Auto clicker and typer

I need a program that can select a textbox on a page and type some text and click a send button. I am looking to automate some chat-room functions so that it's possible to chat through another program. Some of the chat-rooms are coded in Java, but they are mostly in Flash (swf) so it's not possible to hook the actual chatrooms. The program will also need to take commands through a command line function or through a TCP listener. Thanks.