Wordpress - Insert html / text in the editor
Fixed it myself.
function appendText(text) {//Insert contentparent.tinyMCE.activeEditor.setContent(parent.tinyMCE.activeEditor.getContent() + text);//Close windowparent.jQuery("#TB_closeWindowButton").click();}
For those of you who want to add the text at the current cursor location, you can make use of the mceInsertContent function (built-in TinyMCE function).
A quick example would be:
function addTextIntoEditor(myText){ tinymce.activeEditor.execCommand('mceInsertContent', false, myText);}This is based on Magus's answer located here