<script type="text/javascript">
function bla(){
check = confirm("Wollen Sie blbalbalbalbla???");
      if(check == true){
       
        //was soll ich hier mach um die funktion aufzurufen?

       }
}
</script>


<form action="" method="post">
<input type="submit" name="arch" value="arch" onclick="javascript:bla()">

</form>

<form action="urlOfYourScript" method="post" onsubmit="return confirm('Wollen Sie blbalbalbalbla???')">
  <table>
    <tr>
      <td><input type="text" name="row[0][0]" value="abc" /></td>
      <td><input type="text" name="row[0][1]" value="def" /></td>
      <td><input type="text" name="row[0][2]" value="ghi" /></td>
    </tr>
    <tr>
      <td><input type="text" name="row[1][0]" value="jkl" /></td>
      <td><input type="text" name="row[1][1]" value="mno" /></td>
      <td><input type="text" name="row[1][2]" value="pqr" /></td>
    </tr>
    <tr>
      <td colspan="3">
        <input type="submit" value="archivieren" />
      </td>
    </tr>
  </table>
</form>