If you want to post a picture in this "ฝีไม้ลายมือ" it allows you to just easily upload the picture directly from your computer... by clicking on "browse " button on the "ไฟล์แนบ" line which is below the message box (after you finish typing the message)... After you click "browse" button, it will prompt you to find the picture that you want from wherever (directory or file) you had stored them, then click "open"....now you will get the link to your picture... in the blank regtangle box beside or in front of the Browse button.....
and Finally when you ready to post just click "ตอบ". Then it's done. If you want to post more just simply repeat all steps..ja...
***P.S. the size of the picture cannot be bigger than 80 KB as it's specified at the " ไฟล์แนบ " line. You have to resize the pictures first (if you need to) before post it.

Sorry that I can't type in Thai... The Thai font that appear in this message, I copied and pasted them.