function loadlayer(message) {
    document.getElementById('loading').innerHTML = "<div class=\"loadlayer\">"+message+"</div>";
}

function destroylayer() {
    document.getElementById('loading').innerHTML = "";
}

function delfile(message, link) {
    check = confirm(message);
    if(check === true) {
        location.href = link;
    }
}

function mark(state){
    var checkboxes=document.getElementsByName('fileid[]');
    for(var n=0; n<checkboxes.length; n++){
        checkboxes[n].checked=state;
    }
}