How can I mimic text-overflow: ellipsis in Firefox?

Question

I have some dynamic text contained in a div that is set to whatever a user enters in a textbox field. If the text doesn\'t fit in the div, right now it just gets cut off at

Answer 1

I changed this.value=strings.join('') to this.value=strings.join(' ') from Binyamin's reply, and it worked for me fine!