Example: web_concurrent_start
In the following example, the web_concurrent_start function marks the beginning of a concurrent group.
web_concurrent_start("DocParts",NULL); web_add_header(...); web_url(..., "URL=http://...url1", ...); web_add_header(...); web_add_header(...); web_url(..., "URL=http://...url2", ...); ... web_concurrent_end(NULL);