allora ragazzi nella mia chat ho questo codice dv gli utenti cliccano e modificano il colore dei loro messaggi...
questo è l'attuale....
Codice PHP:
<?php
session_start
();    
header("Cache-control: private");    
if(!isset(
$_SESSION["login"]))
{
Header('Location:index.php'); } ?>

<?php 
$login
=$_SESSION['login'];
if(!isset(
$_POST['mc']))
?>
<html>
<head>
<link rel="shortcut icon" href="http://italywap.altervista.org/chat/favicon.ico" />
<link rel="icon" href="http://italywap.altervista.org/chat/favicon.ico" />
<title>.::iTaLyWaP::.</title>
<link rel="stylesheet" type="text/css" href="style.css"> 
</head>
<body>
<form method=POST action="modcolo.php">
<body bgcolor=black link=white text=white>
<center>
<div align=center class=b>[b].::iTaLyWaP::.[/b]</div>
<hr>
| [url="chat_leggi.php"]Chat[/url] | [url="msg_privati.php"]MP[/url] | 
</font><hr>
[b]Seleziona colore[/b]</div>
<hr>
<TABLE>
  <TBODY>
  <TR>
    <TD style="BACKGROUND-COLOR: #00008E"><INPUT type=radio value=#00008E 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #00009F"><INPUT type=radio value=#00009F 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #0000C6"><INPUT type=radio value=#0000C6 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #0000ff"><INPUT type=radio value=#0000FF 
      name=mc></TD></TR>

  <TR>
    <TD style="BACKGROUND-COLOR: #005500"><INPUT type=radio value=#005500 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #005555"><INPUT type=radio value=#005555 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #0055aa"><INPUT type=radio value=#0055AA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #0055ff"><INPUT type=radio value=#0055FF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #00aa00"><INPUT type=radio value=#00AA00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #00aa55"><INPUT type=radio value=#00AA55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #00aaaa"><INPUT type=radio value=#00AAAA 
      name=mc></TD>

    <TD style="BACKGROUND-COLOR: #00aaff"><INPUT type=radio value=#00AAFF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #00ff00"><INPUT type=radio value=#00FF00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #00ff55"><INPUT type=radio value=#00FF55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #00ffaa"><INPUT type=radio value=#00FFAA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #00ffff"><INPUT type=radio value=#00FFFF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #550000"><INPUT type=radio value=#550000 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #550055"><INPUT type=radio value=#550055 
      name=mc></TD>

    <TD style="BACKGROUND-COLOR: #5500aa"><INPUT type=radio value=#5500AA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #5500ff"><INPUT type=radio value=#5500FF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #555500"><INPUT type=radio value=#555500 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #555555"><INPUT type=radio value=#555555 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #5555aa"><INPUT type=radio value=#5555AA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #5555ff"><INPUT type=radio value=#5555FF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #55aa00"><INPUT type=radio value=#55AA00 
      name=mc></TD>

    <TD style="BACKGROUND-COLOR: #55aa55"><INPUT type=radio value=#55AA55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #55aaaa"><INPUT type=radio value=#55AAAA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #55aaff"><INPUT type=radio value=#55AAFF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #55ff00"><INPUT type=radio value=#55FF00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #55ff55"><INPUT type=radio value=#55FF55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #55ffaa"><INPUT type=radio value=#55FFAA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #55ffff"><INPUT type=radio value=#55FFFF 
      name=mc></TD></TR>
  <TR>

    <TD style="BACKGROUND-COLOR: #aa0000"><INPUT type=radio value=#AA0000 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aa0055"><INPUT type=radio value=#AA0055 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aa00aa"><INPUT type=radio value=#AA00AA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aa00ff"><INPUT type=radio value=#AA00FF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #aa5500"><INPUT type=radio value=#AA5500 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aa5555"><INPUT type=radio value=#AA5555 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aa55aa"><INPUT type=radio value=#AA55AA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aa55ff"><INPUT type=radio value=#AA55FF 
      name=mc></TD></TR>

