Moving a box up from the bottom into the text

[Troutnut]

I'm writing PHP code to automatically place ads at the bottom of my articles. I would like the last bit of the article to wrap around the ad, like so:

bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla bla bla bla bla bla bla
bla bla bla bla bla ¦----------------------
bla bla bla bla bla ¦
bla bla bla bla bla ¦ Ad goes here
bla bla bla bla bla ¦
bla bla bla bla bla ¦
bla bla bla bla bla ¦
bla bla bla bla bla ¦
bla bla bla bla bla ¦----------------------

This would be trivial IF I could place the markup for the ad above the text that goes alongside it. But I have to place the ad code AFTER all the text, and still have the text wrap around it nicely to the bottom.

Does anybody know a way to do this?

[Moby_Dim]

May be not :(

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