function adjustIFrameSize(iframeWindow) { 
    if(!iframeWindow.name) iframeWindow = document.getElementById("bbs").contentWindow; 
    if(iframeWindow.document.height) { 
        var iframeElement = document.getElementById(iframeWindow.name); 
        iframeElement.style.height = iframeWindow.document.height + 15 + 'px'; 
        //iframeElement.style.width  = iframeWindow.document.width + 15 + 'px'; 
    } else if(document.all) { 
        var iframeElement = document.all[iframeWindow.name]; 
        if(iframeWindow.document.compatMode && iframeWindow.document.compatMode != 'BackCompat') { 
            iframeElement.style.height = iframeWindow.document.documentElement.scrollHeight + 5 + 'px'; 
            //iframeElement.style.width  = iframeWindow.document.documentElement.scrollWidth + 5 + 'px'; 
        } 
        else { 
            iframeElement.style.height = iframeWindow.document.body.scrollHeight + 5 + 'px'; 
            //iframeElement.style.width  = iframeWindow.document.body.scrollWidth + 5 + 'px'; 
        } 
    } 
}