var visibleElem = null;
function showRate(id,event) {
    var el;
	if (id == 0) {
		if (visibleElem != null) {
			visibleElem.style.display = "none";
			visibleElem = null;
			return;
		}
		return;
	}

    el = document.getElementById('rate_' + id);
    if (el.style.display == "block") {
        el.style.display = "none";
    } else {
        el.style.display = "block";
    }
	if (visibleElem != null && visibleElem != el) {
		visibleElem.style.display = "none";
	}
	visibleElem = el;
	event.cancelBubble = true;
}