At 16:49 19/10/99 , Jeff Rush wrote:
Hmmm, I'm staring at web sites that -do- update their graphic content, such as weather display sites and the MRTG (network graph stats) program, and I don't see anything like a variable URL.
How do they manage it? The only new item I see is the use of:
<META HTTP-EQUIV="Refresh" CONTENT=300> <META HTTP-EQUIV="Expires" CONTENT="...a date">
While this would cause the HTML to refreshed periodically, how are they getting the browser to re-fetch the *images*? I've captured the HTML source for several iterations and the <IMG SRC="blah"...> part never changes, so I would expect the same graphic would keep appearing on each cycle.
What kind of URL is pointing to the image? What headers are returned when retrieving the image? -- Martijn Pieters, Web Developer | Antraciet http://www.antraciet.nl | Tel: +31-35-7502100 Fax: +31-35-7502111 | mailto:mj@antraciet.nl http://www.antraciet.nl/~mj | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 ------------------------------------------