Crate a script-sofware to submit messages automatically to a website form.

Hello world I would like to create a script-software to submit messages automatically to a website form. We have a website that we want to promote our products to another website that have urls like: Example urls: [login to view URL] [login to view URL] [login to view URL] [login to view URL] etc.... I want to submit to the form a subject and a message and press the button "send" and after 5 sec to go to the next page and do the same think automatically till the page: [login to view URL] I'm waiting for the best offer. Chris