var status = 0;

function start() {
    status = -1;
    action(1, 0, 0);
}

function action(mode, type, selection) {
    if (mode == -1) {
        cm.dispose();
    } else {
        if (mode == 0 && status == 1) {
            cm.dispose();
            return;
        }
        if (mode == 1)
            status++;
        else
            status--;
            if (status == 0) {
		cm.sendNext("Hello there #e#h ##n, I am the Practice Scripting NPC. What would you like to learn today? \r\n\r\n #L0#Teach me how to Script an NPC#l \r\n #L1#Learn from #bAngel#k#l \r\n #L2#Nevermind#l");
	    } else if (status == 1) {
		if (selection == 0) {
			cm.sendSimple("Sorry, I'm currently out of lessons to give. See you next year!");
		cm.dispose();
	    } else if (status == 2) {
		if (selection == 1) {
			cm.sendSimple("Excellent! #bAngel#k is probably at #rhome#k.");
		cm.dispose();
	    } else if (status == 3) {
		if (selection == 2) {
			cm.sendSimple("A wise choice, my young friend.");
		cm.dispose();
		}
	    }
	}
    }
}