Image Name and Properties

[Replicant]

Just an idea here. All the threads in a forum are opened with the same page id and is different on every forum (If I remember correctly). Set the default site logo to core/clear.gif (1px x 1px) or other small lightweight logo, then reset the site logo per page using CSS with something like

.page140 .site-logo{
content: url("/imagedir/combine.jpg")
}