// JavaScript Document
/* FUNCTION NEWSLETTER */
function CadNews()
{
	var Email = document.frm_news.newsletter.value;

	if(!ValidaEmail(frm_news.newsletter))
	{
		alert("Informe o E-mail por favor.");
		frm_news.newsletter.focus();

		return false;
	}
	else
	{
		window.open("receba_newsletter.php?email=" + Email, "CadEmail", "width=300, height=500");

		return true;
	}

	return false;

}

/* FUNCTION VALIDA BRANCO */

function ValidaBranco(objParam){

	if(objParam.value == ''){

		return false;

	}

	else{

		return true;

	}

}

/* FUNCTION VALIDA NÚMERO */
function ValidaNum(objParam){



	if(!ValidaBranco(objParam)){

		return false;

	}

	else if(isNaN(objParam.value)){

		return false;

	}
	else{

		return true;

	}

}

/* FUNCTION VALIDA E-MAIL */
function ValidaEmail(objParam){

	var invalid, s;

	invalid = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/;

	var s;

	if(!ValidaBranco(objParam)){

		return false;

	} else if (invalid.test(objParam.value) == false) {

		return false;

	} else {

		return true;

	}

}