lift (elevator)

Well, this is the first script that I have written that I think might be worth something to someone else. There isn't much to it, but I was trying to figure out a creative way to get from one level to the next with out walking. I hope you like it, and I am sorry if it is already out there and I missed it.

 
 // lift script, v 1.0 by timeless montreal
 //
 // This script will allow you to make any prim a lift or an elevator.
 // You should only have to change the liftAmount to the distance 
 // you want the lift to move. Of course, if you rather it move
 // side to side, it shouldn't be too hard to tweak.
 //
 // enjoy!
 
 integer liftAmount = 4; // change this to the amount you 
 								   // want to go up/down
 
 integer isUp = FALSE; // Stores whether the object is up
 
 
 movePlatform(){	
 	llStartAnimation("stand");
 	if(isUp == FALSE){
 		llSetPos(llGetPos() + <0, 0, liftAmount>);
 		isUp = TRUE;
 	} else {
 		llSetPos(llGetPos() + <0, 0, -1*(liftAmount)>);
 		isUp = FALSE;
 	}
 }
 
 default
 {
 	state_entry()
 	{
 		llSitTarget(<0,0,1>,<0,0,0,1>);		
 		llSetSitText("Lift");
 	}
 	
 	
 	changed(integer change)
 	{
 		if(change & CHANGED_LINK)
 		{
 			key avataronsittarget = llAvatarOnSitTarget();
 			if( avataronsittarget != NULL_KEY ) 
 			{
 				if ((llGetPermissions() & PERMISSION_TRIGGER_ANIMATION) && llGetPermissionsKey() == avataronsittarget) {
 					llStopAnimation("sit");
 					movePlatform();
 				} else {
 					llRequestPermissions(avataronsittarget, PERMISSION_TRIGGER_ANIMATION);
 				}
 			}
 		}
 	}
 
 
 	run_time_permissions(integer perm)
 	{
 		if(perm)
 		{
 			// Place the code here!
 			llStopAnimation("sit");
 			movePlatform();				
 		}
 	}
 }
 
 
 

nicccccceeeeeeee way to be trav!

is there a way to call it if you're no on the same level as the elevator?