Probleme with $_POST["FileCount"];

<?php

//This variable specifies relative path to the folder, where the gallery with uploaded files is located.
//Do not forget about the slash in the end of the folder name.
$galleryPath = "../books/";

$absGalleryPath = realpath($galleryPath);

include("connex.php");
mysql_connect($host,$user,$pass) or die("Impossible de se connecter");
mysql_select_db($bdd) or die("Impossible de se connecter");
		
function mini($img_src,$img_dest) {
   // Lit les dimensions de l'image
   $size = GetImageSize($img_src);  
   $src_w = $size[0]; $src_h = $size[1];  
      // Copie dedans l'image initiale redimensionnée
      $src_im = ImageCreateFromJpeg($img_src);
	  
	   if($src_w>=$src_h){
	   	  // Crée une image vierge aux bonnes dimensions
      	$dst_im = ImageCreateTrueColor(125,125);
		$inf = $src_h/125;
		$inf = $src_w/$inf;
		imagecopyresampled($dst_im,$src_im,0,0,0,0,$inf,125,$src_w,$src_h);
	   }   
	   elseif($src_h>$src_w){
	   	  // Crée une image vierge aux bonnes dimensions
     	 $dst_im = ImageCreateTrueColor(125,125);
		 $inf = $src_w/125;
		 $inf = $src_h/$inf;
		  imagecopyresampled($dst_im,$src_im,0,0,0,0,125,$inf,$src_w,$src_h);
	   }
      // Sauve la nouvelle image
      ImageJpeg($dst_im,$img_dest);
      // Détruis les tampons
      ImageDestroy($dst_im);  
      ImageDestroy($src_im);
}

function saveUploadedFiles()
{
	global $absGalleryPath;
		
	//Create XML file which will keep information about files (image dimensions, description, etc). 
	//XML is used solely for brevity. In real-life application most likely you will use database instead.
	$descriptions = new DOMDocument('1.0');
	$descriptions->appendChild($descriptions->createElement("files"));
	
	//Get total number of uploaded files (all files are uploaded in a single package).
[color=#FF0000]	$fileCount = $_POST["FileCount"];
	//HERE IS THE PROBLEM[/color]
	//Iterate through uploaded data and save the original file, thumbnail, and description.
	for ($i = 1; $i <= $fileCount; $i++)
	{	
		//on ajoute dans la base de données :
		$id = $_GET['id'];
		$verif = mysql_query("Select id from pics where nid='$id'"); 
		$nb = mysql_num_rows($verif);
		$ordre = $nb + 1; //on recup le numero d'ordre
		$query = "INSERT INTO pics(nid) VALUES('$id')"; 
		$result = mysql_query($query); 
		$last_id = mysql_insert_id();
		//Get the first thumbnail and save it to disk. It stores 1200x1200 optimized image.
		$thumbnail1Field = "Thumbnail1_" . $i;
		if (!$_FILES[$thumbnail1Field]['size'])
		{
			return;	
		}
		$fileName = $id."_".$last_id.".jpg";	
		$fileName_mini = $id."_".$last_id."_mini2.jpg";
		//a modifier : 	ajouté nom désiré
		move_uploaded_file($_FILES[$thumbnail1Field]['tmp_name'], $absGalleryPath . "/" . $fileName);
		$fichier = $absGalleryPath . "/" . $fileName;
		$fichier_mini = $absGalleryPath . "/" . $fileName_mini;
		$picture = $fileName;
		$picture_min2 = $fileName_mini;
		
		$fileName = $id."_".$last_id."_mini.jpg";	
		//Get the second thumbnail and save it to disk. It stores 120x120 preview image. 
		$thumbnail2Field = "Thumbnail2_" . $i;
		if (!$_FILES[$thumbnail2Field]['size'])
		{
			return;	
		}
		move_uploaded_file($_FILES[$thumbnail2Field]['tmp_name'], $absGalleryPath . "/" . $fileName);
		$fichiers_mini = $absGalleryPath . "/" . $fileName;
		$picture_min = $fileName;
		
		//Ajout du logo EGO sur petite image
		$dimension=getimagesize($fichiers_mini);
		$chemin = imagecreatefromjpeg($fichiers_mini); 
		$copy = imagecreatefromgif('../img/copyright2.gif');
		$larg_cop=imagesx($copy);
		$long_cop=imagesy($copy); 
		//calcul la position du copyright sur l'axe des abscisses
		$x=(($dimension[0]/2)-($larg_cop/2));
		//calcul la position du copyright sur l'axe des ordonn&eacute;es
		$y=($dimension[1]-$long_cop-4/2);
		//r&eacute;alisation de la superposition
		imagecopymerge($chemin,$copy, $x, $y, 0, 0, $larg_cop, $long_cop, 40);
		imagejpeg($chemin,$fichiers_mini);
		// fin ajout logo


		$fileName = $id."_".$last_id."_acc.jpg";
		$thumbnail3Field = "Thumbnail3_" . $i;
		if (!$_FILES[$thumbnail3Field]['size'])
		{
			return;	
		}
		move_uploaded_file($_FILES[$thumbnail3Field]['tmp_name'], $absGalleryPath . "/" . $fileName);
		$picture_acc = $fileName;
		
		//creation sous PHP de la mini aux dimensions carrés
		mini($fichier,$fichier_mini);
		
		//Ajout du logo EGO sur grande image
		$dimension=getimagesize($fichier);
		$chemin = imagecreatefromjpeg($fichier); 
		$copy = imagecreatefromgif('../img/copyright.gif');
		$larg_cop=imagesx($copy);
		$long_cop=imagesy($copy); 
		//calcul la position du copyright sur l'axe des abscisses
		$x=($dimension[0]-$larg_cop);
		//calcul la position du copyright sur l'axe des ordonn&eacute;es
		$y=($dimension[1]-$long_cop-10);
		//r&eacute;alisation de la superposition
		imagecopymerge($chemin,$copy, $x, $y, 0, 0, $larg_cop, $long_cop, 40);
		imagecopymerge($chemin,$copy, 0, 10, 0, 0, $larg_cop, $long_cop, 40);
		imagejpeg($chemin,$fichier);
		// fin ajout logo
		
		$maj = "UPDATE pics SET picture='$picture', picture_acc='$picture_acc', picture_min='$picture_min', picture_min2='$picture_min2', ordre='$ordre' WHERE id='$last_id'"; 
		$maj2 = mysql_query($maj);
	}
	mysql_close(); 
}

saveUploadedFiles();
?>