Get text from input TextFields by instance name

Hey, I have problem.. I know its simply thing, but 2 hours I cant do this:

for (var i = 0; i < REDquestionsLineArray.length; ++i) {

            var REDqText:TextField = new TextField();

            REDqText.name = "REDqestText" + ;

            window.addChild(REDqText);

            REDqText.text = String(REDquestionsLine);

            trace(REDqText.name);

            trace(REDqText.text);

}

var REDquestLine = [];

var saveREDquestionsLine:String

function save_REG_questions(e:MouseEvent):void{

    saveREDquestionsLine = "";

    for (var i = 0; i < REDquestionsLineArray.length; ++i) {

        REDquestLine = HOW TO GET TEXT STRVING FROM THEESE ("REDqestText" + ;)INPUT TEXTFIELDS?

        trace(REDquestLine);

    }

}