Beacon protection with Worldedit

/*/////////////////////////////////////////////////////////////////////
// Created by: ibbignerd
// Contact: http://www.reddit.com/message/compose/?to=ibbignerd
// Version: 1.3.1
// Date: 01/10/13 10:32:24
// Plugins: WorldEdit by sk89q http://wiki.sk89q.com/wiki/WorldEdit
//          WorldGuard by sky89q http://wiki.sk89q.com/wiki/WorldGuard
// Script type: Craftscript
// Language: JavaScript
// Copyright: This work is licensed under a Creative Commons
// Attribution-NonCommercial 3.0 United States License.
//
// Description: After selecting the beacon of a beacon tower, commands
// can be run to create protections on each layer of the beacon.
//
/////////////////////////////////////////////////////////////////////*/

importPackage(Packages.com.sk89q.worldedit);

var session = context.getSession();
var region = session.getRegion();

context.checkArgs(1, -1, "                                                                                                      1) define <id> <height not including beacon> <owner> [owner] [owner]...                                                                                                   2) delete <id> <height not including beacon>                                    3) add <id> <height not including beacon. If unknown, enter 4> <owner> [owner] [owner]...                                                                       4) remove <id> <height not including beacon. If unknown, enter 4> <owner> [owner] [owner]...");
if(argv[1] == "define") {
    for (var g = argv[3];g>0;g--) {
        var id = argv[2];
        var c = region.getMinimumPoint().getY() - 1;
        var xmin = region.getMinimumPoint().getX();
        var zmin = region.getMinimumPoint().getZ();
        var xmax = region.getMaximumPoint().getX();
        var zmax = region.getMaximumPoint().getZ();
        var xmin = xmin - 1;
        var zmin = zmin - 1;
        var xmax = xmax + 1;
        var zmax = zmax + 1;
        var amin = Vector(xmin, c, zmin);
        region.setPos1(amin);
        var amax = Vector(xmax, c, zmax);
        region.setPos2(amax);
        var owners = "";
        for (h=4;h<15;h++) {
            if (typeof argv[h] !== 'undefined') {
            owners = owners + argv[h] + " "
            }
        }
        player.getPlayer().chat("/region define " + id + "_" + g +  " " + owners);
    }
}

if(argv[1] == "delete") {
    if (typeof argv[3] == 'undefined') {
        for (var j = 4;j>0;j--) {
        player.getPlayer().chat("/region remove " + argv[2] + "_" + j);
        }
    }
    else {
        for (var i = argv[3];i>0;i--) {
        player.getPlayer().chat("/region remove " + argv[2] + "_" + i);
        }
    }
}

if(argv[1] == "add") {

    for (var k = 4;k>0;k--) {
        var addowners = "";
        for (l=4;l<15;l++) {
            if (typeof argv[l] !== 'undefined') {
            addowners = addowners + argv[l] + " ";
            }
        }
    player.getPlayer().chat("/region addowner " + argv[2] + "_" + k + " " + addowners);
    }
}
if(argv[1] == "remove") {
    for (var k = 4;k>0;k--) {
        var removeowners = "";
        for (m=4;m<15;m++) {
            if (typeof argv[m] !== 'undefined') {
            removeowners = removeowners + argv[m] + " ";
            }
        }
    player.getPlayer().chat("/region removeowner " + argv[2] + "_" + k + " " + removeowners);
    }
}