How to use JavaScript to fill a form on another page

Question

I am trying to fill out the fields on a form through JavaScript. The problem is I only know how to execute JavaScript on the current page so I cannot redirect to the form a

Answer 1

If it would be possible to manipulate target websites without access to the target's system/source/mitm-methods then this would really be an open highway for malware in combination with clickjacking! I do not want your script to tell the form of my bank what to do. ;-)

Use some kind of automation tools like AutoIt (www.autoitscript.com) for this purpose. Easy to learn and it hast good Form integration. If standard is not enough, look for UDFs like winhttp for AutoIt.