if (typeof Hatena == 'undefined')
	var Hatena = {};

if (typeof Hatena.BookmarkWidget == 'undefined') {
	Hatena.BookmarkWidget = new function () {
		this.callbacks = new Array;

		this.load = function (id) {
			loadCSS();
			var c = Hatena.BookmarkWidget;
			var callbackId = c.callbacks.length;
			var num = Math.max(1, Math.min(c.num, 10));
			if(id > -1) {
				var div = document.getElementById('hatena-bookmark-widget' + id);
				createDiv(id, num, div);
				c.callbacks[id] = createList(id, num);
				createRequest(id).call();
			} else {
				createDiv(callbackId, num);
				c.callbacks.push(createList(callbackId, num));
				loadJSONP(createRequest(callbackId));
			}
		};

		var themetable = {
			hatenadiary: {
				wrapper:'hatena-module',
				title:  'hatena-moduletitle',
				body:   'hatena-modulebody',
				footer: 'hatena-modulefooter',
				cssfile:'http://b.hatena.ne.jp/css/widget-hatenadiary.css'
			},
			notheme: {
				wrapper:'hatena-bookmark-widget-notheme',
				title:  'hatena-bookmark-widget-title',
				body:   'hatena-bookmark-widget-body',
				footer: 'hatena-bookmark-widget-footer',
				cssfile:''
			},
			other:  {
				wrapper:'hatena-bookmark-widget',
				title:  'hatena-bookmark-widget-title',
				body:   'hatena-bookmark-widget-body',
				footer: 'hatena-bookmark-widget-footer',
				cssfile:'http://b.hatena.ne.jp/css/widget.css'
			},
			base: 'hatena-bookmark'
		}

		var createDiv = function (callbackId, num, div) {
			var c = Hatena.BookmarkWidget;
			var theme = (themetable[c.theme] || themetable['other']);

			var li = [];
			li.push('<li class="isfirst"></li>');
			for(var i=1; i<num; i++)
				li.push('<li></li>');

			var ul = $E('ul');
			ul.innerHTML =  li.join('');
			var width = parseInt(Hatena.BookmarkWidget.width);

			var newdiv = $E('div', null,
			  $E('div', {className: theme.title },
				$E('a', {href: 'http://b.hatena.ne.jp/entrylist?url='+c.url+'&sort='+c.sort },
				  $E('img', {src: 'http://b.hatena.ne.jp/images/widget/favicon.gif', valign: 'bottom' }),
				  c.title
				)
			  ),
			  $E('div', {className: theme.body}, ul),
			  $E('div', {className: theme.footer},
				$E('a', {href: 'http://b.hatena.ne.jp' },
				  $E('span', null,  'Hatena::Bookmark')
				)
			  )
			);
			var content = newdiv.innerHTML;

			if(div) {
				div.innerHTML = content;
				div.className = themetable.base + ' ' + theme.wrapper;
				div.style.width = width > 0 ? width + 'px' : null;
			} else {
				document.write([
				'<div',
				' id="hatena-bookmark-widget', callbackId, '"',
				' class="', themetable.base + ' ' + theme.wrapper, '"',
				width > 0 ? ' style="width: '+width+'px"' : null,
				'>',
				content,
				'</div>'
				].join(''));
			}
		};
		var createList = function (callbackId, num) {
			return function (json) {
				var t = document.getElementById('hatena-bookmark-widget' + callbackId).getElementsByTagName('UL')[0];
				var li = [];
				if(json && json.length > 0) {
					var excludeUrl = Hatena.BookmarkWidget.url;
					for(var i = 0; i < json.length; i++){
						if(json[i].link == excludeUrl){
							json.splice(i,1);
						}
					}
					for(i = 0; i < num; i++) {
						if(json[i]) {
							var j = json[i];
							var count = $E('a', {href: ('http://b.hatena.ne.jp/entry/' + j.link).replace('#', '%23') } , j.count + 'users');
							t.replaceChild($E('li', null,
								$E('a', {className: 'hatena-bookmark-entrytitle', href: j.link.replace('%23', '#')}, j.title),
								$E('span', {className: 'hatena-bookmark-count'}, j.count > 10 ? $E('strong', null, count) : j.count >= 5 ? $E('em', null, count) : count)
							), t.childNodes[i]);
						} else {
							t.replaceChild($E('li'), t.childNodes[i]);
						}
					}
				} else {
					t.replaceChild($E('li', null, $E('span', {className: 'hatena-bookmark-nocount' }, 'まだブックマークされていません')), t.childNodes[0]);
				}
			};
		};
		var createRequest = function(id) {
			var url = Hatena.BookmarkWidget.url;
			var sort = Hatena.BookmarkWidget.sort;
			return function () {
				var request = 'http://b.hatena.ne.jp/entrylist/json?' + [
					'callback=Hatena.BookmarkWidget.callbacks['+ id +']',
					'url='  + encodeURIComponent(url),
					'sort=' + sort
				].join('&');
				var script = $E('script', { defer: 'defer', type: 'text/javascript', charset: 'utf-8', src: request });
				document.getElementsByTagName('head')[0].appendChild(script)
			}
		};
		var loadCSS = function() {
			var theme = (themetable[Hatena.BookmarkWidget.theme] || themetable['other']);
			if(!theme.cssfile) return;
			var link = $E('link', { rel: 'stylesheet', type: 'text/css', href: theme.cssfile });
			theme.cssfile = null;
			document.getElementsByTagName('head')[0].appendChild(link);
		};
		var loadJSONP = function(func) {
			var ua = navigator.userAgent.toUpperCase();
			if (window.opera || ua.indexOf('FIREFOX') >= 0) {
				var e = 'DOMContentLoaded';
				var listener = function() { return func.call(); }
				if (window.addEventListener) {
					window.addEventListener(e, listener, false);
				} else if (window.attachEvent) {
					window.attachEvent(e, listener);
				}
			} else if ((ua.indexOf('MSIE') >= 0 || ua.toLowerCase().indexOf('webkit') >= 0)) {
				var i = 0;
				(function() {
					if (i++ > 10000) return func.call();
					try {
						if (document.readyState != 'loaded' && document.readyState != 'complete') {
							document.documentElement.doScroll('left');
						}
					} catch(error) {
						return setTimeout(arguments.callee, 13);
					}
					func.call();
				})();
			} else {
				func.call();
			}
		};
		var $E = function(tagName, attributes) {
			var elem = document.createElement(tagName);
			for (var a in attributes) {
			  if (a == 'style') {
				for (var prop in attributes[a]) {
				  elem.style[prop] = attributes[a][prop];
				}
			  } else {
				elem[a] = attributes[a];
			  }
			}
			var children = Array.prototype.slice.call(arguments, 2);
			for (var i = 0; i < children.length; i++) {
				var child = children[i];
				if (typeof child == 'string')
					child = document.createTextNode(child);
				if (!child)
					continue;
				elem.appendChild(child);
			}
			return elem;
		};
	};
} else {
	for(i in ['url','title', 'sort', 'width', 'num', 'theme']) {
		Hatena.BookmarkWidget[i] = null;
	}
}