iframe overlays
dont allow nested overlays
document iframe overlays
rm background-color from body and #main as it is already set for html
make pager navigation navigate inside overlay
cross browser height and width
typos
rm flash_message, welcome_message and some others from overlays
autoresize iframe overlays
use format=overlay for overlays with a stripped down root template
fixup: autoresize iframe overlays
fixup: use format=overlay for overlays with a stripped down root template
Merge pull request #536 from xi/feature-iframe-overlays-pr

iframe overlays
fix feedback z-index
fixup overlay/ajax format
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