The invention is directed to a method of transmitting {HEAD ~ a file} having {TAIL ~ an advertising portion} and a requested portion different from the advertising portion 
having
The invention is directed to a method of transmitting { HEAD ~ a file } having { TAIL ~ an advertising portion } and a requested portion different from the advertising portion
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH