How travian hero equip was done?

[SimaoMP]

Hello, Im making a small game where I need the Hero Equipment system of travian. Any idea how it is done with browser languages?

I want this to be possible:
The hero got a weapon from the quest. Instead of just making a slot with the item(like in shakes and fidget), I would prefer that the hero can equip and handle the weapon just like in travian, where the sword stays in the hand. Can anyone pointing me the direction of how its done? or any file already doing it?

Thanks