function changeDiv(n) {
    if(n == 5) {
        document.getElementById('submenu_'+n).style.display='block';
        document.getElementById('submenu_7').style.display='none';
        document.getElementById('submenu_9').style.display='none';
        document.getElementById('submenu_11').style.display='none';
        document.getElementById('submenu_13').style.display='none';
        document.getElementById('submenu_15').style.display='none';
        document.getElementById('block1').className='active navblock';
        document.getElementById('block2').className='nonactive navblock';
        document.getElementById('block3').className='nonactive navblock';
        document.getElementById('block4').className='nonactive navblock';
        document.getElementById('block5').className='nonactive navblock';
        document.getElementById('block6').className='nonactive navblock';
        document.getElementById('mediumnav_5').className='medium_active mediumnav';
        document.getElementById('mediumnav_7').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_9').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_11').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_13').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_15').className='medium_nonactive mediumnav';
    } else if(n == 7) {
        document.getElementById('submenu_'+n).style.display='block';
        document.getElementById('submenu_5').style.display='none';
        document.getElementById('submenu_9').style.display='none';
        document.getElementById('submenu_11').style.display='none';
        document.getElementById('submenu_13').style.display='none';
        document.getElementById('submenu_15').style.display='none';
        document.getElementById('block2').className='active navblock';
        document.getElementById('block1').className='nonactive navblock';
        document.getElementById('block3').className='nonactive navblock';
        document.getElementById('block4').className='nonactive navblock';
        document.getElementById('block5').className='nonactive navblock';
        document.getElementById('block6').className='nonactive navblock';
        document.getElementById('mediumnav_5').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_7').className='medium_active mediumnav';
        document.getElementById('mediumnav_9').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_11').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_13').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_15').className='medium_nonactive mediumnav';
    } else if(n == 9) {
        document.getElementById('submenu_'+n).style.display='block';
        document.getElementById('submenu_5').style.display='none';
        document.getElementById('submenu_7').style.display='none';
        document.getElementById('submenu_11').style.display='none';
        document.getElementById('submenu_13').style.display='none';
        document.getElementById('submenu_15').style.display='none';
        document.getElementById('block3').className='active navblock';
        document.getElementById('block1').className='nonactive navblock';
        document.getElementById('block2').className='nonactive navblock';
        document.getElementById('block4').className='nonactive navblock';
        document.getElementById('block5').className='nonactive navblock';
        document.getElementById('block6').className='nonactive navblock';
        document.getElementById('mediumnav_5').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_7').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_9').className='medium_active mediumnav';
        document.getElementById('mediumnav_11').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_13').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_15').className='medium_nonactive mediumnav';
    } else if(n == 11) {
        document.getElementById('submenu_'+n).style.display='block';
        document.getElementById('submenu_5').style.display='none';
        document.getElementById('submenu_7').style.display='none';
        document.getElementById('submenu_9').style.display='none';
        document.getElementById('submenu_13').style.display='none';
        document.getElementById('submenu_15').style.display='none';
        document.getElementById('block4').className='active navblock';
        document.getElementById('block1').className='nonactive navblock';
        document.getElementById('block2').className='nonactive navblock';
        document.getElementById('block3').className='nonactive navblock';
        document.getElementById('block5').className='nonactive navblock';
        document.getElementById('block6').className='nonactive navblock';
        document.getElementById('mediumnav_5').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_7').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_9').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_11').className='medium_active mediumnav';
        document.getElementById('mediumnav_13').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_15').className='medium_nonactive mediumnav';
    } else if(n == 13) {
        document.getElementById('submenu_'+n).style.display='block';
        document.getElementById('submenu_5').style.display='none';
        document.getElementById('submenu_7').style.display='none';
        document.getElementById('submenu_9').style.display='none';
        document.getElementById('submenu_11').style.display='none';
        document.getElementById('submenu_15').style.display='none';
        document.getElementById('block5').className='active navblock';
        document.getElementById('block1').className='nonactive navblock';
        document.getElementById('block2').className='nonactive navblock';
        document.getElementById('block3').className='nonactive navblock';
        document.getElementById('block4').className='nonactive navblock';
        document.getElementById('block6').className='nonactive navblock';
        document.getElementById('mediumnav_5').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_7').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_9').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_11').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_13').className='medium_active mediumnav';
        document.getElementById('mediumnav_15').className='medium_nonactive mediumnav';
    } else if(n == 15) {
        document.getElementById('submenu_'+n).style.display='block';
        document.getElementById('submenu_5').style.display='none';
        document.getElementById('submenu_7').style.display='none';
        document.getElementById('submenu_9').style.display='none';
        document.getElementById('submenu_11').style.display='none';
        document.getElementById('submenu_13').style.display='none';
        document.getElementById('block1').className='nonactive navblock';
        document.getElementById('block2').className='nonactive navblock';
        document.getElementById('block3').className='nonactive navblock';
        document.getElementById('block4').className='nonactive navblock';
        document.getElementById('block5').className='nonactive navblock';
        document.getElementById('block6').className='active navblock';
        document.getElementById('mediumnav_5').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_7').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_9').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_11').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_13').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_15').className='medium_active mediumnav';
    } else {
        document.getElementById('submenu_5').style.display='none';
        document.getElementById('submenu_7').style.display='none';
        document.getElementById('submenu_9').style.display='none';
        document.getElementById('submenu_11').style.display='none';
        document.getElementById('submenu_13').style.display='none';
        document.getElementById('submenu_15').style.display='none';
        document.getElementById('mediumnav_5').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_7').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_9').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_11').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_13').className='medium_nonactive mediumnav';
        document.getElementById('mediumnav_15').className='medium_nonactive mediumnav';
        document.getElementById('block1').className='nonactive navblock';
        document.getElementById('block2').className='nonactive navblock';
        document.getElementById('block3').className='nonactive navblock';
        document.getElementById('block4').className='nonactive navblock';
        document.getElementById('block5').className='nonactive navblock';
        document.getElementById('block6').className='nonactive navblock';
    }
}

function changeDivOut() {
    document.getElementById('submenu_5').style.display='none';
    document.getElementById('submenu_7').style.display='none';
    document.getElementById('submenu_9').style.display='none';
    document.getElementById('submenu_11').style.display='none';
    document.getElementById('submenu_13').style.display='none';
    document.getElementById('submenu_15').style.display='none';
    document.getElementById('mediumnav_5').className='medium_nonactive mediumnav';
    document.getElementById('mediumnav_7').className='medium_nonactive mediumnav';
    document.getElementById('mediumnav_9').className='medium_nonactive mediumnav';
    document.getElementById('mediumnav_11').className='medium_nonactive mediumnav';
    document.getElementById('mediumnav_13').className='medium_nonactive mediumnav';
    document.getElementById('mediumnav_15').className='medium_nonactive mediumnav';
    document.getElementById('block1').className='nonactive navblock';
    document.getElementById('block2').className='nonactive navblock';
    document.getElementById('block3').className='nonactive navblock';
    document.getElementById('block4').className='nonactive navblock';
    document.getElementById('block5').className='nonactive navblock';
    document.getElementById('block6').className='nonactive navblock';
}

function clear_text() {
    var search_input = document.getElementById("keyword");
    search_input.value = "";
}