AS2 - array loop to change variables?

The plan is to set up variables to react to a flashvars value like this:

Code:

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<param name="flashvars" value="mainVars=1" />

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Code:

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var videoArray:Array;
var videoTitle:String;
var videoFile:String;

videoArray=[0,1];

function onEnterFrame(){
        for(var i=videoArray.length-1;i>0;i++){
                while(i==_root.mainVar-1){
                        if(i==0){
                                videoTitle="Show the video's change";
                                videoFile="VID";
                        }
                        else if(i==1){
                                videoTitle="This is the second one";
                                videoFile="promo";
                        }
                }
        }
}

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There would be many mainVars (over 100, actually) and this setup isn't working. Could someone please help fix this problem?

It would probably be easier to load that many variables in a XML file. The XML file obviously can be created dynamically. I think that would be the easiest, simplistic, way to accomplish what you what to accomplish.