write a Usage of execCommand in richTextEdit.js
write a Usage of queryCommandEnabled&queryCommandState&queryCommandValue in richTextEdit.js
write a Feature of places a yellow highlight around the selectrd text in a rich text editor in richTextEdit.js
write a Feature of places a yellow highlight around the selectrd text in a rich text editor for IE in richTextEdit.js
write a Feature of rich text submit it yourself in richTextEdit.js