[i].onmouseout = function ()
	{
		this.className = "item";
		this.getElementsByTagName("span")[0].style.display = "none";
	}
}