/*
 * artdialog v2.1.1
 * date: 2010-06-02
 * http://code.google.com/p/artdialog/
 * (c) 2009-2010 tangbin, http://www.planeart.cn
 *
 * this is licensed under the gnu lgpl, version 2.1 or later.
 * for details, see: http://creativecommons.org/licenses/lgpl/2.1/
 */
(function() {
	this.art = {};

	var ini = function(c, y, n) {

		// artdialog('无配置参数的简写形式')
		if (typeof c === 'string') {
			var txt = c;
			c = {};
			c.content = txt;
			c.fixed = true;
		};

		if (c.id && $gid(c.id)) return newbox(c.id);// 如果id存在则返回此id对话框
		if (c.lock) c.fixed = true;					// 执行锁屏也同时执行静止定位
		if (c.menubtn) c.fixed = false;				// 使用菜单模式就使用绝对定位
		if (typeof y === 'function') c.yesfn = y;
		if (typeof n === 'function') c.nofn = n;

		if (c.url) c.iframe = c.url; // 兼容<2.1版调用方式

		var config = {
			id: c.id,								// 对话框id
			title: c.title || '\u63d0\u793a',		// 标题
			content: c.content,						// 普通消息
			iframe: c.iframe,						// iframe消息
			yestext: c.yestext || '\u786e\u5b9a',	// 确定按钮文本
			notext: c.notext || '\u53d6\u6d88',		// 取消按钮文本
			yesfn: c.yesfn,							// 确定按钮事件
			nofn: c.nofn,							// 取消按钮事件
			closefn: c.nofn,						// 关闭按钮事件
			width: c.width,							// 宽度
			height: c.height,						// 高度
			menubtn: c.menubtn,						// 触发菜单模式的元素
			left: c.left,							// x轴坐标
			top: c.top,								// y轴坐标
			fixed: c.fixed,							// 是否静止定位
			style: c.style,							// 动态风格
			lock: c.lock,							// 是否锁屏
			time: c.time							// 限时关闭
			//btopen                                  //打开新窗口
		};

		return newbox(c.id).int(config);
	},
	
	alphafx = 4,					// 锁屏遮罩透明渐变速度(等于1的时候不渐变,默认4)
	zindex = 999999,				// 对话框初始叠加高度(重要：opera浏览器z-index的最大值限制都小于其他浏览器)
	hideid = 'temp_artdialog',		// 用于预加载背景图的对话框id
	bigbox = 100000,				// 指定超过此面积的对话框拖动的时候用替身,(等于0的时候全部用替身, 默认240000)
	closetext = '×',				// 关闭按钮文本
	loadtext = 'loading..',			// iframe加载提示文本
	pagelock = 0,

	m = {},
	tempbox,
	boxs = [],
	onmouse,
	infocus,
	closekey,
	ie = !-[1,], // !+'\v1',
	ie6 = ie && ([/msie (\d)\.0/i.exec(navigator.useragent)][0][1] == 6),

	// 遍历
	each = function(a, b) {
		for (var i = 0, len = a.length; i < len; i++) b(a[i], i);
	},

	// 获取页面尺寸相关数据
	// 如果要获取父页面或子页面的数据，请指定win参数
	getpage = function(win){
		var dd = win ? win.document.documentelement : document.documentelement,
			db = win ? win.document.body : document.body,
			dom = dd || db;
		return {
			width:  math.max(dom.clientwidth, dom.scrollwidth),		// 页面宽度
			height: math.max(dom.clientheight, dom.scrollheight),	// 页面长度
			left: math.max(dd.scrollleft, db.scrollleft),			// 被滚动条卷去的文档宽度
			top: math.max(dd.scrolltop, db.scrolltop),				// 被滚动条卷去的文档高度
			winwidth: dom.clientwidth,								// 浏览器视口宽度
			winheight: dom.clientheight								// 浏览器视口高度
		};
	},
	
	// 事件绑定
	bind = function (obj, type, fn) {
		if (obj.attachevent) {
			obj['e' + type + fn] = fn;
			obj[type + fn] = function(){obj['e' + type + fn](window.event);}
			obj.attachevent('on' + type, obj[type + fn]);
		} else {
			obj.addeventlistener(type, fn, false);
		};
	},
	
