function showhide(id){
    if (document.getElementById){
        obj = document.getElementById(id);
        
        if (obj.style.display == "none"){
            obj.style.display = "";
        } else {
            obj.style.display = "none";
        }
    }
}

function adjustIFrameSize (iframe)
{
    if ( iframe.contentDocument ) // firefox
    {
        iframe.height = iframe.contentDocument.documentElement.scrollHeight + 30;
    }
    else // IE
    {
        iframe.style.height =
        iframe.contentWindow.document.body.scrollHeight;
    }
}