is it possible to update a div element on a remote web page

is it possible to update a div element on a remote web page

hi all,
i have one task in which i have to update the information on DIV on one of the webpage which will run on another system which can be any client system. is it possible to update the information of the web page in real time so that if some client is watching the other web page at that time, he will see the latest content. 

i dont want to create server side scripting and logic for this as this is very small content. anyone with some idea about this?

i hope i was able to describe the problem clearly...