	// 移除事件
	unbind = function (obj, type, fn) {
		if (obj.detachevent) {
			try {
				obj.detachevent('on' + type, obj[type + fn]);
				obj[type + fn] = null;
			} catch(_) {};
		} else {
			obj.removeeventlistener(type, fn, false);
		};
	},

	// 阻止事件冒泡
	stopbubble = function(e){
		e.stoppropagation ? e.stoppropagation() : e.cancelbubble = true;
	},
	
	// 阻止浏览器默认行为
	stopdefault = function(e){
		e.preventdefault ? e.preventdefault() : e.returnvalue = false;
	},

	// 清除文本选择
	clsselect = function(){
		try{
			window.getselection ? window.getselection().removeallranges() : document.selection.empty();
		}catch(_){};
	},
	
	// 创建xhtml元素节点
	$ce = function (name){
		return document.createelement(name);
	},
	
	// 创建文本节点
	$ctn = function (txt){
		return document.createtextnode(txt);
	},

	// 用id获取对象
	$gid = function (id){
		return document.getelementbyid(id);
	},

	// 用标签获取对象
	$gtag = function (tag) {
		return document.getelementsbytagname(tag);
	},
	
	// 判断css类是否存在
	hasclass = function(o, c){
		var reg = new regexp('(\\s|^)'+c+'(\\s|$)');
		return o.classname.match(reg);
	},
	
	// 添加css类
	addclass = function(o, c){
		if(!hasclass(o, c)){
			o.classname += ' '+c;
		};
	},
	
	// 移除css类
	removeclass = function(o, c){
		if(hasclass(o, c)){
			var reg = new regexp('(\\s|^)'+c+'(\\s|$)');
			o.classname = o.classname.replace(reg, ' ');
		};
	},
	
	// 向head添加css
	addstyle = function(s) {
		var t = this.style;
		if(!t){
			t = this.style = $ce('style');
			t.setattribute('type', 'text/css');
			$gtag('head')[0].appendchild(t);
		};
		t.stylesheet && (t.stylesheet.csstext += s) || t.appendchild($ctn(s));
	},
	
	// 鼠标行为处理
	cmd = function(evt, x) {
		var e = evt || window.event,
			b = this.data.box,
			m = this.data.movetemp,
			p = getpage(),
			i = this.security(b);

		m.box = this;
		this.zindex();
		onmouse = true;
		m.x = e.clientx;
		m.y = e.clienty;
		m.top = parseint(b.style.top);
		m.left = parseint(b.style.left);
		m.width = b.offsetwidth;
		m.height = b.offsetheight;
		m.winwidth = p.winwidth;
		m.winheight = p.winheight;
		m.pagewidth = p.width;
		m.pageheight = p.height;
		m.pageleft = p.left;
		m.pagetop = p.top;
		
		// 保存最大拖动范围限制数据
		m.maxx = i.maxx;
		m.maxy = i.maxy;
		
		var regular  = setinterval(function(){
			clsselect();
		}, 40);
		clsselect();
		
		//对于超过预计尺寸的对话框用替身代替拖动，保证流畅性
		if(m.width * m.height >= bigbox && !x) {
			tempbox = true;
			m.style.width = m.width + 'px';
			m.style.height = m.height + 'px';
			m.style.left = m.left + 'px';
			m.style.top = m.top + 'px';
			m.style.visibility = 'visible';
		};
		addclass(m.box.data.wrap, 'ui_move');
		addclass($gtag('html')[0], 'ui_page_move');

		document.onmousemove = function(a) {
			x ? resize.call(b, a, x) : drag.call(b, a);
		};
		
		document.onmouseup = function() {
			onmouse = false;
			document.onmouseup = null;
			if (document.body.releasecapture) b.releasecapture();// ie释放鼠标监控
			removeclass(m.box.data.wrap, 'ui_move');
			removeclass($gtag('html')[0], 'ui_page_move');
			clearinterval(regular);
			if (tempbox) {
				m.style.visibility = 'hidden';
				b.style.left = m.style.left;
				b.style.top = m.style.top;
				tempbox = false;
			};
		};
		
