Boys, i have one problem with a poll script, what i want to modificate for my network.

Here can you see the problem.
[url]http://www.swek.net/index.php?p=umfrage[/url]

and here is the code one
[code]<?php
ini_set('display_errors', true);
ini_set('default_mimetype', 'text/html');
ini_set('default_charset', 'ISO-8859-1');
class umfrage {
function index() {
need_login();
section_content(include ("umfrage1.php"));
section_close('Sonntag, 13. März 2011: Was soll SWEK noch zusätzlich bieten?');
}
}
?>[/code]

and here is code two
[code]<?php
$varia=file("fragen.txt");
$frage=array_pop($varia);
echo "$frage";
echo "<form action=\"{$_SERVER['PHP_SELF']}\" method=\"post\">";
$i=0;
while(isset($varia[$i])) {
$j=$i+1;
echo "<input type=\"radio\" name=\"ant\" value=\"$j\">$varia[$i]<br>";
$i++;
}
echo "<input type=\"submit\" value=\"abstimmen\">";
echo "</form>";
$z=file("antworten.txt");
$ant = isset($_POST['ant']) ? $_POST['ant'] : "";
if ($ant!='') {
$lvote=fopen("lastip.txt","r");
$lv=fgets($lvote,255);
fclose($lvote);
$ip = getenv ("REMOTE_ADDR");
if ($lv!=$ip) {
$z[$ant-1]=$z[$ant-1]+1;
$datei=fopen("antworten.txt","w");
foreach ($z as $save) {fputs($datei,chop($save)."\n");}
fclose($datei);
$lvote=fopen("lastip.txt","w");
fputs($lvote,"$ip");
fclose($lvote);
}
}
$laenge=90;
$gesamt=0;
foreach($z as $zahl)
{ $gesamt=$gesamt+$zahl; }
$proz=array();
foreach ($z as $zahl) {
if ($gesamt!=0) {
$p=round($zahl/$gesamt10000)/100;
array_push($proz,$p);
}
}
$max=1;
foreach ($z as $zahl) {
$zahl=$zahl10/10;
if($zahl > $max) { $max=$zahl; }
}
$breite=array();
foreach ($z as $zahl)
{
$b=$zahl*$laenge/$max;
array_push($breite,$b);
}
$i=0;
while (isset($z[$i]))
{
echo "$varia[$i]<br>";
echo "<img src=\"balken_blau.gif\" border=\"0\" width=\"$breite[$i]\" height=\"12\" alt=\"$z[$i] Stimmen\">";
$x=$laenge-$breite[$i];
echo "<img src=\"balken_grau.gif\" border=\"0\" width=\"$x\" height=\"12\" alt=\"$z[$i] Stimmen\">";
echo "$proz[$i]%";
echo "<br>";
$i++;
}
echo "<br>Stimmen: $gesamt (100%)";
?>[/code]

I hope someone can help me.

P.S. Sorry for the German Words in the code, but for me is this simple to understand what is mean in this code.