How do I write this as a loop?

Question

How do I write this code to function as follows.
When btn1 is clicked, SenderLoad should be "clay" AND when btn2 is clicked, SenderLoad should be "iron", etc...
var mgB:Array = [btn1, btn2, btn3, btn4];
var mgBW:Array = ["clay", "iron", "cotton", "leather"];
var SenderLoad:LoadVars = new LoadVars();
var ReceLoad:LoadVars = new LoadVars();
var mgNum:Number=0;
for (i=0; i<mgBW.length ; i++){
mgBW[i].onRelease = function () {
mgNum++
SenderLoad.word = mgB[mgNum];
SenderLoad.sendAndLoad("http://www.web.com/my.php",ReceLoad,"POST");
ReceLoad.onData = function(src) {
var messageA:Array = src.split(",,,");
ldrB2.html=true;
for(var i:Number=0; i<messageA.length; i++){
           var a:Array=messageA[i].split(",,");
   ldrB1.htmlText +=a[0];
   ldrB2.htmlText +=a[1];

Answer 1

if you want different words in different colors you can use:
ldrB1.html=true;
ldrB1.text = formatF("REJECT",0xff0000,ldrB1)
ldrB1.text = formatF("ACCEPT",0x000000,ldrB1);
ldrB1.text = "formatF("BANNED",0xc0c0c0,ldrB1);
function formatF(s:String, col:Number, tf:TextField):Void {
if(tf.text.indexOf(s)==-1){
return;
    tfor.color = col;
    var startindex:Number = 0;
    while (startindex>-1 && startindex<tf.text.length-1) {
        var bindex:Number = tf.text.indexOf(s, startindex);
        var eindex:Number = bindex+s.length;
        tf.setTextFormat(bindex,eindex,tfor);
        startindex = eindex;
var tfor:TextFormat = new TextFormat();