//AJS JavaScript library(minify'ed version)
//Copyright (c) 2006 Amir Salihefendic. All rights reserved.
//Copyright (c) 2005 Bob Ippolito. All rights reserved.
//License: http://www.opensource.org/licenses/mit-license.php
//Visit http://orangoo.com/AmiNation/AJS for full version.
AJS = {
	BASE_URL: '',
	drag_obj: null,
	drag_elm: null,
	_drop_zones: [],
	_cur_pos: null,

	_unloadListeners: function () {
		if (AJS.listeners) {
			AJS.map(AJS.listeners, function (elm, type, fn) {
				AJS.removeEventListener(elm, type, fn);
			});
		}
		AJS.listeners = [];
	},
	getElement: function (id) {
		if (AJS.isString(id) || AJS.isNumber(id)) {
			return document.getElementById(id);
		}
		else {
			return id;
		}
	},
	isObject: function (obj) {
		return (typeof obj == 'object');
	},
	isArray: function (obj) {
		return obj instanceof Array;
	},
	removeElement: function (
	/*elm1,elm2...*/
	) {
		var args = AJS.flattenList(arguments);
		AJS.map(args, function (elm) {
			AJS.swapDOM(elm, null);
		});
	},
	isDict: function (o) {
		var str_repr = String(o);
		return str_repr.indexOf(' Object') != -1;
	},
	isDefined: function (o) {
		return (o != 'undefined' && o != null);
	},
	getIndex: function (elm, list
	/*optional*/
	, eval_fn) {
		var len = list.length;
		for (var i = 0; i < len; i++) {
			if (eval_fn && eval_fn(list[i]) || elm == list[i]) {
				return i;
			}
		}
		return -1;
	},
	createDOM: function (name, attrs) {
		var i = 0,
		attr,
		elm = document.createElement(name);

		if (AJS.isDict(attrs[i])) {
			for (k in attrs[0]) {
				attr = attrs[0][k];
				if (k == 'style') {
					elm.style.cssText = attr;
				}
				else if (k == 'class' || k == 'className') {
					elm.className = attr;
				}
				else {
					elm.setAttribute(k, attr);
				}
			}
			i++;
		}
		if (attrs[0] == null) {
			i = 1;
		}
		AJS.map(attrs, function (n) {
			if (n) {
				if (AJS.isString(n) || AJS.isNumber(n)) {
					n = AJS.TN(n);
				}
				elm.appendChild(n);
			}
		},
		i);
		return elm;
	},
	nodeName: function (elm) {
		return elm.nodeName.toLowerCase();
	},
	isIe: function () {
		return (navigator.userAgent.toLowerCase().indexOf('msie') != -1 && navigator.userAgent.toLowerCase().indexOf('opera') == -1);
	},
	addEventListener: function (elm, type, fn,
	/*optional*/
	listen_once, cancel_bubble) {
		if (!cancel_bubble) {
			cancel_bubble = false;
		}
		var elms = AJS.$A(elm);
		AJS.map(elms, function (elmz) {
			if (listen_once) {
				fn = AJS._listenOnce(elmz, type, fn);
			}
			if (AJS.isIn(type, ['submit', 'load', 'scroll', 'resize'])) {
				var old = elm['on' + type];
				elm['on' + type] = function () {
					if (old) {
						fn(arguments);
						return old(arguments);
					}
					else {
						return fn(arguments);
					}
				};
				return;
			}
			if (elmz.attachEvent) {
				//FIXME: We ignore cancel_bubble for IE... hmmz
				elmz.attachEvent('on' + type, fn);
			}
			else if (elmz.addEventListener) {
				elmz.addEventListener(type, fn, cancel_bubble);
			}
			AJS.listeners = AJS.$A(AJS.listeners);
			AJS.listeners.push([elmz, type, fn]);
		});
	},
	callLater: function (fn, interval) {
		var fn_no_send = function () {
			fn();
		};
		window.setTimeout(fn_no_send, interval);
	},
	swapDOM: function (dest, src) {
		dest = AJS.getElement(dest);
		var parent = dest.parentNode;
		if (src) {
