pridani clanku do db

<h2>přidat článek</h2>
<?

if (($_POST[hidden] == 1) and ($_POST[nadpis] != "") and ($_POST[popis] != "") and ($_POST[text] != "") and ($_POST[autor] != ""))
     {
      $_POST[text] = str_n($_POST[text]);
      $_POST[text] = str_modra($_POST[text]);
      $_POST[text] = str_tmava($_POST[text]);
      $_POST[text] = str_url($_POST[text]);
      $_POST[text] = str_b($_POST[text]);
      $_POST[text] = str_i($_POST[text]);
      $_POST[text] = str_u($_POST[text]);
      $_POST[text] = str_smajlici($_POST[text]);
	  //tadyto je novy!!!
	  //cas
	  $cas = time();
	  $cas=Date("d.m.y H:i:s");
	  //z checkboxu
	  // $_POST[verejne] bod 1 nebo nula
	  //do precteno vlozis 0...
	  
     $db = mysql_query("INSERT INTO clanky (`id`,`nadpis`,`popis`,`text`,`autor`,`verejne`,`$cas` ) VALUES ('$_POST[id]','$_POST[nadpis]', '$_POST[popis]', '$_POST[text]', '$_POST[autor]', '$_POST[verejne]', '$_POST[$cas]')") or die ("Chyba pri vkladani dat do databaze: ".mysql_error());
		 echo "<script>window.location.href=\"index.php?id=vypis_clanky\";</script>" ;
     }
elseif (($_POST[nadpis] == "") or ($_POST[popis] == "") or ($_POST[text] == "") or ($_POST[autor] == "")) 
     {
     $echo = "<h2>Nevyplnil si vše!</h2>";
     }

?>
<form action="index.php?id=vlozit_clanek" method="post" name="formular">
<input type="hidden" name="hidden" value="1" />
<table border=0>

<?
$db = mysql_query("SELECT id FROM clanky ORDER BY `id` DESC LIMIT 1");
$z_dotazu = mysql_fetch_array($db);
$nove_id = $z_dotazu['id'] + 1;
?>

<tr><td align="left">ID: </td><td><b><? echo $nove_id;?></b></td></tr>
<tr><td align="left">NADPIS: </td><td><input type="text" name="nadpis" size="30" class="input" /></td></tr>
<tr><td align="left">AUTOR: </td><td><input type="text" name="autor" size="30" class="input" /></td></tr>
<tr><td></td><td align="left">
</td></tr>
<tr><td align="left">POPIS: </td><td><textarea type="text" name="popis" rows="10" cols="80"/></textarea></td></tr>
<tr><td align="left">ČLÁNEK: </td><td><textarea type="text" name="text" rows="20" cols="80"/></textarea>

<td>
<?
      echo "<a href=\"#\" onclick=\"form('|'); return false;\" title=\"tuené\"><b>b</b></a><br>";
        echo "<a href=\"#\" onclick=\"form('|'); return false;\" title=\"kurzíva\"><i>i</i></a><br>";
      echo "<a href=\"#\" onclick=\"form('[u]|[/u]'); return false;\" title=\"podtržené\"><u>u</u></a><br>";
        echo "<a href=\"#\" onclick=\"form('[modra]|[/konec]'); return false;\" title=\"modrá\"><font class=\"blue\">modrá</font></a><br>";
      echo "<a href=\"#\" onclick=\"form('[tmava]|[/konec]'); return false;\" title=\"tmavá\"><font class=\"popis\">tmavá</font></a><br>";
        echo "<a href=\"#\" onclick=\"form('|'); return false;\" title=\"odkaz\">odkaz</a><br>";
echo "<a href=\"#\" onclick=\"form(' :D|'); return false;\"><img src=\"obr/smajlici/1.gif\" border=\"0\" title=\":D\"></a><br>";
echo "<a href=\"#\" onclick=\"form(' :P| '); return false;\"><img src=\"obr/smajlici/2.gif\" border=\"0\" title=\":P\"></a><br>";
echo "<a href=\"#\" onclick=\"form(' oO| '); return false;\"><img src=\"obr/smajlici/3.gif\" border=\"0\" title=\"oO\"></a><br>";
echo "<a href=\"#\" onclick=\"form(' :)| '); return false;\"><img src=\"obr/smajlici/4.gif\" border=\"0\" title=\":)\"></a><br>";
echo "<a href=\"#\" onclick=\"form(' :(| '); return false;\"><img src=\"obr/smajlici/5.gif\" border=\"0\" title=\":(\"></a><br>";
echo "<a href=\"#\" onclick=\"form(' ;)| '); return false;\"><img src=\"obr/smajlici/6.gif\" border=\"0\" title=\";)\"></a>";
?>
</td>

</td></tr>
<tr><td colspan="2" align="right"><input type="checkbox" name="verejne" value="1">ZVEŘEJNIT</td><td></td></tr>
<tr><td colspan="2" align="right"><input type="hidden" name="id" value="<? echo $nove_id;?>" /><input type="submit" name="send" value="VLOŽ" class="inputbox_b"></td><td></td></tr>
<tr><td colspan="3" align="center"><? if ($_POST[hidden] == 1){echo $echo;}?></td></tr>
</table>
</form>