var startIndex = 0;
fl.getDocumentDOM().selectAll();
var theSelectionArray = fl.getDocumentDOM().selection;
for(var i = 0; i < theSelectionArray.length; i++){
        fl.getDocumentDOM().selectNone();
        fl.getDocumentDOM().selection = [theSelectionArray[i]];
        fl.getDocumentDOM().convertToSymbol("movie clip", "textfield" + startIndex, "top left");
        startIndex++;
}