			src = AJS.getElement(src);
			parent.replaceChild(src, dest);
		} else {
			parent.removeChild(dest);
		}
		return src;
	},
	getLast: function (list) {
		if (list.length > 0) {
			return list[list.length - 1];
		}
		else {
			return null;
		}
	},
	map: function (list, fn,
	/*optional*/
	start_index, end_index) {
		var i = 0,
		l = list.length;
		if (start_index) {
			i = start_index;
		}
		if (end_index) {
			l = end_index;
		}
		for (i; i < l; i++) {
			if (fn.apply) {
				fn.apply(null, [list[i]]);
			}
		}
	},
	getElementsByTagAndClassName: function (tag_name, class_name,
	/*optional*/
	parent) {
		var class_elements = [];
		if (!AJS.isDefined(parent)) {
			parent = document;
		}
		if (!AJS.isDefined(tag_name)) {
			tag_name = '*';
		}
		var els = parent.getElementsByTagName(tag_name);
		var els_len = els.length;
		var pattern = new RegExp('(^|\\s)' + class_name + '(\\s|$)');
		for (i = 0, j = 0; i < els_len; i++) {
			if (pattern.test(els[i].className) || class_name == null) {
				class_elements[j] = els[i];
				j++;
			}
		}
		return class_elements;
	},
	getRequest: function (url, data, type) {
		//Extend the privlege so we can make cross host reqs
		try {
			netscape.security.PrivilegeManager.enablePrivilege('UniversalBrowserRead');
		} catch(e) {}
		if (!type) {
			type = 'POST';
		}
		var req = AJS.getXMLHttpRequest();
		if (url.indexOf('http://') == -1) {
			url = AJS.BASE_URL + url;
		}
		req.open(type, url, true);
		if (type == 'POST') {
			req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
		}
		return AJS._sendXMLHttpRequest(req);
	},
	isOpera: function () {
		return (navigator.userAgent.toLowerCase().indexOf('opera') != -1);
	},
	setLeft: function (
	/*elm1,elm2...,left*/
	) {
		var args = AJS.flattenList(arguments);
		var l = AJS.getLast(args);
		AJS.map(args, function (elm) {
			elm.style.left = AJS.getCssDim(l);
		},
		0, args.length - 1);
	},
	getBody: function () {
		return AJS.$bytc('body')[0];
	},
	isSafari: function () {
		return (navigator.userAgent.toLowerCase().indexOf('khtml') != -1);
	},
	showElement: function (
	/*elms...*/
	) {
		var args = AJS.flattenList(arguments);
		AJS.map(args, function (elm) {
			elm.style.display = '';
		});
	},
	removeEventListener: function (elm, type, fn,
	/*optional*/
	cancel_bubble) {
		if (!cancel_bubble) {
			cancel_bubble = false;
		}
		if (elm.removeEventListener) {
			elm.removeEventListener(type, fn, cancel_bubble);
			if (AJS.isOpera()) {
				elm.removeEventListener(type, fn, !cancel_bubble);
			}
		}
		else if (elm.detachEvent) {
			elm.detachEvent('on' + type, fn);
		}
	},
	_getRealScope: function (fn,
	/*optional*/
	extra_args, dont_send_event, rev_extra_args) {
		var scope = window;
		extra_args = AJS.$A(extra_args);
		if (fn._cscope) {
			scope = fn._cscope;
		}
		return function () {
			//Append all the orginal arguments+extra_args
			var args = [];
			var i = 0;
			if (dont_send_event) {
				i = 1;
			}
			AJS.map(arguments, function (arg) {
				args.push(arg);
			},
			i);
			args = args.concat(extra_args);
			if (rev_extra_args) {
				args = args.reverse();
			}
			return fn.apply(scope, args);
		};
	},
	_createDomShortcuts: function () {
		var elms = ['ul', 'li', 'td', 'tr', 'th', 'tbody', 'table', 'input', 'span', 'b', 'a', 'div', 'img', 'button', 'h1', 'h2', 'h3', 'br', 'textarea', 'form', 'p', 'select', 'option', 'iframe', 'script', 'center', 'dl', 'dt', 'dd', 'small', 'pre'];
