(function() {
	var load = function() {
		var click = function(e) {
			e = e || window.event;
			var target = e.target || e.srcElement,
				tabs = document.getElementById('tabs'),
				listItems = tabs.getElementsByTagName('li'),
				anchors = tabs.getElementsByTagName('a'),
				div, id,
				i = anchors.length;
			while (i--) {
				id = anchors[i].innerHTML.replace(' ', '') + 'Div';
				div = document.getElementById(id);
				if (div) div.style.display = anchors[i] === target ? 'block' : 'none';
			}
			i = listItems.length;
			while (i--) {
				listItems[i].className = anchors[i] === target ? 'active' : 'inactive';
			}
			div = document.getElementById('intro');
			if (div) div.style.display = 'none';
			return fb.stopEvent(e);
		},
		anchors = document.getElementById('tabs').getElementsByTagName('a'),
		i = anchors.length;
		while (i--) {
			var a = anchors[i];
			if (a.addEventListener) {
				a.addEventListener('click', click, false);
			} else if (a.attachEvent) {
				a.attachEvent('onclick', click);
			}
		}
	};
	if (window.addEventListener) {
		window.addEventListener('load', load, false);
	} else if (window.attachEvent) {
		window.attachEvent('onload', load);
	}
})();