Here it is, revised one last time (although probably not the last time) to eliminate the “double-smack” of v1.5 in IE 5.5+ PC:
SI_clearAbsolutes v1.6 Packaged source. Just unzip, configure the
script tag immediately before the closing
body tag of any document with absolutes to be cleared. Done.
Thanks to everyone who picked this script apart and provided alternate code to consider.