/*cookie*/
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function eraseCookie(name) {
	createCookie(name,"",-1);
}
/*init*/
if(readCookie('tab') && readCookie('tab') != 'none') {
	document.getElementById('tab_' + readCookie('tab')).style.display = 'block';
}

/*tabs*/
var n = new Array("menu", "contact", "fav", "plus", "search", "help", "me");

/*
function assign_event() {
	for(var i = 0; i < n.length; i++) {
		var ts = n[i];
		var tmp = document.getElementById("btn_" + n[i]);
		tmp.addEventListener("click", function(){fold2(ts)}, false);
	}
}
*/
function assign_event2() {
	if(!document.getElementById('btn_menu').addEventListener) {
		document.getElementById('btn_menu').attachEvent('onclick', fold('menu'));
		//document.getElementById('btn_me').attachEvent('click', function(){fold('me')}, false);
	}
	else {
		document.getElementById('btn_menu').addEventListener('click', function(){fold('menu')}, false);
		//document.getElementById('btn_me').addEventListener('click', fold('me'), false);
	}
}
function fold(s) {
	var t = document.getElementById('tab_' + s);
	if(readCookie('tab') == s) {
		t.style.display = 'none';
		//t.style.top = "-20em";
		//setTimeout('t.style.display="none"', 500);
		createCookie('tab', 'none', 1);
	}
	else {
		if(readCookie('tab') && readCookie('tab') != 'none') {
			document.getElementById('tab_' + readCookie('tab')).style.display = 'none';
		}
		t.style.display = 'block';
		//t.style.top = "4.8em";
		createCookie('tab', s, 1);
	}
}




//assign_event2();