window.onload = rotate;

var mainImages = new Array("images/banners/banner_main1.jpg","images/banners/banner_main1.jpg","images/banners/banner_main1.jpg","images/banners/banner_main2.jpg","images/banners/banner_main1.jpg","images/banners/banner_main1.jpg","images/banners/banner_main1.jpg","images/banners/banner_main1.jpg","images/banners/banner_main1.jpg");
var thisAd = 0;

function rotate() {
	thisAd++;
	if (thisAd == mainImages.length) {
		thisAd = 0;
	}
	document.getElementById("mainImages").src = mainImages[thisAd];

	setTimeout("rotate()", 4 * 1000);
}