// JavaScript Document
function valida(){
	
var nome=document.form1.nome.value;
var email=document.form1.email.value;
var assunto=document.form1.assunto.value;
var tipo=document.form1.tipo.value;
var msg=document.form1.mensagem.value;
var error_form = 0;

//alert(nome);

if (nome==""){
	document.form1.nome.style.border="1px solid #FF0000";
	error_form = 1;
	
}else{
	document.form1.nome.style.border="1px solid #000000";
}
if (email==""){
	document.form1.email.style.border="1px solid #FF0000";
	error_form = 1;
	
}else{
	document.form1.email.style.border="1px solid #000000";
}
if (assunto==""){
	document.form1.assunto.style.border="1px solid #FF0000";
	error_form = 1;
	
}else{
	document.form1.assunto.style.border="1px solid #000000";
}
if (tipo==""){
	document.form1.tipo.style.border="1px solid #FF0000";
	error_form = 1;
	
}else{
	document.form1.tipo.style.border="1px solid #000000";
}
if (msg==""){
	document.form1.mensagem.style.border="1px solid #FF0000";
	error_form = 1;
	
}else{
	document.form1.mensagem.style.border="1px solid #000000";
}
if (error_form==1)
{
	document.getElementById("label_error").style.visibility ="visible";
	return false;	
}
}