// w3cookies
// Forma de uso: 
// Criar: w3cookies.create('nome_do_cookie', 'valor', dias_para_expirar);
// Ler: w3cookies.read('nome_do_cookie');
// Deletar: w3cookies.erase('nome_do_cookie');
var w3cookies = {
	date: new Date(),
	create: function(strName, strValue, intDays) {
		if ( intDays ) {
			this.date.setTime(this.date.getTime()+(intDays*24*60*60*1000));
			var expires = "; expires=" + this.date.toGMTString();
		} else {
			var expires = "";
		}
		document.cookie = strName + "=" + strValue + expires + "; path=/";
	},

	read: function(strName) {
		var strNameIgual = strName + "=";
		var arrCookies = document.cookie.split(";");
		for ( var i = 0, strCookie; strCookie = arrCookies[i]; i++ ) {
			while ( strCookie.charAt(0) == " ") {
				strCookie = strCookie.substring(1,strCookie.length);
			}
			if ( strCookie.indexOf(strNameIgual) == 0 ) {
				return strCookie.substring(strNameIgual.length,strCookie.length);
			}
		}
		return null;
	},
	erase: function(strName) {
		this.create(strName, "", -1);
	}
}


//abreMenu(menuSelecionado, setaid)
function abreMenu(menuSelecionado, setaid){  
	var menu = w3cookies.read('menu');
	
	if(document.getElementById(menuSelecionado).style.display == 'block'){
		document.getElementById(menuSelecionado).style.display = 'none';
		document.getElementById(setaid).className = 'setaMais';
		w3cookies.erase('menu');
	}else{
		document.getElementById(menuSelecionado).style.display = 'block';
		document.getElementById(setaid).className = 'setaMenos';
		
		w3cookies.create('menu', menuSelecionado, 1);
		if(menu == null) menu = menuSelecionado;
		
		var ultimoMenu = document.getElementById('ultimoMenu').value; 
		var ultimoSeta = document.getElementById('ultimaSeta').value;

		if(menu.length > 0){
			ultimoMenu = menu;
			setaid = ultimoMenu.replace('subMenu', 'setaid');
			ultimoSeta = setaid;
		}
		
		if(ultimoMenu != '' && ultimoMenu != menuSelecionado){
			document.getElementById(ultimoMenu).style.display = 'none';
			document.getElementById(ultimoSeta).className = "setaMais";	
		}	
	
		document.getElementById('ultimaSeta').value = setaid;	
		document.getElementById('ultimoMenu').value = menuSelecionado;
	}				
}