// from http://www.kryogenix.org
// by Scott Andrew - http://scottandrew.com
// add an eventlistener to browsers that can do it somehow.
function addEvent(obj, evType, fn)
        {
        if (obj.addEventListener)
                {
                obj.addEventListener(evType, fn, false);
                return true;
                }
        else if (obj.attachEvent)
                {
                var r = obj.attachEvent('on'+evType, fn);
                return r;
                }
        else
                {
                return false;
                }
        }


// Force IE not to show alternate text as tooltip
function noAltTooltip()
        {
        images = document.getElementsByTagName('img');
        for (var i = 0; i < images.length; i++)
                {
                var title = images[i].getAttribute('title');
                var alt = images[i].getAttribute('alt');
                if ((document.all) && (alt) && (!title))
                        {
                        images[i].setAttribute('title', '');
                        }
                }
        }

// Nice Titles

// original code by Stuart Langridge 2003-11
// with additions to the code by other good people
// http://www.kryogenix.org/code/browser/nicetitle/
// thank you, sir

// modified by Peter Janes 2003-03-25
// http://peterjanes.ca/blog/archives/2003/03/25/nicetitles-for-ins-and-del
// added in ins and del tags

// modified by Dunstan Orchard 2003-11-18
// http://1976design.com/blog/
// added in accesskey information
// tried ever-so-hard, but couldn't work out how to do what Ethan did

// final genius touch by by Ethan Marcotte 2003-11-18
// http://www.sidesh0w.com/
// worked out how to delay showing the popups to make them more like the browser's own

// set the namespace
var XHTMLNS = 'http://www.w3.org/1999/xhtml';
var CURRENT_NICE_TITLE;

// browser sniff
var browser = new Browser();

// determine browser and version.
function Browser()
        {
        var ua, s, i;

        this.isIE = false;
        this.isNS = false;
        this.version = null;

        ua = navigator.userAgent;

        s = 'MSIE';
        if ((i = ua.indexOf(s)) >= 0)
                {
                this.isIE = true;
                this.version = parseFloat(ua.substr(i + s.length));
                return;
                }

        s = 'Netscape6/';
        if ((i = ua.indexOf(s)) >= 0)
                {
                this.isNS = true;
                this.version = parseFloat(ua.substr(i + s.length));
                return;
                }

        // treat any other 'Gecko' browser as NS 6.1.
        s = 'Gecko';
        if ((i = ua.indexOf(s)) >= 0)
                {
                this.isNS = true;
                this.version = 6.1;
                return;
                }
        }

// 2003-11-19 sidesh0w
// set delay vars to emulate normal hover delay
var delay;
var interval = 0.60;

// this function runs on window load
// it runs through all the links on the page as starts listening for actions
function makeNiceTitles()
        {
        if (!document.createElement || !document.getElementsByTagName) return;
        if (!document.createElementNS)
                {
                document.createElementNS = function(ns, elt)
                        {
                        return document.createElement(elt);
                        }
                }

        // do regular links
        if (!document.links)
                {
                document.links = document.getElementsByTagName('a');
                }
        for (var ti=0; ti<document.links.length; ti++)
                {
                var lnk = document.links[ti];
                // * I added specific class names here..
                if (lnk.title)
                        {
                        lnk.setAttribute('nicetitle', lnk.title);
                        lnk.removeAttribute('title');
                        addEvent(lnk, 'mouseover', showDelay);
                        addEvent(lnk, 'mouseout', hideNiceTitle);
                        addEvent(lnk, 'focus', showDelay);
                        addEvent(lnk, 'blur', hideNiceTitle);
                        }
                }

        // 2003-03-25 Peter Janes
        // do ins and del tags
        var tags = new Array(2);
        tags[0] = document.getElementsByTagName('ins');
        tags[1] = document.getElementsByTagName('del');
        for (var tt=0; tt<tags.length; tt++)
                {
                if (tags[tt])
                        {
                        for (var ti=0; ti<tags[tt].length; ti++)
                                {
                                var tag = tags[tt][ti];
                                if (tag.dateTime)
                                        {
                                        var strDate = tag.dateTime;
                                        // HTML/ISO8601 date: yyyy-mm-ddThh:mm:ssTZD (Z, -hh:mm, +hh:mm)
                                        var month = strDate.substring(5,7);
                                        var day = strDate.substring(8,10);
                                        if (month[0] == '0')
                                                {
                                                month = month[1];
                                                }
                                        if (day[0] == '0')
                                                {
                                                day = day[1];
                                                }
                                        var dtIns = new Date(strDate.substring(0,4), month-1, day, strDate.substring(11,13), strDate.substring(14,16), strDate.substring(17,19));
                                        tag.setAttribute('nicetitle', (tt == 0 ? 'Added' : 'Deleted') + ' on ' + dtIns.toString());
                                        addEvent(tag, 'mouseover', showDelay);
                                        addEvent(tag, 'mouseout', hideNiceTitle);
                                        addEvent(tag, 'focus', showDelay);
                                        addEvent(tag, 'blur', hideNiceTitle);
                                        }
                                }
                        }
                }
        }

