jQuery: Access frame in nested frameset

Question

I have a document which has a nested frameset. I need to access one of the nested frames, named \"sq_main\", and access content inside this frame. Here is my structure:

Answer 1

var sql_mainJQ = $("frame[name='sql_main']", top.document);

//$('body', sql_mainJQ.contents()).prepend("TEST!!!!"); // :( Bad

var frameContent = sql_mainJQ[0].contentDocument;
if ($.browser.msie) {
    frameContent = mainFrameJQ[0].contentWindow.document;
} else {
    frameContent = mainFrameJQ[0].contentDocument;
}
$('body', sql_mainJQ.contents()).prepend("TEST!!!!"); // :> Maybe OK!