Simple Cipher Decoder

Change log 1.01:
1)Error fixed on clicking solve and arrow buttons in the vigenere decoder
2)Error fixed when number of columns exceeds text length in substiution cipher
3)Can now handle variable block length when changing columns
4)Multiple identicle conversion values onn the frequency analysis page now not allowed

This project is near its final stages but there may still be improvements to be made. If you could write some form of review or send me an email with advice I would greatly appreciate it.

This is a series of three simple programs that will allow you to easily encrypt and decrypt text using any combination of substitutions, transpositions, vigenere ciphers or caesar shifts. The programs will not completely solve the ciphers for you haowever they will make it very clear to see how to solve them and ensure that there is no need for tedious manual work.