function activate(i) {
	window.document.images[i + 1].src = pics[i + 8];
}

function deactivate(i) {
	if (i == siteindex) {
		return;
	}
	window.document.images[i + 1].src = pics[i];
}

function init(i) {
	siteindex = i;
	activate(i);
}

function preload() {
	var buf = new Image();
	for (i = 0; i < pics.length; i++) {
		buf.src = pics[i];
	}
}

var pics = new Array(12);
var siteindex;
pics[0] = "nav1.png";
pics[1] = "nav2.png";
pics[2] = "nav3.png";
pics[3] = "nav4.png";
pics[4] = "nav5.png";
pics[5] = "nav6.png";
pics[6] = "nav7.png";
pics[7] = "nav8.png";
pics[8] = "nav1a.png";
pics[9] = "nav2a.png";
pics[10] = "nav3a.png";
pics[11] = "nav4a.png";
pics[12] = "nav5a.png";
pics[13] = "nav6a.png";
pics[14] = "nav7a.png";
pics[15] = "nav8a.png";
preload();