Scramble - ASP.NET Technology

Type or copy-paste some text in the upper box.
The SCRAMBLE button will scramble all characters of every word, except the beginning and end character. (So only words with more than three characters will be scrambled.)
At the times when the mass has just discovered the internet and everybody was used to be flooded with jokes and funny images, the next text has gone round the world:
Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.
Although it is almost surely a hoax instead of the result of profound, psychological research (look for instance at the word rscheearch, which has an extra 'ch'), it is something that you don't forget easily.
That is why I soon thought at the concept of a word scrambler when I looked for an example to illustrate during an explanation how the programming language can influence the final result, although the functionality is almost entirely the same in the four cases.
On this page ASP.NET (traditional, without Ajax) has been used.
I have implemented the same Word Scrambler with the next technologies too: