I have created a web page that encrypts/decrypts messages using a key that the user provides. It is pretty simple. I mainly did it for entertainment value. It slowly encrypts/decrypts the message with a cool display.

I was wondering if this is the right place to discuss this with others. I want to make the encryption scheme a little harder to break. I think someone may be able to figure out how to decrypt a message without the key. If someone here could take a look at it and tell me how easy it is to do that, it would be great. I don't want to use any other algorithm out there. I just want to keep working on my own. I can make it better. I also am just using plain text characters because I want it to be able to be emailed easily.

[URL="http://www.seabreezecomputers.com/encrypter"]http://www.seabreezecomputers.com/encrypter[/URL]