Thanks RTM, I saw that posting but that's just a straightforward find/replace statement - I need something that uses a fair bit of logic!

If a super-human sed statement can do it then great! Otherwise it may be a case of writing a program to read word by word, character by charater until it matches a "<img>" then read ahead until ">" ...manipulate the line, then spit it out... or something like that ???......

Of course....I welcome any other *simpler* ideas!