Redirect after submit - Dev Shed

Ok for some reason my script isn't redirecting to the page I want to after a submition has been made. Basically after the user hits submit in the form, it calls up to that php function, which inserts the values from the form into the database. I just want it to after the values are submitted to redirect to a new page. As of right now, its reloading the same page.

 <?php
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  $theValue = (!get_magic_quotes_gpc()) ? addslashes($theValue) : $theValue;

  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;    
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  }
  return $theValue;
}

$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
  $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}

if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
  $insertSQL = sprintf("INSERT INTO Comments (Poster, Body, BlogID, `Date`) VALUES (%s, %s, %s, %s)",
                       GetSQLValueString($_POST['Poster'], "text"),
                       GetSQLValueString($_POST['Body'], "text"),
                       GetSQLValueString($_POST['BlogID'], "text"),
                       GetSQLValueString($_POST['Date'], "int"));

  mysql_select_db($database_Stock, $Stock);
  $Result1 = mysql_query($insertSQL, $Stock) or die(mysql_error());
  
  $updateGoTo = "blog.php";
  if (isset($_SERVER['QUERY_STRING'])) {
    $updateGoTo .= (strpos($updateGoTo, '?')) ? "&" : "?";
    $updateGoTo .= $_SERVER['QUERY_STRING'];
  }
  header(sprintf("Location: %s", $updateGoTo));
}
?> 

Code (markup):

 

Instead of using this

header(sprintf("Location: %s", $updateGoTo));

use this one it may work

header("Location: ", $updateGoTo);