function goBack (event) {
	event = event ? event : window.event;

	var target = event.srcElement ? event.srcElement : event.target;

	history.go(-1);

	// DOM
	if (event.cancelable)
		event.preventDefault();

	// IE
	return false;
}

function goBackBind() {
	var tags = document.getElementsByTagName("A");
	var i;
	for (i=0; i<tags.length; i++)
		if (tags[i].getAttribute("rel") == "goback")
			tags[i].onclick = goBack;
}

if (window.attachEvent) {
	// IE
	window.attachEvent("onload", goBackBind);

} else {
	// DOM
	window.addEventListener("load", goBackBind, false);

}