		// 让ie下鼠标超出视口仍可控制
		if (document.body.setcapture) {
			b.setcapture();
		};
	},

	// 拖动
	drag = function(a) {
		if (onmouse === false) return false;
		var e = a || window.event,
			obj = tempbox ? m.box.data.movetemp : m.box.data.box,
			x = e.clientx,
			y = e.clienty,
			p = getpage(),
			l = parseint(m.left - m.x + x - m.pageleft + p.left),
			t = parseint(m.top - m.y + y - m.pagetop + p.top);

		if (l > m.maxx) l = m.maxx;
		if (t > m.maxy ) t = m.maxy;	
		if (l < 0) l = 0;
		if (t < 0) t = 0;
		obj.style.left = l + 'px';
		obj.style.top = t + 'px';
		return false;
	},
	
	// 调整对话框大小
	resize = function(a, o) {
		if (onmouse === false) return false;
		var e = a || window.event,
		x = e.clientx,
		y = e.clienty,
		w = m.width + x - m.x + o.w,
		h = m.height + y - m.y + o.h;
		if (w > 0) o.obj.style.width = w + 'px';
		if (h > 0) o.obj.style.height = h + 'px';
		// 覆盖下拉控件的遮罩
		if (ie6) {
			m.box.data.selectmask.style.width = m.box.data.box.offsetwidth + 'px';
			m.box.data.selectmask.style.height = m.box.data.box.offsetheight + 'px';
		};
		return false;
	},
	
	// 生产对话框
	newbox = function(id) {

		 // 循环利用
		var j = -1;
		each(boxs, function(o, i) {
				if (id && o.data.wrap.id === id) {
					j = i;
				} else
				if (o.free === true){
					j = i;
				};
		});
		if (j >= 0) return boxs[j];
		
		// 
		// 	九宫格布局
		// 	
		// 	基于table 与 div,自适应
		// 
		var _title_wrap = $ce('td'),					// 标题栏
			_title = $ce('div'),						// 标题与按钮外套
			_title_text = $ce('div'),					// 标题文字内容
			_close = $ce('a');							// 关闭按钮
		_title_wrap.classname = 'ui_title_wrap';
		_title.classname = 'ui_title';
		_title_text.classname = 'ui_title_text';
		_close.classname = 'ui_close';
		_close.href = '#';
		_close.setattribute('accesskey', 'c');
		_close.appendchild($ctn(closetext));
		_title.appendchild(_title_text);
		_title.appendchild(_close);
		_title_wrap.appendchild(_title);
		
		var _content_wrap = $ce('td'),					// 内容区
			_content = $ce('div'),
			_content_mask = $ce('div'),					// iframe内容遮罩
			_loading_tip = $ce('div');
		_loading_tip.classname = 'ui_loading_tip';		// iframe加载提示
		_loading_tip.appendchild($ctn(loadtext));
		_content_wrap.classname = 'ui_content_wrap';
		_content.classname = 'ui_content';
		_content_mask.classname = 'ui_content_mask';
		_content_wrap.appendchild(_content);
		_content_wrap.appendchild(_loading_tip);
		
		var _yesbtn = $ce('button'),					// 确定按钮
			_yeswrap = $ce('span'),
			_nobtn = $ce('button'),						// 取消按钮
			_nowrap = $ce('span');
		_yesbtn.setattribute('accesskey', 'y');
		_yeswrap.classname = 'ui_yes';
		_nobtn.setattribute('accesskey', 'n');
		_nowrap.classname = 'ui_no';
		
		var _bottom_wrap = $ce('td'),					// 底部按钮区
			_bottom = $ce('div'),
			_btns = $ce('div'),
			_resize = $ce('div');						// 调节对话框大小的手柄
		_bottom_wrap.classname = 'ui_bottom_wrap';
		_bottom.classname = 'ui_bottom';
		_btns.classname = 'ui_btns';
		_resize.classname = 'ui_resize';
		_bottom.appendchild(_btns);
		_bottom.appendchild(_resize);
		_bottom_wrap.appendchild(_bottom);
		
