function onCastSpell(cid, var)
	local pos = variantToPosition(var)
	local field = getTileItemByType(pos, ITEM_TYPE_MAGICFIELD)
	if(field.type == ITEM_TYPE_MAGICFIELD) then
		doRemoveItem(field.uid)
		doSendMagicEffect(pos, CONST_ME_POFF)
		return true
	else
		doPlayerSendDefaultCancel(cid, RETURNVALUE_NOTPOSSIBLE)
		doSendMagicEffect(getPlayerPosition(cid), CONST_ME_POFF)
	end
	return false
end