var ie = document.all ? 1 : 0;
// Creates a popup window
function open_window(url, width, height, scroll)
{
    var LEFT = 100;
    var TOP  = 100;

    if (scroll == null)
    {
        scroll = 1;
    }

    if(window.screen)
    {
        LEFT = (window.screen.width - width)  / 2;
        TOP  = (window.screen.height - height) / 2;
    }

    var NEW_WIN                     = null;
    NEW_WIN                         = window.open("", "", "toolbar=no,width=" + width + ",height=" + height + ",directories=no,status=no,scrollbars=" + scroll + ",resize=yes,menubar=no,left=" + LEFT + ",top=" + TOP);
    NEW_WIN.document.location.href  = url;
    NEW_WIN.focus();

    return;
}// Changes the file name in the remote file field
function set_remotename()
{
    if (window.document.forms["popup"].elements["local"].value != null)
    {
        // Now set the remote file name
        window.document.forms["popup"].elements["remote"].value = window.document.forms["popup"].elements["local"].value.substr(window.document.forms["popup"].elements["local"].value.lastIndexOf("\\") + 1, window.document.forms["popup"].elements["local"].value.length);

        // If the remote file name is still the same as the local file name then the user isn't running on Windows so try a different way
        if (window.document.forms["popup"].elements["remote"].value == window.document.forms["popup"].elements["local"].value)
        {
            window.document.forms["popup"].elements["remote"].value = window.document.forms["popup"].elements["local"].value.substr(window.document.forms["popup"].elements["local"].value.lastIndexOf("/") + 1, window.document.forms["popup"].elements["local"].value.length);
        }
    }
    return false;
}

// Displays the multi file upload window
function multi_uploads()
{
    var dir = window.document.forms["popup"].elements["dir"].value;

    open_window("index.php?act=card&id=mup&dir=" + dir, 500, 300);
    window.close();
}

// Displays the single file upload window
function single_upload()
{
    var dir = window.document.forms["popup"].elements["dir"].value;

    open_window("index.php?act=card&id=up&dir=" + dir, 500, 250);
    window.close();
}

// Submits the Popup windows notes
function submitPopup()
{
    window.document.forms["popup"].elements["submit"].disabled  = true;

    window.setTimeout("window.close();", "100"); // We need to use a timer, overwise mozilla will not submit the form

    return;
}

// Submits the "jump" form on the move dialog
function jumpTo()
{
    window.document.forms["popup"].elements["dir"].value         = window.document.forms["jumpdir"].elements["jumpdir"].value;
    window.document.forms["jumpdir"].elements["submit"].disabled = true;
    window.document.forms["popup"].submit();

    return false;
}

// Submits the "bookmark" form on the move dialog
function jumpToBookmark()
{
    var bookmark = window.document.forms["bookmarks"].elements["bookmark"].options[window.document.forms["bookmarks"].elements["bookmark"].selectedIndex].value;

    if (bookmark == "")
    {
        return false;
    }

    window.document.forms["popup"].elements["dir"].value           = bookmark;
    window.document.forms["bookmarks"].elements["submit"].disabled = true;
    window.document.forms["popup"].submit();

    return false;
}

// Submits the main form on the move dialog
function submitMoveDialog()
{
    if (window.document.forms["popup"].elements["dir"].value == window.document.forms["popup"].elements["target"].value)
    {
        alert("<%SOURCE_IS_TARGET%>");
        return;
    }

    window.document.forms["popup"].elements["act"].value         = "list";
    window.document.forms["confirm"].elements["submit"].disabled = true;

    window.document.forms["popup"].submit();

    window.setTimeout("window.close();", "100"); // We need to use a timer, overwise mozilla will not submit the form

    return;
}

// Submits the main form on the extract dialog
function submitExtractDialog()
{
    window.document.forms["confirm"].elements["submit"].disabled = true;

    window.setTimeout("window.close();", "100"); // We need to use a timer, overwise mozilla will not submit the form

    return;
}

// Submits the main form on the link dialog
function submitLinkDialog()
{
    // var regExp = /[\/:*?\\\"<>|%]/i;
    var regExp = /^[a-zA-Z0-9\._\(\)\-\s]+$/;

