// JavaScript Document

//the images and corresponding taglines
var theBanners = new Array( ['banner_home-1.jpg', 'Partnership in every port'],
							 ['banner_home-2.jpg', 'Results you can count on'],
							 ['banner_home-3.jpg', 'A world of opportunity'] );

var l = theBanners.length;
		
//generate random number based on total number of banners
var theNumber = Math.round(Math.random()*(l-1));

//to show random image
//call this function from within HTML body
function showImage(){
			
	var banner = document.getElementById("bannerHome");
	banner.style.backgroundImage = 'url(images/'+theBanners[theNumber][0]+')';
	document.write('<h1>'+theBanners[theNumber][1]+'</h1>');

}