function setCookie (name, value, expires, path, domain, secure) {
      document.cookie = name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}

function getCookie(name) {
	var cookie = " " + document.cookie;
	var search = " " + name + "=";
	var setStr = null;
	var offset = 0;
	var end = 0;
	if (cookie.length > 0) {
		offset = cookie.indexOf(search);
		if (offset != -1) {
			offset += search.length;
			end = cookie.indexOf(";", offset)
			if (end == -1) {
				end = cookie.length;
			}
			setStr = unescape(cookie.substring(offset, end));
		}
	}
	return(setStr);
}

function open_tree(){

	id=getCookie("menu");

	if(!id) return 0;

	var m=document.getElementById('Container_Menu');

	var el=document.getElementById(id);
	el.style.display='block';
	while((el=el.parentNode)!=null){
		if((el==m) || (el==document))	break;

		el.style.display='block';
	};

}

function show_hide(id, prnt){
	var el=document.getElementById(id);
	if(el.style.display=='none') {
		el.style.display='block';
		setCookie("menu",id);
		//prnt.src="expand_m.gif";
	}else{
		el.style.display='none';
		//prnt.src="expand_p.gif";
	}
	
}