anchor.diff:  
   /obj/machinery/door/airlock/update_icon()
   	if(overlays) overlays.Cut()
  -	if(underlays) underlays.Cut()
  +	//if(underlays) underlays.Cut()
   
   	if(boltsCut)
  -		underlays += image(icon, "bolts_cut")
  +		overlays += image(icon, "bolts_cut")
   
   	if(density)
   		if(locked && lights)
   			icon_state = "door_locked"
   		else
   			icon_state = "door_closed"
  -		if(p_open || welded || boltsCut || emergency)
  +		if(p_open || welded || emergency)
   			overlays = list()
   			if(p_open)
   				overlays += image(icon, "panel_open")
  
positive.code: 					return
  		else if(hasPower())
  			user << "<span class='warning'> The airlock's motors resist your efforts to force it.</span>"
  		else if(locked)
  			user << "<span class='warning'> The airlock's bolts prevent it from being forced.</span>"
  		else if( !welded && !operating)
  			if(density)
  
negative.code: 					//raise door bolts
  					if(src.isWireCut(AIRLOCK_WIRE_DOOR_BOLTS))
  						usr << text("The door bolt drop wire is cut - you can't raise the door bolts.<br>\n")
  					else if(!src.locked && !src.boltsCut)
  						usr << text("The door bolts are already up.<br>\n")
  					else if(src.boltsCut)
  						usr << text("The door bolts are cut and cannot be raised.<br>\n")
  