function are_you_sure(){
    if (confirm("Are you sure?")) {
	    return true;
    }else {
        return false;
    }
}

function checkTitle(error) {
    document.getElementById('err').innerHTML = (document.getElementById('title').value == '' ? error : '')
}

function checkAll() {
    for (var i=0;i<document.actitems.elements.length;i++) {
        var e=document.actitems.elements[i];
        if ((e.name != 'allbox') && (e.type=='checkbox')) {
            e.checked=document.actitems.allbox.checked;
        }
    }
}
function checkForAll() {
    var all = true;
    for (var i=0;i<document.actitems.elements.length;i++) {
        var e=document.actitems.elements[i];
        if ((e.name != 'allbox') && (e.type=='checkbox')) {
            if (!e.checked) {
                document.actitems.allbox.checked = false;
                all = false;
                break;
            }
        }
    }
    
    if (all) {
        document.actitems.allbox.checked = true;
    }
}

function doAction(act) {
    var num = 0;
    for (var i=0; i < document.actitems.elements.length; i++) {
        var e = document.actitems.elements[i];
        if ((e.name != 'allbox') && (e.type=='checkbox')) {
            if ( e.checked ) {
                num++;
            }
        }
    }
    
    if (num > 0)
    {
        if (act == 'delete') {
            if (confirm('You want to delete (' + num + ') E-mails. Are you sure?')) {
                document.getElementById('wdo').value = 'delete';
                document.actitems.submit();
            }
        }
        else {
            document.getElementById('wdo').value = 'edit';
            document.actitems.submit();
            return true;
        }
    }
    else {
        alert("There are no one record has been checked.");
        return false;
    }
}