addLoadListener(firstLoad);
addLoadListener(activateCovers);

function firstLoad() {
	deActivateCovers();
	var randomnumber = (Math.floor(Math.random() * 3)) + 1;
	document.getElementById('home' + randomnumber + '_img').className = 'active';
	document.getElementById('home' + randomnumber).className = 'active';
}

function activateCovers() {
	var homePageMenu = document.getElementById('homepage_menu');
	var homePageItems = homePageMenu.getElementsByTagName('a');
	
	for (i=0; i < homePageItems.length; i++) {
		homePageItems[i].onclick = function() {
			deActivateCovers();
			
			var thisItem = this.id;
			document.getElementById(thisItem).className = 'active';
			
			var thisImage = this.id + "_img";
			document.getElementById(thisImage).className = '';
			return false;
		}
	}
}

function deActivateCovers() {
	var homePageMenu = document.getElementById('homepage_menu');
	var homePageItems = homePageMenu.getElementsByTagName('a');
	
	for (i=0; i < homePageItems.length; i++) {
		var thisItem = homePageItems[i].id;
		document.getElementById(thisItem).className = '';
		
		var thisImage = homePageItems[i].id + "_img";
		document.getElementById(thisImage).className = 'inactive';
	}
}