IE = (navigator.userAgent.indexOf("Gecko") > -1)? false: true;
pagina = location.href.substring(location.href.lastIndexOf("/") + 1, location.href.lastIndexOf("."));


temp = ""
opac = 0;

function over(idItem){
	if(idItem != pagina){
		opac +=10
		if(opac <= 100){
			if(IE)
				document.getElementById(idItem).filters.alpha.opacity =  opac;
			else{
				if(opac == 100)
					document.getElementById(idItem).style.opacity = "1.0";
				else
					document.getElementById(idItem).style.opacity = "." + opac;
			}	
			temp = setTimeout("over('" + idItem + "')", 1);
		}
	}
}


function volta(idItem){
	if(idItem != pagina){
		if(IE)
			document.getElementById(idItem).filters.alpha.opacity = 0;
		else
			document.getElementById(idItem).style.opacity = ".0";
			
		opac = 10
		clearTimeout(temp)
	}
}


function marcaMenu(){
	try{
		if(IE)
			document.getElementById(pagina).filters.alpha.opacity = 100;
		else
			document.getElementById(pagina).style.opacity = 1.0;
	}
	catch(e){}
}		

//Aqui eu crio uma função para chamar todas as funções que precisam ser carregadas no onload das páginas
var endereco = location.href;
function chamaFuncoes(){
	marcaMenu();		
}

window.onload = chamaFuncoes;

var ultima = "";
	
function mostraDiv(idAbre){
	if (ultima.length > 0)
		escondeDiv(ultima);
		
	ultima = idAbre;
	
	document.getElementById(idAbre).style.display = "block";
}

function escondeDiv(idFecha){
	document.getElementById(idFecha).style.display = "none";
}


function mudaItens(){
	if (location.href.indexOf("?naturals") > -1){
		document.getElementById('bgVariavel').background = "images/naturals/background.gif"	
		document.getElementById('linkVariavel').href = document.getElementById('linkVariavel').href + '?naturals'
		document.getElementById('linkVariavel2').href = document.getElementById('linkVariavel2').href + '?naturals'
		try{
			document.getElementById('linkVariavel3').href = document.getElementById('linkVariavel3').href + '?naturals'
			document.getElementById('linkVariavel4').href = document.getElementById('linkVariavel4').href + '?naturals'
		}catch(e){}
	}
	else
		document.getElementById('bgVariavel').bgColor = "#ffffff";	
}