/**
  * função que valida email
  **/
function isEmail(x)
{
//	var x = document.forms[0].email.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	//if (filter.test(x)) alert('YES! Correct email address');
	//else alert('NO! Incorrect email address');
	if (filter.test(x)) return true;
	else return false;
}

/**
  * verifica se é numero
  **/
function isNumeric(sText)
{
//   var ValidChars = "0123456789.";
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}

/**
  *Valida numero de telefone
  **/
function isFone(sText){
if (sText.length >= 8 ){
	if ( isNumeric( sText ) )
	return true;
}
return false;
}