function showIngr() {
{ document.getElementById('ingredients').className = 'visible'; }
}

function chkNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.$";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
   }


function cardValue(){

if (document.getElementById('giftcardValue').value.length == 0) 
      {
      alert("Please enter your Giftcard value.");
      } 
   else if (chkNumeric(document.getElementById('giftcardValue').value) == false) 
      {
      alert("Please enter a numeric value.");
      }
else
{
document.giftForm.submit();
}
}