actionscript 2.0 input text box - variables

Question

So, here's what I'm trying to do, and I, frankly, believe it should be obvious, but I can't figure it out. I am creating a very simple Artificial Intelligence simulation. And in this simulation there's an input box at the bottom of the screen (called "input" exactly). "input" has a variable in its properties that is called "inbox" (exactly). Using a key listener the script calls up a function when the enter button is pressed. This function has 2 if statements and an else statement which dictate the responses of the AI (named "nistra"). The problem is this, When I type in what I want to say, and hit enter, it always uses the second response ("lockpick" in the code below). I have tried variations on the code but I still don't see the solution. I believe the problem is that the "typein" variable holds all the format information from the text box as well as the variable, but I could be wrong, that information is in here as well, underneath the code itself. Any help I can get would be greatly appreciated.
var typein = ""; //copies the text from inbox into here, this is what nistra responds to
var inbox = ""; //this is where the text from the input text box goes
var respond = ""; //nistra's responses go here
my_listener = new Object(); // key listener
my_listener.onKeyDown = function()
{
if(Key.isDown(13)) //enter button pressed
{
typein = inbox; // moves inbox into typein
nistraresponse(); // calles nistra's responses
}
//code = Key.getCode();
//trace ("Key pressed = " + code);
}
Key.addListener(my_listener); // key listener ends here
nistraresponse = function() // nistra's responses
{
trace(typein); // trace out what "typein" holds
if(typein = "Hello") // if you type in "Hello"
{
respond = "Hello, How are you?";
}
if(typein = "lockpick") // if you type in "lockpick"
{
respond = "Affirmative";
}
else // anything else
{
respond = "I do not understand the command, please rephrase";
}
cntxtID = setInterval(clearnistra, 5000); // calls the function that clears out nistra's response box so that her responses don't just sit there
}
clearnistra = function() // clears her respond box
{
respond = "";
clearInterval(cntxtID);
}
// "typein" traces out the following
<TEXTFORMAT LEADING="2"><P ALIGN="CENTER"><FONT FACE="Times New Roman" SIZE="20" COLOR="#FF0000" LETTERSPACING="0" KERNING="0">test</FONT></P></TEXTFORMAT>

Answer 1

Since ActionScript is based on ECMAScript I'm pretty sure that you need to use == instead of = for equality comparison.
Right now your code works like this:
if(typein = "Hello") { // assign "Hello" to typein. always true.
respond = "Hello, How are you?";
}
if(typein = "lockpick") { // assign "lockpick" tot ypein. always true.
respond = "Affirmative";
}
// the else block is always false for obvious reasons
So you simply need to change the code like this:
if(typein == "Hello") {
respond = "Hello, How are you?";
}
else if(typein == "lockpick") {
respond = "Affirmative";
}
else {
respond = "I do not understand the command, please rephrase";
}