if (document.images) {
	a1_on = new Image;
	a1_on.src = "http://www.guitar.com.au/main_page_images/top_and_side_images/nav_tab.gif";
	a1_off = new Image;
	a1_off.src = "http://www.guitar.com.au/main_page_images/top_and_side_images/nav_tab.gif";
}

function rollover(img, state, a) {
	document.images[img].src = eval("a1_" + state + ".src");
}

function snapBorder(img, color, width) {
	img.style.border = width + "px " + color + " solid";
}