  <TR>
    <TD style="BACKGROUND-COLOR: #aaaa00"><INPUT type=radio value=#AAAA00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aaaa55"><INPUT type=radio value=#AAAA55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aaaaaa"><INPUT type=radio value=#AAAAAA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aaaaff"><INPUT type=radio value=#AAAAFF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #aaff00"><INPUT type=radio value=#AAFF00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aaff55"><INPUT type=radio value=#AAFF55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #aaffaa"><INPUT type=radio value=#AAFFAA 
      name=mc></TD>

    <TD style="BACKGROUND-COLOR: #aaffff"><INPUT type=radio value=#AAFFFF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #ff0000"><INPUT type=radio value=#FF0000 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ff0055"><INPUT type=radio value=#FF0055 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ff00aa"><INPUT type=radio value=#FF00AA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ff00ff"><INPUT type=radio value=#FF00FF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #ff5500"><INPUT type=radio value=#FF5500 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ff5555"><INPUT type=radio value=#FF5555 
      name=mc></TD>

    <TD style="BACKGROUND-COLOR: #ff55aa"><INPUT type=radio value=#FF55AA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ff55ff"><INPUT type=radio value=#FF55FF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #ffaa00"><INPUT type=radio value=#FFAA00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ffaa55"><INPUT type=radio value=#FFAA55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ffaaaa"><INPUT type=radio value=#FFAAAA 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ffaaff"><INPUT type=radio value=#FFAAFF 
      name=mc></TD></TR>
  <TR>
    <TD style="BACKGROUND-COLOR: #DFDF00"><INPUT type=radio value=#DFDF00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ffff00"><INPUT type=radio value=#FFFF00 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ffff55"><INPUT type=radio value=#FFFF55 
      name=mc></TD>
    <TD style="BACKGROUND-COLOR: #ffffaa"><INPUT type=radio value=#FFFFAA 
      name=mc></TD>
    </TR></TBODY></TABLE>



<INPUT type=submit value="  Modifica colore " class=form></form>
</body>
</html>
<?php 

else{
$coloretestonuovo=$_POST['mc'];

$key=stristr($coloretestonuovo,"#");
if(empty(
$key))
{
$coloretestonuovo="#FFFFFF";}


//prelevo i dati dal file txt
$var=@fopen("personaluser.txt","a+");//apro il file .txt (modalità lettura/scrittura)
$var2=file("personaluser.txt");//estraggo l'array dal file .txt
@fclose($var);//chiudo il file .txt
$i=count($var2);//conto gli elementi nell'array
for($a=0$a<$i$a++){//uso il ciclo for per guardare nell'array
$testo=explode("-||-",$var2[$a]);
if(
$testo[0]==$login)
{
$nick=$testo[0];
$coloretesto=$testo[1];
$smile=$testo[2];
$pagine=$testo[3];
$level=$testo[4];
$colorenick=$testo[5];
}
}
//fine ciclo for


//li inserisco nel file txt ma prima controllo se l utente è gia presente
$variabile=$nick."-||-".$coloretestonuovo."-||-".$smile."-||-".$pagine."-||-".$level."-||-".$colorenick;

$righe file("personaluser.txt");

foreach (
$righe AS $key => $riga)
  {
  list(
$a$b$c$d$e$f) = explode("-||-"$riga);
  if (
$a == $login)
    unset(
$righe[$key]);
   }
$fp fopen("personaluser.txt""w+");
foreach (
$righe AS $key => $riga)
   
fputs($fp$riga);
fclose($fp);

$var=@fopen("personaluser.txt","a+");//apro il file .txt (modalità lettura/scrittura)
@fwrite($var,$variabile."\n");//scrivo la variabile del form nel file .txt
@fclose($var);//chiudo il file .txt
Header('Location:chat_leggi.php');

?>
ora io vorrei mettere un campo dove loro scrivono il codice esadecimale cliccano modifica e gli cambia colore...mi sapete aiutare???
grassie a chi mi aiuterà