		var _dialog_main = $ce('table'),				// 内容表格
			_ctbody = $ce('tbody');
		_dialog_main.classname = 'ui_dialog_main';
		for(var r = 0; r < 3; r++){
			var _tr = $ce('tr');
			if (r == 0) _tr.appendchild(_title_wrap);
			if (r == 1) _tr.appendchild(_content_wrap);
			if (r == 2) _tr.appendchild(_bottom_wrap);
			_ctbody.appendchild(_tr);
		};
		_dialog_main.appendchild(_ctbody);
		
		var _btable = $ce('table'),						// 外边框表格
			_btbody = $ce('tbody');
		for(var r=0;r<3;r++){
			var _tr = $ce('tr');
			for(var d=0; d<3; d++){
				var _td = $ce('td');
				if(r == 1 && d == 1) {
					_td.classname = 'ui_td_' + r + d;
					_td.appendchild(_dialog_main);
				}else{
					_td.classname = 'ui_border ' + 'ui_td_' + r + d;
				};
				_tr.appendchild(_td);
			};
			_btbody.appendchild(_tr);
		};
		_btable.appendchild(_btbody);

		var _dialog = $ce('div');						// 对话框
		_dialog.classname = 'ui_dialog';
		if (ie6) {
			var _ie6_select_mask = $ce('iframe');		// 使用一个iframe覆盖ie6下拉控件
			_ie6_select_mask.classname = 'ui_ie6_select_mask';
			_dialog.appendchild(_ie6_select_mask);
		};
		_dialog.appendchild(_btable);

		var _overlay = $ce('div');						// 锁屏遮罩
		_overlay.classname = 'ui_overlay';
		_overlay.appendchild($ce('div'));

		var _move_temp = $ce('div');					// 对话框移动状态的替身
		_move_temp.classname = 'ui_move_temp';
		_move_temp.appendchild($ce('div'));
		document.body.appendchild(_move_temp);
		
		var _dialog_wrap = $ce('div');					// 对话框外套
		_dialog_wrap.classname = 'ui_dialog_wrap';
		_dialog_wrap.appendchild(_overlay);
		_dialog_wrap.appendchild(_dialog);
		_dialog_wrap.appendchild(_move_temp);
		/*九宫格布局结束*/

		
		// 触发拖动函数
		_title_text.onmousedown = function(a) {
			cmd.call($, a, false);
			return false;
		};
		
		// 触发调节大小函数
		_resize.onmousedown = function(a) {
			var d = _dialog,
			c = _content_wrap;
			cmd.call($, a, {obj:c, w:c.offsetwidth - d.offsetwidth, h:c.offsetheight - d.offsetheight});
			return false;
		};
		
		// 给定tab切换焦点的按钮的值
		_yesbtn.onfocus = _yesbtn.onblur = function(){
			$.data.btntab = _nobtn;
		};
		_nobtn.onfocus = _nobtn.onblur = function(){
			$.data.btntab = _yesbtn;
		};
		
		// 向页面插入对话框
		document.body.appendchild(_dialog_wrap);
		
		var $ = {

			// 数据缓存
			data: {
				box: _dialog,
				movetemp: _move_temp,
				selectmask: _ie6_select_mask,
				wrap: _dialog_wrap
			},
			
			int: function(c){
				$.data.config = c;

				if (typeof c.id === 'string') _dialog_wrap.id = c.id;
				if (typeof c.style === 'string') _btable.classname = c.style;

				$.content(c.title, c.content, c.iframe).
				yesbtn(c.yesfn, c.yestext).
				nobtn(c.nofn, c.notext).
				closebtn(c.closefn).
				size(c.width, c.height).
				align(c.menubtn, c.left, c.top, c.fixed);

				if (c.lock) $.lock.show();
				if (c.time) $.time(c.time);

				return $;
			},
			
			
			// 消息内容构建(标题, html内容, iframe)
			content: function(title, content, iframe) {
				$.free = false;
				$.data.content = _content;// 存储内容容器

				if (content) {
					_content.innerhtml = '<span class="ui_dialog_icon"></span>' + content;
					$.btnfocus();
				} else
				
				if (iframe) {
					$.loading.show();

					$._iframe = $ce('iframe');
					$._iframe.setattribute('frameborder', 0, 0); // 消除ie7可能会出现的边框
					$._iframe.src = iframe;
					addclass(_dialog_wrap, 'ui_iframe');
					_content.appendchild($._iframe);
					_content.appendchild(_content_mask);
					
