/**
 * @author josh
 */
function toggle_overlay() {
	el = $("overlay");
	el.style.display = (el.style.display == "block") ? "none" : "block";
}
function set_overlay(title, message, button) {
	$("dialog-title").innerHTML = title;
	$("dialog-message").innerHTML = message;
	$("dialog-buttons").innerHTML = "<input type=\"button\" onclick=\"toggle_overlay();\" value=\"" + button + "\" />";
}