addEvent(window, "load", makeNiceTitles);

var XHTMLNS = "http://www.w3.org/1999/xhtml";
var CURRENT_NICE_TITLE;
var browser = new Browser();

function makeNiceTitles() {
	if (!document.createElement || !document.getElementsByTagName)
		return;
	// add namespace methods to HTML DOM; this makes the script work in both
	// HTML and XML contexts.
	if (!document.createElementNS) {
		document.createElementNS = function(ns, elt) {
			return document.createElement(elt);
		}
	}

	if (!document.links) {
		document.links = document.getElementsByTagName("a");
	}
	for ( var ti = 0; ti < document.links.length; ti++) {
		var lnk = document.links[ti];
		if (lnk.title) {
			lnk.setAttribute("nicetitle", lnk.title);
			lnk.removeAttribute("title");
			addEvent(lnk, "mouseover", showNiceTitle);
			addEvent(lnk, "mouseout", hideNiceTitle);
			addEvent(lnk, "focus", showNiceTitle);
			addEvent(lnk, "blur", hideNiceTitle);
		}
	}
	var instags = document.getElementsByTagName("ins");
	if (instags) {
		for ( var ti = 0; ti < instags.length; ti++) {
			var instag = instags[ti];
			if (instag.dateTime) {
				var strDate = instag.dateTime;
				var dtIns = new Date(strDate.substring(0, 4), parseInt(strDate
						.substring(4, 6) - 1), strDate.substring(6, 8), strDate
						.substring(9, 11), strDate.substring(11, 13), strDate
						.substring(13, 15));
				instag
						.setAttribute("nicetitle", "Added on "
								+ dtIns.toString());
				addEvent(instag, "mouseover", showNiceTitle);
				addEvent(instag, "mouseout", hideNiceTitle);
				addEvent(instag, "focus", showNiceTitle);
				addEvent(instag, "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 showNiceTitle(e) {
	if (CURRENT_NICE_TITLE)
		hideNiceTitle(CURRENT_NICE_TITLE);
	if (!document.getElementsByTagName)
		return;
	if (window.event && window.event.srcElement) {
		lnk = window.event.srcElement
	} else if (e && e.target) {
		lnk = e.target
	}
	if (!lnk)
		return;
	if (lnk.nodeName.toUpperCase() != 'A') {
		// lnk is not actually the link -- ascend parents until we hit a link
		lnk = getParent(lnk, "A");
	}
	if (!lnk)
		return;
	nicetitle = lnk.getAttribute("nicetitle");

	var d = document.createElementNS(XHTMLNS, "div");
	d.className = "nicetitle";
	tnt = document.createTextNode(nicetitle);
	pat = document.createElementNS(XHTMLNS, "p");
	pat.className = "titletext";
	pat.appendChild(tnt);
	d.appendChild(pat);
	if (lnk.href) { // sunrise: Link-Darstellung ausgeschaltet
		// tnd = document.createTextNode(lnk.href);
		// pad = document.createElementNS(XHTMLNS,"p");
		// pad.className = "destination";
		// pad.appendChild(tnd);
		// d.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];
	// xy = getMousePosition(e);
	// mx = xy[0]; my = xy[1];

	d.style.left = (mx + 15) + 'px';
	d.style.top = (my + 25) + 'px'; // sunrise: war 35
	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) {
	if (!document.getElementsByTagName)
		return;
	if (CURRENT_NICE_TITLE) {
		document.getElementsByTagName("body")[0]
				.removeChild(CURRENT_NICE_TITLE);
		CURRENT_NICE_TITLE = null;
	}
}

// Add an eventListener to browsers that can do it somehow.
// Originally by the amazing Scott Andrew.
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;
	}
}

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

function getMousePosition(event) {
	if (browser.isIE) {
		x = window.event.clientX + document.documentElement.scrollLeft
				+ document.body.scrollLeft;
		y = window.event.clientY + document.documentElement.scrollTop
				+ document.body.scrollTop;
	}
	if (browser.isNS) {
		x = event.clientX + window.scrollX;
		y = event.clientY + window.scrollY;
	}
	return [ x, y ];
}

// Determine browser and version.

function Browser() {
	// blah, browser detect, but mouse-position stuff doesn't work any other way
	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;
	}
}