					// iframe加载完毕
					$.data.iframeload = function(){
						var c = $.data.config;
						$.loading.hide();

						if (!c.width && !c.height) try{
							var i = getpage($._iframe.contentwindow);
							$.size(i.width, i.height);
						}catch (_){};

						$._iframe.style.csstext = 'width:100%;height:100%'; // 自适应宽度需要最后设置，否则ie6、7无法正确获取iframe实际尺寸
						if (!c.left && !c.top) $.center();
						$.btnfocus();
						
					};
					bind($._iframe, 'load', $.data.iframeload);

					// 存储iframe内容对象
					$.data.iframe = $._iframe.contentwindow || $._iframe;
				} else {
					return $;
				};

				_title_text.innerhtml = '<span class="ui_title_icon"></span>' + title;
				_dialog_wrap.style.visibility = 'visible';
				return $;
			},
			
			// 尺寸(宽度, 高度)
			size: function(w, h) {
				if(parseint(w) == w) w = w + 'px';
				if(parseint(h) == h) h = h + 'px';
				_content_wrap.style.width = w || '';
				_content_wrap.style.height = h || '';
				
				// 覆盖下拉控件的遮罩
				if (ie6) {
					_ie6_select_mask.style.width = _dialog.offsetwidth;
					_ie6_select_mask.style.height = _dialog.offsetheight;
				};
				
				return $;
			},
			
			// 对话框安全范围计算
			security: function(obj){
				var minx, miny, maxx, maxy, centerx, centery;

				$.data.boxwidth = obj.offsetwidth;
				$.data.boxheight = obj.offsetheight;
				var p = getpage();
				m.winwidth = p.winwidth;
				m.winheight = p.winheight;
				m.pagewidth = p.width;
				m.pageheight = p.height;
				m.pageleft = p.left;
				m.pagetop = p.top;
				
				if ($.data.config.fixed) {
					minx = 0;
					maxx = m.winwidth - $.data.boxwidth;
					centerx = maxx / 2;
					miny = 0;
					maxy = m.winheight - $.data.boxheight;
					// 小对话框在视觉黄金比例垂直居中，大对话框绝对居中
					var hc =  m.winheight * 0.382 - $.data.boxheight / 2;
					centery = ($.data.boxheight < m.winheight / 2) ?  hc : maxy / 2;
				} else {
					minx = m.pageleft;
					maxx = m.winwidth + minx - $.data.boxwidth;
					centerx = maxx / 2;
					miny = m.pagetop;
					maxy = m.winheight + miny - $.data.boxheight;
					// 黄金比例垂直居中
					var hc = m.winheight * 0.382 - $.data.boxheight / 2 + miny;
					centery =  ($.data.boxheight < m.winheight / 2) ? hc : (maxy + miny) / 2;
				};
				if (centerx < 0) centerx = 0;
				if (centery < 0) centery = 0;
				return {minx: minx, miny: miny, maxx: maxx, maxy: maxy, centerx: centerx, centery: centery};
			},
			
			// 居中对齐
			center: function(){
				 var t = $.security(_dialog)
				_dialog.style.left = t.centerx + 'px';
				_dialog.style.top = t.centery + 'px';
				return $;
			},

			// 位置(指定元素附近弹出, 横坐标, 纵坐标, 是否静止定位)
			align: function(menubtn, left, top, fixed) {
				var t = $.security(_dialog);

				// 获取指定对象的坐标，让对话框在按钮附近当作菜单弹出
				if (menubtn && menubtn.getboundingclientrect) {
					var w = $.data.boxwidth / 2 - menubtn.offsetwidth / 2,
					h = menubtn.offsetheight,
					ml = menubtn.getboundingclientrect().left,
					mt = menubtn.getboundingclientrect().top;

					if (w > ml) w = 0;
					if (mt + h > m.winheight - $.data.boxheight) h = - $.data.boxheight;

					left = ml + m.pageleft - w;
					top = mt + m.pagetop + h;
				};

