Boldening Text "inside" A Textarea

I have a textarea #myarea into which I'm typing text. I've typed this text. This is a sentence and only this word will end up being bolded Now I have a button on the side, lik

Solution 1:

If you don't mind using a div that has its ContentEditable property set to true then you can easily do this using:

document.execCommand('bold',null,false);

You can easily style this div to look and feel like a textarea.

See jsFiddle here: http://jsfiddle.net/hqvDT/1/