function replace_comma(val)
  {
    val = val.replace(/,/ , ".");
    //alert(val)
    return val;
  }

function decimal_places(val)
  {
    val = val.toString();
    if (val.indexOf(".") == -1)
      {
        return 0;
      }
    else
      {
        var dec = val.length - val.indexOf(".")-1 
        return dec
      } 
  }