Probleme mit einem MyCode-Button

PHP-Code:
<link rel="stylesheet" href="{$mybb->asset_url}/jscripts/sceditor/editor_themes/{$theme['editortheme']}" type="text/css" media="all" />
<style type="text/css">
.sceditor-button-spoiler div  {
background: url(images/spoiler.png);
}
</style>
<style type="text/css">
.sceditor-button-mycode=rating div  {
background: url(images/stars.png);
}
</style>
<script type="text/javascript" src="{$mybb->asset_url}/jscripts/sceditor/jquery.sceditor.bbcode.min.js?ver=1805"></script>
<script type="text/javascript" src="{$mybb->asset_url}/jscripts/bbcodes_sceditor.js?ver=1804"></script>
<script type="text/javascript" src="{$mybb->asset_url}/jscripts/sceditor/editor_plugins/undo.js?ver=1805"></script>
<script type="text/javascript">
var partialmode = {$mybb->settings['partialmode']},
opt_editor = {
plugins: "bbcode,undo",
style: "{$mybb->asset_url}/jscripts/sceditor/textarea_styles/jquery.sceditor.{$theme['editortheme']}",
rtl: {$lang->settings['rtl']},
locale: "mybblang",
enablePasteFiltering: true,
autoUpdate: true,
emoticonsEnabled: {$emoticons_enabled},
emoticons: {
// Emoticons to be included in the dropdown
dropdown: {
{$dropdownsmilies}
},
// Emoticons to be included in the more section
more: {
{$moresmilies}
},
// Emoticons that are not shown in the dropdown but will still be converted. Can be used for things like aliases
hidden: {
{$hiddensmilies}
}
},
emoticonsCompat: true,
toolbar: "{$basic1}{$align}{$font}{$size}{$color}{$removeformat}{$basic2}image,{$email}{$link}|video{$emoticon}|{$list}{$code}quote,spoiler,mycode=rating|maximize,source",
};
{$editor_language}
$(function() {

$.sceditor.command.set('mycode=rating', {
exec: function() {
this.insert('[mycode=rating]', '[/mycode]');
},
tooltip: "Bewertungs-Sterne vergeben"
});

$.sceditor.command.set('spoiler', {
exec: function() {
this.insert('[spoiler]', '[/spoiler]');
},
tooltip: "Spoiler Button"
});

$("#{$bind}").sceditor(opt_editor);

MyBBEditor = $("#{$bind}").sceditor("instance");
{$sourcemode}
});
</script>