function mostraItem(obj){
	base = document.getElementById("clientes").getElementsByTagName("div")
	for(i=0;i<base.length;i++){
		base[i].style.display="none";
	}
	document.getElementById(obj).style.display = "block";
}
function mostraItem(obj){
	base = document.getElementById("clientes2").getElementsByTagName("div")
	for(i=0;i<base.length;i++){
		base[i].style.display="none";
	}
	document.getElementById(obj).style.display = "block";
}

function mostraItemSub(obj,group){
	base = document.getElementById(group).getElementsByTagName("div")
	for(i=0;i<base.length;i++){
		base[i].style.display="none";
	}
	document.getElementById(obj).style.display = "block";
}

function abreLink(obj,classe,group){
	base = document.getElementById(group).getElementsByTagName("div")
	for(i=0;i<base.length;i++){
		if (base[i].className == classe){
		base[i].style.display="none";
		}
	}
	document.getElementById(obj).style.display = "block";
}

function validacont(cont){
	if(cont.nome.value ==""){
      alert("Por favor preencha o campo Nome!");
      cont.nome.focus();
      return false;
	} 
	
	if ((cont.email.value.indexOf("@")<0) && (cont.email.value.indexOf(".")<0)){
	alert("Por favor, preencha corretamente o campo E-mail!")
	cont.email.focus();
	return (false);
	}
	
   return true;
}