[JASS] How do i implement this script?

[Nicokick]

Attachment "Item"; {
ObjectId 1,
Path "BloodElfSpellShieldMask.mdx",
Parent 0, // "Bone_Center"
}

This is the jass script for the item spinner found on this site. Where do i put it? In the main map file? Do i have to put it in a function, or call it through a GUI trigger? What does "ObjectId" refer to?

 

[Marcelo Hossomi]

This does not seem to be JASS, but a model code...

 

[Nicokick]

This does not seem to be JASS, but a model code...

Oh.. that explains it.
But well, i put this in the attatchment mdl file then, and the attatchment will automaticly attatch to the spinner?
Or most importantly, will i still have to use a separate file for the attatchment and one for the item?