I finally added the copy-to-clipboard feature into the Cantonese Input System. It took me a while as zero clipboard does not work well with jQuery layout. It does not work well with Chrome either.
After fixing the $(id) function as it conflicts with jQuery’s $() function, using the plain getElementbyid function, zero clipboard works well with Firefox and Explorer (8) but not chrome. It took me a while to figure out the problem with registry. I try using the .js file directly under the input page, Chrome seem to work to pass the security check. Interestingly enough that if it passed, then the other reference (from other folder) would work as well.
Here is the screenshot of the copy:
Please test it out at: