//dynamic navigation
initNav = function() {
	if (document.all && document.getElementById) 
	{
		var navRoot = document.getElementById("sections");
		var lis = navRoot.getElementsByTagName("div");
		
		for (var i=0; i<lis.length; i++)
		{
			if (lis[i].className.indexOf("column") != -1){
				lis[i].onmouseover = function()
				{
					if (this.className.indexOf("hover") == -1)
					{
						this.className += " hover";
					}
				}
				lis[i].onmouseout = function()
				{
					this.className = this.className.replace("hover", "");
				}
			}
		}
	}
}
if (document.all && window.attachEvent)
	attachEvent("onload", initNav);