[jQuery] Getting an iframes title?

[Shedokan]

I have an iframe and I want to get it's title:
        <div class="frame-cont" style="display:block;height:100%">
                <iframe src="http://google.com"; width="100%" height="100%"
style="display:block" marginwidth="0" marginheight="0" hspace="0"
vspace="0" frameborder="0"></iframe>
        </div>


but I can't seem to get it using these:
$('iframe')[0].contentWindow.document;
$('iframe').contents().find("body").html();
$('.frame-cont iframe').contents()[0].document.title;
$('.frame-cont iframe:first')[0].document.title;

how can I get it's title?