// Menu DROP-DOWN //

var toggleMenu = 
{
	init : function(sContainerClass, sHiddenClass) {
		if (!document.getElementById || !document.createTextNode) {return;} // Check for DOM support
		var arrMenus = this.getElementsByClassName(document, 'ul', sContainerClass);
		var arrSubMenus, oSubMenu, oLink;
		
		for (var i = 0; i < arrMenus.length; i++) {
			arrSubMenus = arrMenus[i].getElementsByTagName('ul');
			for (var j = 0; j < arrSubMenus.length; j++) {
				oSubMenu = arrSubMenus[j];
				oLink = oSubMenu.parentNode.getElementsByTagName('a')[0];
				oLink.onclick = function(){toggleMenu.toggle(this.parentNode.getElementsByTagName('ul')[0], sHiddenClass);
				return false;
			}
			this.toggle(oSubMenu, sHiddenClass);
		}
	}
	},

	toggle : function(el, sHiddenClass) {
		var oRegExp = new RegExp("(^|\\s)" + sHiddenClass + "(\\s|$)");
		el.className = (oRegExp.test(el.className)) ? el.className.replace(oRegExp, '') : el.className + ' ' + sHiddenClass; 
		// Add or remove the class name that hides the element
	},

	/* addEvent function */
	addEvent : function(obj, type, fn) {
		if (obj.addEventListener)
		obj.addEventListener(type, fn, false);
		else if (obj.attachEvent) {
			obj["e"+type+fn] = fn;
			obj[type+fn] = function() {obj["e"+type+fn](window.event);}
			obj.attachEvent("on"+type, obj[type+fn]);
		}
	},

	getElementsByClassName : function(oElm, strTagName, strClassName){
	    var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
	    var arrReturnElements = new Array();
	    strClassName = strClassName.replace(/\-/g, "\\-");
	    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	    var oElement;
	    for(var i=0; i<arrElements.length; i++){
	        oElement = arrElements[i];
	        if(oRegExp.test(oElement.className)){
	            arrReturnElements.push(oElement);
	        }
    }
	    return (arrReturnElements)
	}
};

toggleMenu.addEvent(window, 'load', function(){toggleMenu.init('menu','hidden');});


//******************************************************************************************//


// Alterna conteúdo das abas //

function stAba(menu,conteudo)
{
	this.menu = menu;
	this.conteudo = conteudo;
}

var arAbas = new Array();
arAbas[0] = new stAba('td_projeto','div_projeto');
arAbas[1] = new stAba('td_equipe','div_equipe');
arAbas[2] = new stAba('td_apoio','div_apoio');
arAbas[3] = new stAba('td_contato','div_contato');

function AlternarAbas(menu,conteudo)
{
	for (i=0;i<arAbas.length;i++)
	{
		m = document.getElementById(arAbas[i].menu);
		m.className = 'menu-aba';
		c = document.getElementById(arAbas[i].conteudo)
		c.style.display = 'none';
	}
	m = document.getElementById(menu)
	m.className = 'menu-aba-sel';
	c = document.getElementById(conteudo)
	c.style.display = '';
}


//******************************************************************************************//


// Aumenta / Diminui tamanho da fonte

function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
return getCookieVal (j);
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
return null;
}

function SetCookie (name, value) {
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
document.cookie = name + "=" + escape (value) +
((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
((path == null) ? "" : ("; path=" + path)) +
((domain == null) ? "" : ("; domain=" + domain)) +
((secure == true) ? "; secure" : "");
}

function alterar(valor,cookie,id){
var expdate = new Date ();
expdate.setTime (expdate.getTime() + (24 * 60 * 60 * 1000 * 31));
v = Number(GetCookie(cookie)) + Number(valor);
if(v != Number){ SetCookie(cookie,3,expdate); }
if(v<1){v=1;}
if(v>5){v=5;}
document.getElementById(id).className = "ft"+v;
SetCookie(cookie,v,expdate)
}