how to change radiobutton size and label size in actionscript.?

I am trying to change my radiobutton size and label size in pure as3...

searchRB = new RadioButton();
    searchRB.name = "search";
    searchRB.group = rbg;
    searchRB.label="Search";
    se开发者_高级运维archRB.labelPlacement=ButtonLabelPlacement.BOTTOM;
    searchRB.selected = true;
    searchRB.move(0, (searchInput.y + searchInput.height/3) );
    searchRB.se

//Anyone knows how to do it? Thanks...

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IS there any reason why this wouldn't work?

searchRB.width = someNewInteger;
searchRB.height = someNewInteger;