function href(link) {
	document.location.href=link;
}

function click_link() {
	Array.filter(this.childNodes, function(elem) {
			if (elem.href)
				href(elem.href);
		}
	);
}

function make_clickable(elem) {
	elem.onclick = click_link;
	elem.style.cursor = "pointer";
	elem.className = "js_" + elem.className;
}

Array.filter(document.getElementsByClassName("cancelbutton"), make_clickable);
Array.filter(document.getElementsByClassName("okbutton"), make_clickable);