var contFlag = false;
var header, lis;

window.onload = function(){
	var histLink;
	header = document.getElementById("header");
	lis = header.getElementsByTagName("li");
	
	for(var i=0;i<lis.length;i++){
		var historico = this.className;
		lis[i].onmouseover = function(){
		    withoutStyle();
			this.className += " active";
			histLink = this.getElementsByTagName("a")[0].className;
			this.getElementsByTagName("a")[0].className += " active";
		}
		lis[i].onmouseout = function(){
			this.className += historico;
			this.getElementsByTagName("a")[0].className = histLink;
		}
	}
}

function ativaMenu()
{
    document.getElementById(liAtual).className = liAtual + ' active';
    document.getElementById(itemAtual).className = 'active';
}

function withoutStyle()
{
	if(contFlag == false){
		for(var i=0;i<lis.length;i++){
			lis[i].className = lis[i].id;
			lis[i].getElementsByTagName("a")[0].className = "";
		}
		contFlag = true;
	}
}