[рони]

karakym,
а так?

function iframeLoaded() {
        var frame = document.getElementById('connector');
        innerDoc = (frame.contentDocument) ? frame.contentDocument : frame.contentWindow.document;
    objToResize = (frame.style) ? frame.style : frame;
    objToResize.height = 0;
    objToResize.height = innerDoc.documentElement.offsetHeight+'px';
    frame.style.display = 'block'
    }