function hideBox(id, vale) {
	var name = id;

	var today = new Date();
	var zero_date = new Date(0,0,0);
	today.setTime(today.getTime() - zero_date.getTime());
	var expires = new Date(today.getTime() + (8 * 7 * 86400000));

	var cookieString = name + "=" +escape(vale) + ";expires=" + expires.toGMTString();
	document.cookie = cookieString;

	if (vale != 1)
	Element.show(id);
	else
	Element.hide(id);

}

function checkAvailBox(name) {

	var start = document.cookie.indexOf(name+"=");
	var len = start+name.length+1;
	if ((!start) && (name != document.cookie.substring(0,name.length))) {

		Element.show(name);
		return null;
	}
	else if (start == -1)
	{
		Element.show(name);
		return null;
	}

	var end = document.cookie.indexOf(";",len);
	if (end == -1) end = document.cookie.length;
	vale = unescape(document.cookie.substring(len,end));

	if (vale != 1)
	Element.show(name);
	else
	Element.hide(name);
}