function recalcularAltura() {
    if (document.getElementById("ctl00_ContentPlaceHolder1_panellsubMenu") && document.getElementById("ctl00_ContentPlaceHolder1_panellDades"))
        document.getElementById("ctl00_ContentPlaceHolder1_panellsubMenu").style.height = document.getElementById("ctl00_ContentPlaceHolder1_panellDades").offsetHeight;
}