				if (fixed) {
					if (ie6) addclass($gtag('html')[0], 'ui_ie6_fixed');// 关闭对话框不要清除此类，它只用来消除ie6抖动的问题
					addclass(_dialog_wrap, 'ui_fixed');
				};

				if(!left){
					$.data.boxleft = t.centerx;
				}else if(left == 'left'){
					$.data.boxleft = t.minx;
				}else if(left == 'right'){
					$.data.boxleft = t.maxx;
				}else{
					left = fixed ? left - m.pageleft : left;// 把原点移到浏览器视口
					left = left < t.minx ? t.minx : left;
					left = left > t.maxx ? t.maxx : left;
					$.data.boxleft = left;
				};
				if (!top){
					$.data.boxtop = t.centery;
				} else if (top == 'top'){
					$.data.boxtop = t.miny;
				} else if (top == 'bottom'){
					$.data.boxtop = t.maxy;
				} else {
					top = fixed ? top - m.pagetop : top;// 把原点移到浏览器视口
					top = top < t.miny ? t.miny : top;
					top = top > t.maxy ? t.maxy : top;
					$.data.boxtop = top;
				};
				
				if (_dialog_wrap.id == hideid) $.data.boxleft = '-99999';// 让预加载背景图的对话框偏离可视范围
				_dialog.style.left = $.data.boxleft + 'px';
				_dialog.style.top = $.data.boxtop + 'px';
				$.zindex(_dialog);
				
				return $;
			},

			// 确定按钮(回调函数, 按钮文本)
			yesbtn: function(fn, txt){
				if (typeof fn === 'function') {
					_yesbtn.innerhtml = txt;
					_yeswrap.appendchild(_yesbtn);
					_btns.appendchild(_yeswrap);
					_yesbtn.onclick = function() {
						var f = fn();
						if (f != false) $.close();// 如果回调函数返回false则不关闭对话框
					};
					
					// 给确定按钮添加一个 ctrl + enter 快捷键
					_dialog.onkeyup = function(evt){
						var e = evt || window.event;
						if(e.ctrlkey && e.keycode == 13) _yesbtn.click();
					};
				};
				return $;
			},

			// 取消按钮(回调函数, 按钮文本)
			nobtn: function(fn, txt){
				if (typeof fn === 'function') {
					_nobtn.innerhtml = txt;
					_nowrap.appendchild(_nobtn);
					_btns.appendchild(_nowrap);
					_nobtn.onclick = function() {
						var f = fn();
						if (f != false) $.close();// 如果回调函数返回false则不关闭对话框
					};
				};
				return $;
			},

			// 关闭按钮(回调函数)
			closebtn: function(fn){
				_close.onclick = function(){
					if (typeof fn === 'function') {
						var f = fn();
						if (f != false) $.close();// 如果回调函数返回false则不关闭对话框
					} else {
						$.close();
					};
					return false;
				};
				return $;
			},

			// 焦点定位
			btnfocus: function(){
				settimeout(function(){
					try{
						if ($.data.config.nofn) {
							_nobtn.focus();
						} else
						if ($.data.config.yesfn) {
							_yesbtn.focus();
						} else {
							_close.focus();
						};
					}catch(_){};
				}, 40);
				return $;
			},

			// 关闭对话框(回调函数)
			close: function(f) {
				if (f) {
					if (typeof f === 'function') $.data.closefn = f;
					return $;
				};

				// 执行回调函数
				if ($.data.closefn) {
					var cfn = $.data.closefn();
					if (cfn != false) {
						$.data.closefn = null;
					} else {
						return $;
					};
				};
				
				_btable.classname = _dialog.style.csstext = _title_text.innerhtml = _content.innerhtml = _btns.innerhtml = _dialog_wrap.id = '';// 设置复位
				each(['ui_fixed', 'ui_loading', 'ui_focus', 'ui_iframe'], function(o, i) {
						removeclass(_dialog_wrap, o);
				});
				_dialog_wrap.style.visibility = 'hidden';

				$._iframe = null;

				$.lock.hide();
				onmouse = false;
				$.free = true;
			},
			
			// 定时关闭对话框(秒)
			time: function(t) {
				if (typeof t === 'number') settimeout(function(){
					$.close();
				}, 1000 * t);
				return $;
			},
			

