function mostra(valor){
    document.getElementById("Sub"+valor).style.display = "";
	//document.getElementById(valor).style.backgroundImage="url('./images/chatmais1.jpg')";
	document.getElementById(valor).style.background="#fff";
	document.getElementById(valor).style.borderTop="2px solid #cccccc";
}

function sai(valor){
    document.getElementById("Sub"+valor).style.display = "none";
	//document.getElementById(valor).style.backgroundImage="";
	document.getElementById(valor).style.background="";
	document.getElementById(valor).style.borderTop="0px";
}

function imagens(valor,valor2){
    document.getElementById(valor).src="./images/"+valor2;
}

function saiimagens(valor,valor2){
    document.getElementById(valor).src="./images/gif.gif";
}