function toggle(list, noOfId) {
	var listElementStyle = document.getElementById(list).style;
	
	if (listElementStyle.display == "block") {
		listElementStyle.display = "none";
		document.cookie = "listname="
		
	} else {
		for (i = 0; i <= noOfId; i++) {
			document.getElementById("a" + i).style.display = "none";
		}
		listElementStyle.display = "block";
		document.cookie = "listname=" + list
	}
}

function getCookie(name) {
	var search = name + "="
	var returnvalue = "";
	if (document.cookie.length > 0) {
		offset = document.cookie.indexOf(search)
		// if cookie exists
		if (offset != -1) {
			offset += search.length
			// set index of beginning of value
			end = document.cookie.indexOf(";", offset);
			// set index of end of cookie value
			if (end == -1) end = document.cookie.length;
			returnvalue=unescape(document.cookie.substring(offset, end))
		}
	}
	return returnvalue;
}

function removeCookie() {
	document.cookie = "listname="	
}