edit/save/undo buttons didn't work correctly

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/wec_map/trunk@75362 735d13b6-9817-0410-8766-e36946ffe9aa
V3.0.1

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/wec_map/trunk@75363 735d13b6-9817-0410-8766-e36946ffe9aa