//menu

//stylesheet target para mudar a seta e activar o menu
var fx = "menuseta"

//preload das imagens para a seta
img1=new Image()
img1.src="imagens/setaoff.gif"	//seta desligada
img2=new Image()
img2.src="imagens/setaon.gif"	//seta ligada
ns6_index=0

function change(e){

if(!document.all&&!document.getElementById)
return

if (!document.all&&document.getElementById)
ns6_index=1

var source=document.getElementById&&!document.all? e.target:event.srcElement
if (source.className==fx){
	var source2=document.getElementById&&!document.all? source.parentNode.childNodes:source.parentElement.all
	if (source2[2+ns6_index].style.display=="none"){
		source2[0].src="imagens/setaon.gif"
		source2[2+ns6_index].style.display=''
		}
		else{
		source2[0].src="imagens/setaoff.gif"
		source2[2+ns6_index].style.display="none"
		}
	}
}
document.onclick=change