window.addEvent('domready', function(){
	$('list').getElements('li:odd').setStyles({'background-color':'#000','color':'#fff'});
	$('list').getElements('li:even').setStyles({ 'background-color':'#f00','color':'#fff'});
	$('list').getElements('li').each(function (el){
		el.addEvent('click',function(){
			var newbg=new Color(el.getStyle('background-color')).invert();
			var newcol=new Color(el.getStyle('color')).invert();
			//
		el.setStyles({'background-color':newbg,'color':newcol});
		});
	});
});