How to move the attachment file from one issue to another issue in Jira ??

[wonseock.kim]

i use the HTML macro at the collab page.

Now i'm making the tool to create JIRA issue page with some basic information of some JIRA issues at the collab page.

but i don't know how to move the attachment file from one issue to another issue in JIRA using HTML or Javascript.

please let me know the way... 

[Nic Brough -Adaptavist-]

To do it with javascript, you're going to need to issue a string of commands to the server, over REST.  Get the attachment you need, and download it, delete it from the current issue and attach it to the target one.