Object.extend = function(target, source) {
	for (n in source) {
		target[n] = source[n];
	}
	return target;
}

Object.extend(Array, {
	from: function(obj) {
		var result = [];
		
		for (var n = 0; n < obj.length; n++) {
			result.push(obj[n]);
		}
		return result;
	}
});

Object.extend(Function.prototype, {
	bind: function(bind) {
		if (!bind) { return; }
		var target = this;
		return function() { return target.apply(bind, arguments); };
	}
});




var fastLink = {
	contents: {},
	lines: {},
	timeouts: {},
	visible: null,
	closeIcon: null,
	attempt: function() {
		var result, args = Array.from(arguments);

		do {
			try {
				result = args.shift()();
				break;
			} catch (e) { }
		} while (args.length);

		return result;
	},
	initialize: function() {
		var container = document.getElementById('fastLink');
		var lnks = container.getElementsByTagName('a');
		for (var i = 0; i < lnks.length; i++) {
			lnks[i].onmouseover = function(e) {
				fastLink.showContent(this);
			}
			lnks[i].onmouseout = function(e) {
				if (fastLink.timeouts[this]) {
					clearTimeout(fastLink.timeouts[this]);
					fastLink.timeouts[this] = null;
				}
				fastLink.timeouts[this] = setTimeout(
					function() {
						fastLink.hideContent(this)
					}.bind(this),
					300
				);
			}
			lnks[i].parentNode.onmouseover = lnks[i].onmouseover.bind(lnks[i]);
			lnks[i].parentNode.onmouseout = lnks[i].onmouseout.bind(lnks[i]);
		}
	},
	showContent: function(obj) {
		if (this.timeouts[obj]) {
			clearTimeout(this.timeouts[obj]);
			this.timeouts[obj] = null;
		}
		
		if (this.visible) {
			this.hideContent(this.visible);
		}
		this.visible = obj;
		
		window.document.getElementById('newsMessenEvents').style.visibility = 'visible';
		
		if (!this.contents[obj]) {
			this.contents[obj] = window.document.createElement('div');
			this.contents[obj].className = 'fastLinkContent';
			this.contents[obj].innerHTML = '<div class="loadingContent">' + FastLinkStrings["inhaltWirdGeladen"] + '</div>';
			this.contents[obj].onmouseover = obj.onmouseover.bind(obj);
			this.contents[obj].onmouseout = obj.onmouseout.bind(obj);
			window.document.getElementById('contentBox').appendChild(this.contents[obj]);
			
			var loader = new AJAX();
			loader.oncomplete = function(r) {
				fastLink.contents[obj].innerHTML = r.responseText;
			}
			loader.initialize(obj.href + "&framework=3s-2007-fastLink&disableAutocreateFramework=1");
		}
		
		if (!this.closeIcon) {
			this.closeIcon = window.document.createElement('div');
			this.closeIcon.className = 'fastLinkClose';
			this.closeIcon.innerHTML = FastLinkStrings["schliessen"] + ' <div class="close">X</div>';
			window.document.getElementById('contentBox').appendChild(this.closeIcon);
			
		}
		
		this.closeIcon.onmouseover = obj.onmouseover.bind(obj);
		this.closeIcon.onmouseout = obj.onmouseout.bind(obj);
		this.closeIcon.onclick = obj.onmouseout.bind(obj);
		this.closeIcon.style.display = 'block';
		
		this.contents[obj].style.display = 'block';
		obj.className = obj.className.replace(/\s*active/, '') + ' active';
		if (!this.lines[obj]) {
			this.lines[obj] = window.document.createElement('div');
			this.lines[obj].className = "line";
			this.lines[obj].onmouseover = obj.onmouseover.bind(obj);
			this.lines[obj].onmouseout = obj.onmouseout.bind(obj);
			obj.parentNode.appendChild(this.lines[obj]);
		}
		
		// Alles hat geklappt -> onClick alternative ausschalten
		obj.onclick = function(e) {
			return false;
		}
	},
	hideContent: function(obj) {
		if (this.visible == obj) {
			this.visible = null;
			if (this.lines[obj]) {
				this.lines[obj].parentNode.removeChild(this.lines[obj]);
				this.lines[obj] = null;
			}
			obj.className = obj.className.replace(/\s*active/, '');
			this.contents[obj].style.display = 'none';
			this.closeIcon.style.display = 'none';
			window.document.getElementById('newsMessenEvents').style.visibility = 'hidden';
		}
	}
}




var AJAX = function() {};
Object.extend(AJAX.prototype, {
	request: null,
	
	initialize: function(url, method) {
		this.url = url;
		
		method = method ? method.toUpperCase() : "GET";
		
		this.request = fastLink.attempt(
			function() { return new XMLHttpRequest(); },
			function() { return ActiveXObject('Msxml2.XMLHTTP'); },
			function() { return new ActiveXObject('Microsoft.XMLHTTP'); }
		);
		
		this.request.onreadystatechange = function() {
			this.response();
		}.bind(this);
		
		this.request.open(method, url, true);
		this.request.send(null);
		
		this.onrequest(this.request);
	},
	
	response: function() {
		if (this.request.readyState == 4) {
			if (this.request.status == 200) {
				this.oncomplete(this.request);
			} else {
				this.onerror(this.request);
			}
		}
		this.onresponse(this.request);
	},

	onrequest:  function(e) {},
	onresponse: function(e) {},
	oncomplete: function(e) {},
	onerror:    function(e) {}
});

fastLink.initialize();