Script for greasemonkey + ITA Matrix
Main discussion here:
http://www.flyertalk.com/forum/travel-tools/1623427-ita-purchase-fares-orbitz-delta-userscript.html
Files:
ita-matrix-powertools.user.js -- Main userscript, install into Greasemonkey/etc.
ita-matrix-powertools-console.js -- Console-execute supported version of the script
script_minified.txt -- Compact , pastable/single line version of the script for pasting in the debug console