Javascript expert required to complete WYSIWYG HTML editor

I am writing a WYSIWYG HTML editor for use in websites. It uses a <div> with contentEditable="true" attribute in the same way as other WYSIWYG editors do. However, it differs in that all the default keypress events are canceled and are handled manually. i.e. when someone taps the letter m on their keyboard, the keypress event fires, [login to view URL]() halts the typing of 'm' into the contentEditable, and instead is manually written in using javascript. I am using this instead of execCommand as I am sometimes doing other things too depending on the key that is pressed. These other things are out of scope of this work and there are hooks which other code can use to do the other things. I have got it to the point where the WYSIWYG editor is functional but it has a few bugs and it still requires a few new features. Currently, it allows you to type and create paragraphs. You can set what type of paragraph it is (e.g. change the p to h1, h2, h3 etc). You can delete text using backspace or by using the delete key. You can separate a paragraph into two using the enter key. You can make text bold, italic, underlined or striked-through. I am looking for someone to work through removing bugs and adding new features. Specifically this is some of the work: - Fix a bug where if the cursor's at the start of the node and backspace is tapped, it should delete the parent element(s) and move to the end of the previous text node - Fix a bug where if a section of text is highlighted and a key is pressed it doesn't properly delete all the highlighted text and leaves traces of elements behind - Add bullet lists - Remove bullet lists - General other bug testing and fixing in browsers other than Chrome There are other bugs too which will show up with more use. This project requires a Javascript Expert - please do not reply unless you are comfortable with object-oriented javascript, closures and using javascript to render HTML.