function setMenuItem() {
	if (!document.getElementsByTagName) return;
		
	var mainMenu = document.getElementById('main-menu');
	var menuItems = mainMenu.getElementsByTagName("li");
	var URL = window.location.toString();
	var currentSection = "root";
	
	if (URL.indexOf('/current/') != -1) {
		currentSection = "current";
	} else if (URL.indexOf("/upcoming/") != -1) {
		currentSection = "upcoming";
	} else if (URL.indexOf("/discussion/") != -1) {
		currentSection = "discussions";
	} else if (URL.indexOf("/indexes/") != -1) {
		currentSection = "indexes";
	} else if (URL.indexOf("/resources/") != -1) {
		currentSection = "resources";
	} else if (URL.indexOf("/subscribe/") != -1) {
		currentSection = "subscribe";
	} else if (URL.indexOf("/staff/") != -1) {
		currentSection = "staff";
	} else if (URL.indexOf("/info/") != -1) {
		currentSection = "info";
	}

	// loop through all the menu items to find the corresponding one
	for (var i=0; i<menuItems.length; i++) {
		var menuItem = menuItems[i];
		var anchors = menuItem.getElementsByTagName("a");
		
		if (menuItem.className == currentSection) {
			anchors[0].className = "at";
	 	} else {
			anchors[0].removeAttribute('class');
		}
	}
}

$(document).ready(function(){
	setMenuItem();				   
});