function VerificaEmail(email) {

		if (!email) return false;
		var  BadChars = "*|,\":<>[]{}`\';()&$#% ";
		var  GoodChars = "@.";   
		for (var i = 0; i < email.length; i++) {
			if (BadChars.indexOf(email.charAt(i)) != -1) {
				return false;
			}
		}
		for (var i = 0; i < GoodChars.length; i++) {
			if (email.indexOf(GoodChars.charAt(i)) == -1) {
				return false;
			}
		}
	 	if (email.indexOf ('@.',0) != -1 || email.indexOf ('.@',0) != -1) {
			return false;
		}
	   return true;
	}