			// 对话框叠加高度
			zindex: function() {
				zindex++;
				_dialog.style.zindex = _overlay.style.zindex = _dialog_wrap.style.zindex = zindex; //_dialog_wrap: ie6与opera叠加高度受具有绝对或者相对定位的父元素z-index控制
				_move_temp.style.zindex = zindex + 1;
				
				// 当出现多个对话框时，让顶层对话框显得与众不同
				if (infocus) removeclass(infocus, 'ui_focus');
				addclass(_dialog_wrap, 'ui_focus');
				infocus = _dialog_wrap;
				
				// 定义esc键关闭最高的弹出层
				if (closekey) unbind(document, 'keyup', closekey);
				closekey = function(evt){
					var e = evt || window.event;
					if (e.keycode == 27) _close.onclick();
				};
				bind(document, 'keyup', closekey);
				
				return $;
			},

			// 显示加载提示
			loading: {
				show: function(){
					addclass(_dialog_wrap, 'ui_loading');
					return $;
				},
				
				hide: function(){
					removeclass(_dialog_wrap, 'ui_loading');
					return $;
				}
			},
			
			// 锁屏
			lock: {
				show: function(){
					if (pagelock >= 1) return $;// 遮罩数量限制(ie只支持一个)

					var h = $gtag('html')[0];
					addclass(_dialog_wrap, 'ui_lock');
					addclass(h, 'ui_page_lock');
					$.zindex(_overlay);

					// 让tab等键在对话框中仍然能使用
					_dialog.onkeydown = function(evt){
						var e = evt || window.event,
							key = e.keycode;
						if (key == 9 || key == 38 || key == 40) stopbubble(e);
					};

					// 让右键在对话框中仍然能使用
					_dialog.oncontextmenu = function(evt){
						var e = evt || window.event;
						stopbubble(e);
					};

					// 页面鼠标操作限制
					var p = getpage();
					m.pageleft = p.left,
					m.pagetop = p.top;
					$.data.lockmouse = function(evt){
						var e = evt || window.event;
						stopbubble(e);
						stopdefault(e);
						scroll(m.pageleft, m.pagetop);
					};
					each(['dommousescroll', 'mousewheel', 'scroll'], function(o, i) {
							bind(document, o, $.data.lockmouse);
					});

					// 屏蔽特定按键: f5, ctrl + r, ctrl + a, tab, up, down
					$.data.lockkey = function(evt){
						var e = evt || window.event,
							key = e.keycode;
						
						// 切换按钮焦点
						if (key == 37 || key == 39 || key == 9) {
							try{
								$.data.btntab.focus();
							}catch(_){};
						};

						if((key == 116) || (e.ctrlkey && key == 82) || (e.ctrlkey && key == 65) || (key == 9) || (key == 38) || (key == 40)) {
							try{
								e.keycode = 0;// 阻止f5键默认行为需要加上这句(ie8测试)	
							}catch(_){};
							stopdefault(e);
						};
					};
					bind(document, 'keydown', $.data.lockkey);

					_overlay.onclick = _overlay.oncontextmenu = function(){
						$.btnfocus();
						return false;
					};
					
					$.alpha(_overlay, 0, function(){
						pagelock ++;
					});

					return $;
				},
				
				// 关闭锁屏
				hide: function(){
					if (_dialog_wrap.classname.indexof('ui_lock') > -1){
						$.alpha(_overlay, 1, function(){
							removeclass(_dialog_wrap, 'ui_lock');
							if (pagelock == 1) removeclass($gtag('html')[0], 'ui_page_lock');// 移除顶级页面锁屏样式
							each(['dommousescroll', 'mousewheel', 'scroll', 'contextmenu'], function(o, i) {
								unbind(document, o, $.data.lockmouse);		// 解除页面鼠标操作限制
							});
							unbind(document, 'keydown', $.data.lockkey);	// 解除屏蔽的按键
							pagelock --;
						});
					};

					return $;
				}
			},
			
			// 透明渐变(元素, 初始透明值[0,1], 回调函数)
			alpha: function(obj, int, fn){
				var m = obj.filters ? 100 : 1,		// 最大值
					s = m / alphafx;				// 速度

				s = int == 0 ? s : -s;
				int = (obj.filters && int == 1) ? 100 : int;

				var fx = function(){
					int = int + s;
					obj.filters ? obj.filters.alpha.opacity = int : obj.style.opacity = int;

					if (0 >= int || int >= m) {
						if (fn) fn();
						clearinterval($.data.startfx);
					};
				};
				fx();

				clearinterval($.data.startfx);
				$.data.startfx = setinterval(fx, 40);

				return $;
			}

		};