    // Check for a file name
    if (regExp.test(window.document.forms["confirm"].elements["name"].value) == false || window.document.forms["confirm"].elements["name"].value.length == 0)
    {
        alert("<%INVALID_LINK_NAME%>");
        window.document.forms["confirm"].elements["name"].select();
        return;
    }

    window.document.forms["popup"].elements["name"].value        = window.document.forms["confirm"].elements["name"].value;
    window.document.forms["popup"].elements["act"].value         = "list";
    window.document.forms["confirm"].elements["submit"].disabled = true;
    // window.document.forms["popup"].target                        = "mainWindow";

    window.document.forms["popup"].submit();

    window.setTimeout("window.close();", "100"); // We need to use a timer, overwise mozilla will not submit the form

    return;
}

// Updates the CHMOD value
function chmod(field, value)
{
    // We have 2 fields, 1 showing the 'actual' value, and one containing the numeric value
    var current = window.document.forms["popup"].elements["numeric"].value;

    current     = parseInt(current);
    value       = parseInt(value);

    if (field.checked == true)
    {
        window.document.forms["popup"].elements["numeric"].value = current + value;
    }
    else
    {
        window.document.forms["popup"].elements["numeric"].value = current - value;
    }

    window.document.forms["popup"].elements["decimal"].value =  window.document.forms["popup"].elements["numeric"].value;
    while (window.document.forms["popup"].elements["decimal"].value.length < 3)
    {
        window.document.forms["popup"].elements["decimal"].value = "0" + window.document.forms["popup"].elements["decimal"].value;
    }
}

// Closes the dialog and refreshes the main page
function cancel_dialog()
{
    window.opener.location = window.opener.location;
    window.close();
    return;
}

// Checks that the CHMOD value is valid
function checkCHMOD()
{
    var chmod = window.document.forms["popup"].elements["decimal"].value;

    if (chmod == "" || chmod == "000")
    {
        return false;
    }
    if (isNaN(chmod) || (chmod == "") || (chmod.length != 3) || !isChmod(chmod))
    {
        window.alert("<%INVALID_CHMOD%>")
        return false;
    }
    else
    {
        return submitPopup();
    }
}

// Checks that the CHMOD value is valid
function isChmod(chmod)
{
    if (!chmod)
    {
        return false;
    }
    for (i=0; i<chmod.length; i++)
    {
        if (chmod.charAt(i) < "0")
        {
            return false;
        }
        if (chmod.charAt(i) > "7")
        {
            return false;
        }
    }
    return true;
}

// Check the username/password on the htaccess dialog
function checkAuth()
{
    var fields = window.document.getElementsByTagName("input");

    var usernames = new Array();

    if (window.document.forms["popup"].elements["prompt"].value == "")
    {
        alert("<%PROMPT_NEEDED%>");
        window.document.forms["popup"].elements["prompt"].select();

        return false
    }

    for (var i=0; i < fields.length; i++)
    {
        if (fields[i].type == "text")
        {
            if (fields[i].value.match(":"))
            {
                alert("<%INVALID_CHARACTER%>");
                fields[i].select();

                return false;
            }
            else if (typeof usernames[fields[i].value] != "undefined")
            {
                alert("<%USERNAME_EXISTS%>");
                fields[i].select();

                return false;
            }
            else if (fields[i].value != "")
            {
                // Add the username to the username array
                usernames[fields[i].value] = fields[i].value;
            }
        }
        else if (fields[i].type == "password")
        {
            if (fields[i].value.match(":"))
            {
                alert("<%INVALID_CHARACTER%>");
                fields[i].select();

                return false;
            }
        }
    }

    return submitPopup();
}