/**
* FUNCAO QUE LIMPA OS INPUT TEXT.
*/
function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}
/**
* FUNCAO QUE VALIDA O FORM DE E-MAIL.
*/

function validaFormMail(){
	if((document.forms[0].nome.value == "")&&(document.forms[0].email.value == "")&&(document.forms[0].mensagem.value == "")){
		document.forms[0].nome.focus();
		document.getElementById("nome").style.color="#FF0000";
		document.getElementById("email").style.color="#FF0000";
		document.getElementById("mensagem").style.color="#FF0000";
		document.getElementById("alertaForm").style.display="block";
		document.getElementById("msgEnviada").style.display="none";
		return false;
	}
	if(document.forms[0].nome.value == ""){
		document.forms[0].nome.focus();
		document.getElementById("nome").style.color="#FF0000";
		document.getElementById("alertaForm").style.display="block";
		document.getElementById("msgEnviada").style.display="none";
		return false;
	}
	else{
		document.getElementById("nome").style.color="#000000";
	}
	
	if(document.forms[0].email.value == ""){
		document.forms[0].email.focus();
		document.getElementById("email").style.color="#FF0000";
		document.getElementById("alertaForm").style.display="block";
		document.getElementById("msgEnviada").style.display="none";
		return false;
	}
	else{
		document.getElementById("email").style.color="#000000";
	}
	
	if(document.forms[0].mensagem.value == ""){
		document.forms[0].mensagem.focus();
		document.getElementById("mensagem").style.color="#FF0000";
		document.getElementById("alertaForm").style.display="block";
		document.getElementById("msgEnviada").style.display="none";
		return false;
	}
	else{
		document.getElementById("mensagem").style.color="#000000";
	}
	
	document.getElementById("msgEnviada").style.display="block";
	document.getElementById("alertaForm").style.display="none";
	return false;
}