Refreshing a document images

My site generates chart gifs on the fly and embeds them in HTML documents (using ASP pages). The problem is that users don't see updated charts unless they click on they refresh button on every page containing a chart. Other solution is to disable the browser's caching.
Both of the solutions are not good enough since they require manual intervension and generate extra load on the server since each page containing also lots of static images that doesn't have to be loaded again and again from the server.

Any other ideas ???

thanks,
Avi.
 
kavasAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

NickRackhamCommented:
Refresh the page every couple of minutes.

Insert the code below in the page that needs constantly updating. change the URL to that of the same page i.e if the path of your page is http://yourserver/page.htm 


<meta HTTP-EQUIV="Refresh" CONTENT="180; URL=http://yourserver/page.htm ">

The number 180 refers to the number of seconds before the page is refreshed.

Nick
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
NickRackhamCommented:
:o)
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
HTML

From novice to tech pro — start learning today.