//Content-type: text/js
// Original:  Angus Turnbull -->
// Web Site:  http://gusnz.cjb.net -->

// This script and many more are available free online at -->
//-- The JavaScript Source!! http://javascript.internet.com -->

//-- Begin
var isDOM = (document.getElementById ? true : false);
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);

function getRef(id)
{
    if (isDOM) return document.getElementById(id);
    if (isIE4) return document.all[id];
    if (isNS4) return document.layers[id];
}
function getSty(id)
{
    return (isNS4 ? getRef(id) : getRef(id).style);
}
// Hide timeout.
var popTimer = 0;
// Array showing highlighted menu items.
var litNow = new Array();

function popOver(menuNum, itemNum)
{
    clearTimeout(popTimer);
    hideAllBut(menuNum);
    litNow = getTree(menuNum, itemNum);
    changeCol(litNow, true);
    targetNum = menu[menuNum][itemNum].target;
    if (targetNum > 0)
    {
        thisX = parseInt(menu[menuNum][0].ref.left) + parseInt(menu[menuNum][itemNum].ref.left);
        thisY = parseInt(menu[menuNum][0].ref.top) + parseInt(menu[menuNum][itemNum].ref.top);
        with (menu[targetNum][0].ref)
        {
            left = parseInt(thisX + menu[targetNum][0].x);
            top = parseInt(thisY + menu[targetNum][0].y);
            visibility = 'visible';
        }
    }
}

function popOut(menuNum, itemNum)
{
    if ((menuNum == 0) && !menu[menuNum][itemNum].target)
        hideAllBut(0);
    else
        popTimer = setTimeout('hideAllBut(0)', 500);
}

function getTree(menuNum, itemNum)
{

// Array index is the menu number. The contents are null (if that menu is not a parent)
// or the item number in that menu that is an ancestor (to light it up).
    itemArray = new Array(menu.length);

    while(1)
    {
        itemArray[menuNum] = itemNum;
        // If we've reached the top of the hierarchy, return.
        if (menuNum == 0) return itemArray;
        itemNum = menu[menuNum][0].parentItem;
        menuNum = menu[menuNum][0].parentMenu;
    }
}

// Pass an array and a boolean to specify colour change, true = over colour.
function changeCol(changeArray, isOver)
{
    for (menuCount = 0; menuCount < changeArray.length; menuCount++)
    {
        if (changeArray[menuCount])
        {
            newCol = isOver ? menu[menuCount][0].overCol : menu[menuCount][0].backCol;
            // Change the colours of the div/layer background.
            with (menu[menuCount][changeArray[menuCount]].ref)
            {
                if (isNS4)
                    bgColor = newCol;
                else
                    backgroundColor = newCol;
            }
        }
    }
}

function hideAllBut(menuNum)
{
    var keepMenus = getTree(menuNum, 1);
    for (count = 0; count < menu.length; count++)
        if (!keepMenus[count])
            menu[count][0].ref.visibility = 'hidden';
    changeCol(litNow, false);
}

// *** MENU CONSTRUCTION FUNCTIONS ***

function Menu(isVert, popInd, x, y, width, overCol, backCol, borderClass, textClass)
{
    // True or false - a vertical menu?
    this.isVert = isVert;
    // The popout indicator used (if any) for this menu.
    this.popInd = popInd
    // Position and size settings.
    this.x = x;
    this.y = y;
    this.width = width;
    // Colours of menu and items.
    this.overCol = overCol;
    this.backCol = backCol;
    // The stylesheet class used for item borders and the text within items.
    this.borderClass = borderClass;
    this.textClass = textClass;
    // Parent menu and item numbers, indexed later.
    this.parentMenu = null;
    this.parentItem = null;
    // Reference to the object's style properties (set later).
    this.ref = null;
}

function Item(text, href, frame, length, spacing, target)
{
    this.text = text;
    this.href = href;
    this.frame = frame;
    this.length = length;
    this.spacing = spacing;
    this.target = target;
    // Reference to the object's style properties (set later).
    this.ref = null;
}

function writeMenus()
{
    if (!isDOM && !isIE4 && !isNS4) return;

    for (currMenu = 0; currMenu < menu.length; currMenu++) with (menu[currMenu][0])
    {
        // Variable for holding HTML for items and positions of next item.
        var str = '', itemX = 0, itemY = 0;

        // Remember, items start from 1 in the array (0 is menu object itself, above).
        // Also use properties of each item nested in the other with() for construction.
        for (currItem = 1; currItem < menu[currMenu].length; currItem++)
            with (menu[currMenu][currItem])
            {
                var itemID = 'menu' + currMenu + 'item' + currItem;

                // The width and height of the menu item - dependent on orientation!
                var w = (isVert ? width : length);
                var h = (isVert ? length : width);


                // Create a div or layer text string with appropriate styles/properties.
                // Thanks to Paul Maden (www.paulmaden.com) for helping debug this in IE4, apparently
                // the width must be a miniumum of 3 for it to work in that browser.
                if (isDOM || isIE4)
                {
                    str += '<div id="' + itemID + '" style="position: absolute; left: ' + itemX + '; top: ' + itemY + '; width: ' + w + '; height: ' + h + '; visibility: inherit; ';
                    if (backCol)
                        str += 'background: ' + backCol + '; ';
                    str += '" ';
                }
                if (isNS4)
                {
                    str += '<layer id="' + itemID + '" left="' + itemX + '" top="' + itemY + '" width="' +  w + '" height="' + h + '" visibility="inherit" ';
                    if (backCol)
                        str += 'bgcolor="' + backCol + '" ';
                }
                if (borderClass)
                    str += 'class="' + borderClass + '" ';

