jQuery - 在textarea上更改，发布到php脚本并使用结果更新div

Can you guys help me out with this? I've got a form and it has a textarea where the user will paste in some text. I want to use jQuery to send the text they paste to a php script which will decode it and output some information. I've got a div, and I want that div to be updated with the html my script outputs.Can you guys help me out with this? I've got a