those pages msn, yahoo or google have two type of layout,
one is wide other one is narrow. you need to be very good in css to do this and js as well

try to send a http request to server periodically and check the version number. if the version on client side less then the server side, refresh the page... dont forget to increase the version each...

dont know how much you know about javascript but this will do the thing that you want.

this one adds butons into body onclick event and changes its label to delete and
delete buton delete any...