function prepareLinks()  {
	if (!document.getElementsByTagName) return false;
	var links = document.getElementsByTagName("a");
	for (var i=0; i<links.length; i++) {
		if(links[i].getAttribute("class") == "goback") {
			links[i].onclick = function() {
			 history.back();
			 return false;
			 }
		}
	}
}