		
		// 保存对话框列队
		return boxs[boxs.push($) - 1];
	};
	
	// 
	// 	artdialog兼容框架样式[内部版本1.3 2010-06-02]
	// 	
	// 
	addstyle('.ui_dialog_wrap{visibility:hidden}.ui_title_icon,.ui_content,.ui_dialog_icon,.ui_btns span{display:inline-block;*zoom:1;*display:inline}.ui_dialog{text-align:left;position:absolute;top:0}.ui_dialog table{border:0;margin:0;border-collapse:collapse}.ui_dialog td{padding:0}.ui_title_icon,.ui_dialog_icon{vertical-align:middle;_font-size:0}.ui_title_text{overflow:hidden;cursor:default}.ui_close{display:block;position:absolute;outline:none}.ui_content_wrap{text-align:center}.ui_content{margin:10px;text-align:left}.ui_iframe .ui_content{margin:0;*padding:0;display:block;height:100%;position:relative}.ui_iframe .ui_content iframe{border:none;overflow:auto}.ui_content_mask {visibility:hidden;width:100%;height:100%;position:absolute;top:0;left:0;background:#fff;filter:alpha(opacity=0);opacity:0}.ui_bottom{position:relative}.ui_resize{position:absolute;right:0;bottom:0;z-index:1;cursor:nw-resize;_font-size:0}.ui_btns{text-align:right;white-space:nowrap}.ui_btns span{margin:5px 10px}.ui_btns button{cursor:pointer}* .ui_ie6_select_mask{position:absolute;top:0;left:0;z-index:-1;filter:alpha(opacity=0)}.ui_loading .ui_content_wrap{position:relative;min-width:9em;min-height:3.438em}.ui_loading .ui_btns{display:none}.ui_loading_tip{visibility:hidden;width:5em;height:1.2em;text-align:center;line-height:1.2em;position:absolute;top:50%;left:50%;margin:-0.6em 0 0 -2.5em}.ui_loading .ui_loading_tip,.ui_loading .ui_content_mask{visibility:visible}.ui_loading .ui_content_mask{filter:alpha(opacity=100);opacity:1}.ui_move .ui_title_text{cursor:move}.ui_page_move .ui_content_mask{visibility:visible}.ui_move_temp{visibility:hidden;position:absolute;cursor:move}.ui_move_temp div{height:100%}html>body .ui_fixed .ui_move_temp{position:fixed}html>body .ui_fixed .ui_dialog{position:fixed}* .ui_ie6_fixed{background:url(*) fixed}* .ui_ie6_fixed body{height:100%}* html .ui_fixed{width:100%;height:100%;position:absolute;left:expression(documentelement.scrollleft+documentelement.clientwidth-this.offsetwidth);top:expression(documentelement.scrolltop+documentelement.clientheight-this.offsetheight)}* .ui_page_lock select,* .ui_page_lock .ui_ie6_select_mask{visibility:hidden}.ui_overlay{visibility:hidden;_display:none;position:fixed;top:0;left:0;width:100%;height:100%;filter:alpha(opacity=0);opacity:0;_overflow:hidden}.ui_lock .ui_overlay{visibility:visible;_display:block}.ui_overlay div{height:100%}* html body{margin:0}');
	
	if (ie6) document.execcommand('backgroundimagecache', false, true);// 开启ie css背景图片缓存
	
	// 页面载入即启动一个隐秘对话框，让浏览器预先加载皮肤背景图片
	bind(window, 'load', function(){
		if (!infocus) artdialog({id:hideid, style:'confirm alert error succeed', time:10}, function(){}, function(){});
	});
	
	// 对话框接口
	art.dialog = ini;
	this.artdialog = ini;// 兼容老版本调用方式
})();