		var createDOM = AJS.createDOM;
		var extends_ajs = function (elm) {
			var c_dom = "return createDOM.apply(null,['" + elm + "',arguments])";
			var c_fun_dom = 'function(){' + c_dom + ' }';
			eval('AJS.' + elm.toUpperCase() + '=' + c_fun_dom);
		};
		AJS.map(elms, extends_ajs);
		AJS.TN = function (text) {
			return document.createTextNode(text);
		};
	},
	isNumber: function (obj) {
		return (typeof obj == 'number');
	},
	_sendXMLHttpRequest: function (req, data) {
		var d = new AJSDeferred(req);
		var onreadystatechange = function () {
			if (req.readyState == 4) {
				var status = '';
				try {
					status = req.status;
				}
				catch(e) {}
				if (status == 200 || status == 304 || req.responseText == null) {
					d.callback();
				}
				else if (status == 500) {
					alert(req.responseText);
				}
				else {
					d.errback();
				}
			}
		};
		req.onreadystatechange = onreadystatechange;
		return d;
	},
	bind: function (fn, scope,
	/*optional*/
	extra_args, dont_send_event, rev_extra_args) {
		fn._cscope = scope;
		return AJS._getRealScope(fn, extra_args, dont_send_event, rev_extra_args);
	},
	setTop: function (
	/*elm1,elm2...,top*/
	) {
		var args = AJS.flattenList(arguments);
		var t = AJS.getLast(args);
		AJS.map(args, function (elm) {
			elm.style.top = AJS.getCssDim(t);
		},
		0, args.length - 1);
	},
	absolutePosition: function (elm) {
		var posObj = {
			'x': elm.offsetLeft,
			'y': elm.offsetTop
		};
		if (elm.offsetParent) {
			var temp_pos = AJS.absolutePosition(elm.offsetParent);
			posObj.x += temp_pos.x;
			posObj.y += temp_pos.y;
		}
		// safari bug
		if (AJS.isSafari() && elm.style.position == 'absolute') {
			posObj.x -= document.body.offsetLeft;
			posObj.y -= document.body.offsetTop;
		}
		return posObj;
	},
	appendChildNodes: function (elm
	/*,elms...*/
	) {
		if (arguments.length >= 2) {
			AJS.map(arguments, function (n) {
				if (AJS.isString(n)) {
					n = AJS.TN(n);
				}
				if (AJS.isDefined(n)) {
					elm.appendChild(n);
				}
			},
			1);
		}
		return elm;
	},
	isString: function (obj) {
		return (typeof obj == 'string');
	},
	getXMLHttpRequest: function () {
		var try_these = [
		function () {
			return new XMLHttpRequest();
		},
		function () {
			return new ActiveXObject('Msxml2.XMLHTTP');
		},
		function () {
			return new ActiveXObject('Microsoft.XMLHTTP');
		},
		function () {
			return new ActiveXObject('Msxml2.XMLHTTP.4.0');
		},
		function () {
			throw 'Browser does not support XMLHttpRequest';
		}];
		var len = try_these.length;
		for (var i = 0; i < len; i++) {
			var func = try_these[i];
			try {
				return func();
			} catch(e) {}
		}
	},
	getEventElm: function (e) {
		if (e && !e.type && !e.keyCode) {
			return e;
		}
		var targ;
		if (!e) {
			var e = window.event;
		}
		if (e.target) {
			targ = e.target;
		}
		else if (e.srcElement) {
			targ = e.srcElement;
		}
		if (targ.nodeType == 3) {// defeat Safari bug
			targ = targ.parentNode;
		}
		return targ;
	},
	isIn: function (elm, list) {
		var i = AJS.getIndex(elm, list);
		if (i != -1) {
			return true;
		}
		else {
			return false;
		}
	},
	replaceChildNodes: function (elm
	/*,elms...*/
	) {
		var child;
		while ((child = elm.firstChild)) {
			elm.removeChild(child);
		}
