colors

colors.js

var Page = {
	main: document.getElementById('main'),
	selector1: document.getElementById('selector1'),
	selector2: document.getElementById('selector2'),
	selector3: document.getElementById('selector3'),

	setSelectorEvent: function() {
		Page.selector1.addEventListener('click', Page.selector1Response);
		Page.selector2.addEventListener('click', Page.selector2Response);
		Page.selector3.addEventListener('click', Page.selector3Response);
	},

	selector1Response: function(){
		Page.main.style.background = 'red';
	},
	selector2Response: function(){
		Page.main.style.background = 'blue';
	},
	selector3Response: function(){
		Page.main.style.background = 'orange';
	},

};

Page.setSelectorEvent();