                // Add mouseover handlers and finish div/layer.
                str += 'onMouseOver="popOver(' + currMenu + ',' + currItem + ')" onMouseOut="popOut(' + currMenu + ',' + currItem + ')">';

                // Add contents of item (default: table with link inside).
                // In IE/NS6+, add padding if there's a border to emulate NS4's layer padding.
                // If a target frame is specified, also add that to the <a> tag.

                str += '<table width="' + (w - 8) + '" border="0" cellspacing="0" cellpadding="' + (!isNS4 && borderClass ? 3 : 0) + '"><tr><td align="left" height="' + (h - 7) + '">' + '<a class="menu" href="' + href + '"' + (frame ? ' target="' + frame + '">' : '>') + text + '</a></td>';
                if (target > 0)
                {

                    // Set target's parents to this menu item.
                    menu[target][0].parentMenu = currMenu;
                    menu[target][0].parentItem = currItem;

                    // Add a popout indicator.
                    if (popInd)
                        str += '<td class="' + textClass + '" align="right">' + popInd + '</td>';
                }
                str += '</tr></table>' + (isNS4 ? '</layer>' : '</div>');
                if (isVert)
                    itemY += length + spacing;
                else
                    itemX += length + spacing;
            }
        if (isDOM)
        {
            var newDiv = document.createElement('div');
            document.getElementsByTagName('body').item(0).appendChild(newDiv);
            newDiv.innerHTML = str;
            ref = newDiv.style;
            ref.position = 'absolute';
            ref.visibility = 'hidden';
        }

        // Insert a div tag to the end of the BODY with menu HTML in place for IE4.
        if (isIE4)
        {
            document.body.insertAdjacentHTML('beforeEnd', '<div id="menu' + currMenu + 'div" ' + 'style="position: absolute; visibility: hidden">' + str + '</div>');
            ref = getSty('menu' + currMenu + 'div');
        }

        // In NS4, create a reference to a new layer and write the items to it.
        if (isNS4)
        {
            ref = new Layer(0);
            ref.document.write(str);
            ref.document.close();
        }

        for (currItem = 1; currItem < menu[currMenu].length; currItem++)
        {
            itemName = 'menu' + currMenu + 'item' + currItem;
            if (isDOM || isIE4)
                menu[currMenu][currItem].ref = getSty(itemName);
            if (isNS4)
                menu[currMenu][currItem].ref = ref.document[itemName];
        }
    }
    with(menu[0][0])
    {
        ref.left = x;
        ref.top = y;
        ref.visibility = 'visible';
    }
}

// Syntaxes: *** START EDITING HERE, READ THIS SECTION CAREFULLY! ***
//
// menu[menuNumber][0] = new Menu(Vertical menu? (true/false), 'popout indicator', left, top,
// width, 'mouseover colour', 'background colour', 'border stylesheet', 'text stylesheet');
//
// Left and Top are measured on-the-fly relative to the top-left corner of its trigger, or
// for the root menu, the top-left corner of the page.
//
// menu[menuNumber][itemNumber] = new Item('Text', 'URL', 'target frame', length of menu item,
//  additional spacing to next menu item, number of target menu to popout);
//
// If no target menu (popout) is desired, set it to 0. Likewise, if your site does not use
// frames, pass an empty string as a frame target.
//
// Something that needs explaining - the Vertical Menu setup. You can see most menus below
// are 'true', that is they are vertical, except for the first root menu. The 'length' and
// 'width' of an item depends on its orientation -- length is how long the item runs for in
// the direction of the menu, and width is the lateral dimension of the menu. Just look at
// the examples and tweak the numbers, they'll make sense eventually :).



// Default colours passed to most menu constructors (just passed to functions, not
// a global variable - makes things easier to change later in bulk).
var defOver = '#6699cc', defBack = '#336699';

// Default 'length' of menu items - item height if menu is vertical, width if horizontal.
var defLength = 22;

// *** OPTIONAL CODE FROM HERE DOWN ***

// These two lines handle the window resize bug in NS4. See <body onResize="...">.
// I recommend you leave this here as otherwise when you resize NS4's width menus are hidden.

var popOldWidth = window.innerWidth;
nsResizeHandler = new Function('if (popOldWidth != window.innerWidth) location.reload()');


// This is a quick snippet that captures all clicks on the document and hides the menus
// every time you click. Use if you want.

if (isNS4) document.captureEvents(Event.CLICK);
    document.onclick = clickHandle;

function clickHandle(evt)
{
    if (isNS4)
        document.routeEvent(evt);
    hideAllBut(0);
}


// This is just the moving command for the example.
function moveRoot()
{
    with(menu[0][0].ref)
        left = ((parseInt(left) < 100) ? 100 : 5);
}
//  End -->

//<-------From here MT added stuff-------->
function get_image(img, auth)
{
    window.open("image.cgi?image=" + img + "&author=" + auth ,"img" + img, "scrollbars=yes, width=800, height=750, status=yes,toolbar=no,menubar=no,location=no");
}

function get_text(type, id)
{
    window.open("text.cgi?type=" + type + "&id=" + id, "id" + id, "scrollbars=yes, width=500, height=200, status=yes,toolbar=no,menubar=no,location=no");
}

//<---this is for the width part--->
function refresh(params)
{
   location.href = "gallery.cgi?" + params;
}
// End script