		if (arguments.length < 2) {
			return elm;
		}
		else {
			return AJS.appendChildNodes.apply(null, arguments);
		}
		return elm;
	},
	keys: function (obj) {
		var rval = [];
		for (var prop in obj) {
			rval.push(prop);
		}
		return rval;
	},
	insertBefore: function (elm, reference_elm) {
		reference_elm.parentNode.insertBefore(elm, reference_elm);
		return elm;
	},
	hideElement: function (elm) {
		var args = AJS.flattenList(arguments);
		AJS.map(args, function (elm) {
			elm.style.display = 'none';
		});
	},
	createArray: function (v) {
		if (AJS.isArray(v) && !AJS.isString(v)) {
			return v;
		}
		else if (!v) {
			return[];
		}
		else {
			return[v];
		}
	},
	setWidth: function (
	/*elm1,elm2...,width*/
	) {
		var args = AJS.flattenList(arguments);
		var w = AJS.getLast(args);
		AJS.map(args, function (elm) {
			elm.style.width = AJS.getCssDim(w);
		},
		0, args.length - 1);
	},
	insertAfter: function (elm, reference_elm) {
		reference_elm.parentNode.insertBefore(elm, reference_elm.nextSibling);
		return elm;
	},
	getCssDim: function (dim) {
		if (AJS.isString(dim)) {
			return dim;
		}
		else {
			return dim + 'px';
		}
	},
	_listenOnce: function (elm, type, fn) {
		var r_fn = function () {
			AJS.removeEventListener(elm, type, r_fn);
			fn(arguments);
		};
		return r_fn;
	},
	setHeight: function (
	/*elm1,elm2...,height*/
	) {
		var args = AJS.flattenList(arguments);
		var h = AJS.getLast(args);
		AJS.map(args, function (elm) {
			elm.style.height = AJS.getCssDim(h);
		},
		0, args.length - 1);
	},
	flattenList: function (list) {
		var r = [];
		var _flatten = function (r, l) {
			AJS.map(l, function (o) {
				if (AJS.isArray(o)) {
					_flatten(r, o);
				}
				else {
					r.push(o);
				}
			});
		};
		_flatten(r, list);
		return r;
	}
};

AJS.$ = AJS.getElement;
AJS.$$ = AJS.getElements;
AJS.$f = AJS.getFormElement;
AJS.$b = AJS.bind;
AJS.$A = AJS.createArray;
AJS.DI = AJS.documentInsert;
AJS.ACN = AJS.appendChildNodes;
AJS.RCN = AJS.replaceChildNodes;
AJS.AEV = AJS.addEventListener;
AJS.REV = AJS.removeEventListener;
AJS.$bytc = AJS.getElementsByTagAndClassName;

AJS.addEventListener(window, 'unload', AJS._unloadListeners);
AJS._createDomShortcuts();

AJSDeferred = function (req) {
	this.callbacks = [];
	this.errbacks = [];
	this.req = req;
};
AJSDeferred.prototype = {
	excCallbackSeq: function (req, list) {
		var data = req.responseText;
		while (list.length > 0) {
			var fn = list.pop();
			var new_data = fn(data, req);
			if (new_data) {
				data = new_data;
			}
		}
	},
	callback: function () {
		this.excCallbackSeq(this.req, this.callbacks);
	},
	errback: function () {
		if (this.errbacks.length == 0) {
			alert('Error encountered:\n' + this.req.responseText);
		}
		this.excCallbackSeq(this.req, this.errbacks);
	},
	addErrback: function (fn) {
		this.errbacks.unshift(fn);
	},
	addCallback: function (fn) {
		this.callbacks.unshift(fn);
	},
	addCallbacks: function (fn1, fn2) {
		this.addCallback(fn1);
		this.addErrback(fn2);
	},
	sendReq: function (data) {
		if (AJS.isObject(data)) {
			var post_data = [];
			for (k in data) {
				post_data.push(k + '=' + AJS.urlencode(data[k]));
			}
			post_data = post_data.join('&');
			this.req.send(post_data);
		}
		else if (AJS.isDefined(data)) {
			this.req.send(data);
		}
		else {
			this.req.send('');
		}
	}
};