Problème HTLM

Bonjour tout le monde ,

Je suis entrain de créer mon site. J'ai un rubrique news et c'est la que vient mon problème.

Chaque fois que j'ajoute un news, la dernière se mélange avec la première. Voila mon script si une âme charitable peut me dire ou se trouve l'erreur.

<?php  
    ob_start();  
    session_start(); /// initialize session   
    include("./inc/pw.php");   
    check_logged();  
    include("./inc/dirscan.php");  
    include("./inc/array_xml.php");  
    //html meta  
    include("./inc/jscript.php");  


    $xml= xml2ary(file_get_contents('../data.xml'));  
    // print_r($xml);  
    if(isset($_POST['addnews'])){  
        $selected= $_POST['itemnumber'];  
        $tot= count($xml[data][0][_c][item][$selected][_c][news]);  

        $xml[data][0][_c][item][$selected][_c][news][$tot][_v]="<h5>08-01-2011</h5><p></p><h3>sample</h3><p><span class='newstext'>sample</span></p>";  

        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected);  
        ob_end_flush();  


    }  

    if(isset($_POST['deletenews'])){  
        $selected= $_POST['itemnumber'];  
        $newssel= $_POST['newsnumber'];  
        if ($newssel==0){  


            array_shift($xml[data][0][_c][item][$selected][_c][news]);  


        }else{  


            unset($xml[data][0][_c][item][$selected][_c][news][$newssel]);  



        }  
        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected);  
        ob_end_flush();  


    }  

    if(isset($_POST['savenews'])){  
        $selected= $_POST['itemnumber'];  
        $newssel= $_POST['newsnumber'];  
        $newtext = str_replace("../", "", $_POST['text']);  


        $xml[data][0][_c][item][$selected][_c][news][$newssel][_v]=$newtext;  




        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected.'&action=saved');  
        ob_end_flush();  


    }  

    if(isset($_POST['savename'])){  
        $selected= $_POST['itemnumber'];  



        $xml[data][0][_c][item][$selected][_c][testo][0][_v]=$_POST['name'];  




        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected.'&action=saved');  
        ob_end_flush();  


    }  
 if(isset($_POST['saveimage'])){  
        $selected= $_POST['itemnumber'];  



        $xml[data][0][_c][item][$selected][_c][img][0][_v]=$_POST['image'];  




        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected.'&action=saved');  
        ob_end_flush();  


    }  
    if(isset($_POST['savebkg'])){  
        $selected= $_POST['itemnumber'];  



        $xml[data][0][_c][item][$selected][_c][background][0][_v]=$_POST['bkg'];  




        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected.'&action=saved');  
        ob_end_flush();  


    }  

    if(isset($_POST['up'])){  
        $selected= $_POST['itemnumber'];  
        $newssel= $_POST['newsnumber'];  


          
        $temp = $xml[data][0][_c][item][$selected][_c][news][$newssel-1];  
        $xml[data][0][_c][item][$selected][_c][news][$newssel-1] = $xml[data][0][_c][item][$selected][_c][news][$newssel];  
        $xml[data][0][_c][item][$selected][_c][news][$newssel] = $temp;  




        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected);  
        ob_end_flush();  


    }  
      
    if(isset($_POST['down'])){  
        $selected= $_POST['itemnumber'];  
        $newssel= $_POST['newsnumber'];  


          
        $temp = $xml[data][0][_c][item][$selected][_c][news][$newssel+1];  
        $xml[data][0][_c][item][$selected][_c][news][$newssel+1] = $xml[data][0][_c][item][$selected][_c][news][$newssel];  
        $xml[data][0][_c][item][$selected][_c][news][$newssel] = $temp;  




        $last=ary2xml($xml);  

        //write();  
        $fh = fopen("../data.xml", "w");  

        if($fh==false)  
            die("unable to create file");  

        fwrite($fh,$last);  
        fclose($fh);  
        header('Location:indexlog.php?page=menu&edit='.$selected);  
        ob_end_flush();  


    }  




?>  

Merci