Re: Automatically Refreshing png-Image'd Web Page

You might want to use iframe's so you can refresh just individual sections when you need to. On Fri, 2004-03-19 at 12:00, dpgirago@mdanderson.org wrote: > Howdy Listers, > > The Background: > I am making dynamic, color-coded, png images of the floor plan of a > building and displaying them in a browser. Numerous radioactivity sensors > throughout the building send their readings to a MySQL dB, and the web > page queries the dB, and depending on the readings, the areas specific to > the sensors will appear green for normal, yellow for high but acceptable, > and red for critical. All this works OK. > > The Problem: > Neither the HTML nor JavaScript code I usually use for automatically > refreshing a page has any effect if the header("Content-type: image/png") > necessary for displaying the png image is included. If I comment out the > header() line, the page refreshes, but the image data comes through as > hieroglyphics. Obviously, I need to refresh the page to get the latest > data, and to create and display the corresponding image. > > The Question: > Is there any way to automatically refresh a web page displaying a png > image? > > Thanks in advance for any thoughts/insights into how I can solve this > problem. > > dave -- Adam Voigt adam@kotisprop.com