function findPosition(oLink)
        {
        if (oLink.offsetParent)
                {
                for (var posX = 0, posY = 0; oLink.offsetParent; oLink = oLink.offsetParent)
                        {
                        posX += oLink.offsetLeft;
                        posY += oLink.offsetTop;
                        }
                return [posX, posY];
                }
        else
                {
                return [oLink.x, oLink.y];
                }
        }

function getParent(el, pTagName)
        {
        if (el == null)
                {
                return null;
                }
        // gecko bug, supposed to be uppercase
        else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase())
                {
                return el;
                }
        else
                {
                return getParent(el.parentNode, pTagName);
                }
        }

// 2003-11-19 sidesh0w
// trailerpark wrapper function
function showDelay(e)
        {
    if (window.event && window.event.srcElement)
                {
        lnk = window.event.srcElement
                }
        else if (e && e.target)
                {
        lnk = e.target
                }
    if (!lnk) return;

        // lnk is a textnode or an elementnode that's not ins/del
    if (lnk.nodeType == 3 || (lnk.nodeType == 1 && lnk.tagName.toLowerCase() != 'ins' && lnk.tagName.toLowerCase() != 'del'))
                {
                // ascend parents until we hit a link
                lnk = getParent(lnk, 'a');
                }

        delay = setTimeout("showNiceTitle(lnk)", interval * 1000);
        }

// build and show the nice titles
function showNiceTitle(link)
        {
    if (CURRENT_NICE_TITLE) hideNiceTitle(CURRENT_NICE_TITLE);
    if (!document.getElementsByTagName) return;

    nicetitle = lnk.getAttribute('nicetitle');

    var d = document.createElementNS(XHTMLNS, 'div');
    d.className = 'nicetitle';
    var dc = document.createElementNS(XHTMLNS, 'div');
    dc.className = 'nicetitle-content';
    d.appendChild(dc);
    tnt = document.createTextNode(nicetitle);
    pat = document.createElementNS(XHTMLNS, 'p');
    pat.className = 'titletext';
    pat.appendChild(tnt);

        // 2003-11-18 Dunstan Orchard
        // added in accesskey info
        if (lnk.accessKey)
                {
        axs = document.createTextNode(' [' + lnk.accessKey + ']');
                axsk = document.createElementNS(XHTMLNS, 'span');
        axsk.className = 'accesskey';
        axsk.appendChild(axs);
                pat.appendChild(axsk);
                }
    dc.appendChild(pat);

    if (lnk.href)
                {
        tnd = document.createTextNode(lnk.href);
        pad = document.createElementNS(XHTMLNS, 'p');
        pad.className = 'destination';
        pad.appendChild(tnd);
        dc.appendChild(pad);
                }

    STD_WIDTH = 300;

        if (lnk.href)
                {
        h = lnk.href.length;
                }
        else
                {
                h = nicetitle.length;
                }

    if (nicetitle.length)
                {
                t = nicetitle.length;
                }

    h_pixels = h*6;
        t_pixels = t*10;

    if (h_pixels > STD_WIDTH)
                {
        w = h_pixels;
                }
        else if ((STD_WIDTH>t_pixels) && (t_pixels>h_pixels))
                {
        w = t_pixels;
                }
        else if ((STD_WIDTH>t_pixels) && (h_pixels>t_pixels))
                {
        w = h_pixels;
                }
        else
                {
        w = STD_WIDTH;
                }

    d.style.width = w + 'px';

    mpos = findPosition(lnk);
    mx = mpos[0];
    my = mpos[1];

    d.style.left = (mx+15) + 'px';
    d.style.top = (my+35) + 'px';

    if (window.innerWidth && ((mx+w) > window.innerWidth))
                {
        d.style.left = (window.innerWidth - w - 25) + 'px';
                }
    if (document.body.scrollWidth && ((mx+w) > document.body.scrollWidth))
                {
        d.style.left = (document.body.scrollWidth - w - 25) + 'px';
                }

    document.getElementsByTagName('body')[0].appendChild(d);

    CURRENT_NICE_TITLE = d;
        }

function hideNiceTitle(e)
        {
        // 2003-11-19 sidesh0w
        // clearTimeout
        if (delay) clearTimeout(delay);
        if (!document.getElementsByTagName) return;
        if (CURRENT_NICE_TITLE)
                {
                document.getElementsByTagName('body')[0].removeChild(CURRENT_NICE_TITLE);
                CURRENT_NICE_TITLE = null;
                }
        }
addEvent(window, "load", noAltTooltip);
addEvent(window, "load", makeNiceTitles);