Palavras chaves não aparecem

jQuery(document).ready(function(){if(jQuery('form[action="/post"] #postingbox').length){if(jQuery('form[action="/post"] textarea#text_editor_textarea').val().indexOf('Tags / Palavras chave:')==-1){jQuery('#textarea_content').after('<br><img src="http://cdn1.iconfinder.com/data/icons/fugue/icon/price-tag.png"> Tags / Palavras chave: <input type="text" name="texttags" style="border-radius:0px;width:50%;margin-left:5px">');jQuery('form[action="/post"] input[type="submit"][name="post"]').click(function(){if(jQuery('input[name="texttags"]').val()!=''){jQuery('form[action="/post"] textarea#text_editor_textarea').val(jQuery('form[action="/post"] textarea#text_editor_textarea').val()+'\n\n Tags / Palavras chave: '+jQuery('input[name="texttags"]').val())}})}}});