function attach_image_swaps() {
	
	var tags = document.getElementsByTagName("a");
	for( var i = 0; i < tags.length; i++) {
		if(tags[i].className == "swap_image") {
			tags[i].onmouseover = function() {
				var image = document.getElementById("swap_image");
				image.setAttribute("src", this.href);

				var image_div = document.getElementById("photos");
				var popups = image_div.getElementsByTagName("a");
				
				popups[0].setAttribute("href", this.rel);

				return false;
			};
			tags[i].onclick = function() {
				return false;
			}
		}
		
		if(tags[i].className == "zoom") {
			tags[i].onclick = function() {
				window.open(this.href, '_blank', 'width=800, height=600');
				return false;
			};
		}
	}
}