var maxIframeHeight = 300;
function resizeTB(newHeight) {
    //var temp = $J('#TB_iframeContent').length; 
    //alert('Iframe content found: '+ temp);


    if (newHeight < maxIframeHeight) {
        $J('#TB_iframeContent').css('height', newHeight + 'px');
    } else {
        $J('#TB_iframeContent').css('height', maxIframeHeight + 'px');
    }

}