As I need the other direction, e.g. vertical upwards I added the function flipv_up.
Its just a beta probably with errors left. If you like, you can download the zipped code and try.
A kind of documentation with a learning curve of some days only instead of several years you need until now to learn html, css, php, javascript, jquery, python, Django, Java and all the other stuff.
I would like to discuss if a kind of slideshow documentation could be an appropriate way.
A slideshow combined for example with downloadable code - simplified, isolated but working examples both for the starting point as well as for the ThisStepFinished point.
You got 1GB free space with up to 1,000 files up to 10 MB each.
You only need to keep a mirror folder structure on your pc. What you delete in your mirror is deleted by Google too next time uploading.
For Google terms of service see my posting and the answer of djidjadji in Google-Appengine Group.
Download zipped sample project and follow 'readme'.
This site is build on the method described there. Not only the simple htmlDemo link demonstrates click functionality but the whole site presents static content, as you can see when asking your browser for View/Source of this index page.
This way you can start quickly and leave learning of more sophisticated methods to the time you got more and more content.
See discussion in App Engine Patch Group.
Download zipped sample project and try.
But in the meantime Byron Jonson rewrote his Fake Windows Sendmailer that it can be used to solve the problem. For details see discussion in App Engine Patch Group.
You can download my working demo too.