function showHideLay(drop1, cond1, drop2, cond2, drop3, cond3, drop4, cond4) {
	myDrop1 = document.getElementById(drop1)
	myDrop1.style.display = cond1;
	if(drop2) {
		myDrop2 = document.getElementById(drop2)
		myDrop2.style.display = cond2;
	}
	if(drop3) {
		myDrop3 = document.getElementById(drop3)
		myDrop3.style.display = cond3;
	}
	if(drop4) {
		myDrop4 = document.getElementById(drop4)
		myDrop4.style.display = cond4;
	}
}

function jumpTo(url) {
	if (navigator.appVersion.indexOf("(X11") != -1 ||
	navigator.appVersion.indexOf("(Mac") != -1){
		window.open(url,'','toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,resizable=yes');
		window.open(url,'','toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,resizable=yes');
	}else{
		window.open(url,'','toolbar=no,location=no,directories=no,status=no,scrollbars=yes,menubar=no,resizable=yes');
	}

}


function checa_formulario(formulario){

	if (formulario.nome.value == ""){ 
		alert("Por Favor nao deixe o seu nome em branco");
		formulario.nome.focus();
	return (false); 
}

	if (formulario.email.value == ""){ 
		alert("Por Favor nao deixe o seu e-mail em branco");
		formulario.email.focus();
	return (false); 
}
	
	if (formulario.mensagem.value == ""){ 
		alert("Por favor não deixe a mensagem em branco");
		formulario.mensagem.focus();
	return (false); 
}

}