/**
        Salute v2.2.1
        © 2009 Алексей Забродин
    */
    
	Salute = {
		preloader: '/core/js/salute/loader.gif',
		autoScale: true,
		anchors: new Array(),
		temp: new Array(),
        text: {
            close: 'Закрыть',
            prev: 'Предыдущая',
            next: 'Следующая'
        },
        event: function(o, e, l)
		{
			if (o.attachEvent)
			{
				o.attachEvent('on' + e, l);
			}
			else
			{
				o.addEventListener(e, l, false);
			}
		},
		style: function(o, s)
		{
			for (var i in s)
			{
				o.style[i] = s[i];
			}
		},
		createElement: function(o, n, s)
		{
			var e = document.createElement(n);
			if (s) this.style(e, s);
			o.appendChild(e);
			return e;
		},
		each: function(o, f)
		{
			for (var i = 0; i < o.length; i++)
			{
				f.call(o[i], i);
			}
		},
		align: function(e)
		{
			e.style.top = (
                document.documentElement.scrollTop || document.body.scrollTop
            ) + (
                (document.body.clientHeight / 2) - (e.clientHeight / 2)
            ) + 'px';
            e.style.left = '0';
            e.style.left = (
                (document.body.clientWidth / 2) - (e.clientWidth / 2)
            ) + 'px';
		},
		fade: function(e)
		{
			function s(v)
			{
				e.style.opacity = (v / 10);
				e.style.filter = 'alpha(opacity=' + (v * 10) + ')';
                if (v == 10) e.style.filter = null;
			}
			function f(v)
			{
				s(v);
				if (v <= 9)
				{
					setTimeout(function()
					{
						f(v + 1);
					}, 28);
				}
			}
			f(0);
		},
		init: function()
		{
			var $ = Salute, i = 0;
			$.each(document.getElementsByTagName('a'), function()
			{
				if ((this.href) && (this.href != encodeURI(location.toString())) && this.rel == 'salute')
				{
					$.anchors.push({
                        href: this.href
                    });
                    this.index = i;
                    this.onclick = $.show;
                    i++;
				}
			});
			
			$.blind = $.createElement(document.body, 'div', {
                display: 'none',
                backgroundColor: '#000',
                position: 'absolute',
                top: '0',
                left: '0',
                width: '100%',
                height: '100%',
                zIndex: '1',
                opacity: '0.7',
                filter: 'alpha(opacity=70)'
            });
            $.blind.onclick = $.hide;
            $.container = $.createElement(document.body, 'div', {
                display: 'none',
                background: '#FFF url(' + $.preloader + ') no-repeat center center',
                border: '1px solid #444',
                padding: '10px',
                position: 'absolute',
                top: '0',
                left: '0',
                zIndex: '2'
            });
            $.img = $.createElement($.container, 'img', {
            	margin: '0'
            });
            $.img.src = $.preloader;
            
            var bs = {
                display: 'none',
                backgroundColor: '#FFF',
                fontFamily: 'Arial, Helvetica, sans-serif',
                color: '#000',
                fontSize: '13px',
                position: 'absolute',
                top: '10px',
                margin: '10px',
                padding: '0.6em',
                zIndex: '3',
                opacity: '0.7',
                filter: 'alpha(opacity=70)'
            };
            $.navBtn = $.createElement($.container, 'div', bs);
            $.navBtn.style.left = '10px';
            $.closeBtn = $.createElement($.container, 'div', bs);
            $.closeBtn.style.right = '10px';
            
            function hideBtns()
            {
            	$.closeBtn.style.display = 'none';
                $.navBtn.style.display = 'none';
            }
            function showBtns()
            {
            	if($.temp['img'].complete)
                {
                    $.closeBtn.style.display = '';
                    clearTimeout($.temp['btnTimeout']);
                    if ($.anchors.length > 1) $.navBtn.style.display = '';
                }
            }
            function shBtns()
            {
            	showBtns();
                clearTimeout($.temp['btnTimeout']);
                $.temp['btnTimeout'] = setTimeout(function()
                {
                    hideBtns();
                }, 1000);
            }
            
            $.img.onmouseout = hideBtns;
            $.img.onmousemove = shBtns;
            $.closeBtn.onmouseover = showBtns;
            $.navBtn.onmouseover = showBtns;
		},
		hide: function()
		{
			var $ = Salute;
            $.blind.style.display = 'none';
            $.container.style.display = 'none';
            $.closeBtn.style.display = 'none';
            $.navBtn.style.display = 'none';
		},
		show: function(s)
		{
			var $ = Salute, i;
			
			if ((s == 'prev') || (s == 'next'))
            {
                i = $.temp['index'];
                if((s == 'prev') && (i > 0))
                {
                    i--;
                }
                else if((s == 'prev'))
                {
                    return false;
                }
                if((s == 'next') && (i < $.anchors.length - 1))
                {
                    i++;
                }
                else if((s == 'next'))
                {
                    return false;
                }
            }
            else
            {
                i = this.index;
            }
            $.temp['index'] = i;
            $.temp['onload'] = false;
			
			$.closeBtn.innerHTML = '<a href="javascript:;" onclick="Salute.hide()" style="color: #000;">' +
                $.text.close + '</a>';
            var prev = '&larr; <a href="javascript:;" onclick="Salute.show(\'prev\')" style="color: #000;">' +
                $.text.prev + '</a>';
            var prevDis = '<span style="color: #AAA;">&larr; ' +
                $.text.prev + '</span>';
            var next = '<a href="javascript:;" onclick="Salute.show(\'next\')" style="color: #000;">' +
                $.text.next + '</a> &rarr;';
            var nextDis = '<span style="color: #AAA;">' +
                $.text.next + ' &rarr;</span>';
            var space = '&nbsp; &nbsp;';
			$.navBtn.innerHTML = prev + space + next;
            if (!i) $.navBtn.innerHTML = prevDis + space + next;
            if (i == ($.anchors.length - 1)) $.navBtn.innerHTML = prev + space + nextDis;
			
			$.event(document, 'keyup', function(e)
            {
                if($.temp['onload'] && $.blind.style.display != 'none')
                {
                    e = e || event;
                    if (e.keyCode == '37') $.show('prev');
                    if (e.keyCode == '39') $.show('next');
                    if (e.keyCode == '27') $.hide();
                }
            });
			
			function resize()
			{	
    			var w = document.body.clientWidth;
				var h = document.body.clientHeight;
				var aw = $.temp['img'].width;
				var ah = $.temp['img'].height;
    			
    			$.img.width = aw;
    			$.img.height = ah;
    			
    			function sw()
				{
					$.img.width = w - 50;
					$.img.height = ($.img.width * ah) / aw;
				}
				function sh()
				{
					$.img.height = h - 50;
					$.img.width = ($.img.height * aw) / ah;
				}
    			
    			if (($.img.width + 32) > w)
				{
					sw();
				}
				if (($.img.height + 32) > h)
				{
					sh();
				}
			}
			function topBlind()
			{
				$.blind.style.top = (
              		document.documentElement.scrollTop || document.body.scrollTop
            	) + 'px';
			}
			
			$.event(window, 'resize', function()
            {
                $.align($.container);
                topBlind();
                setTimeout(function()
				{
					resize();
               		$.align($.container);
				}, 1000);
            });
			
			$.img.style.visibility = 'hidden';
            $.container.style.display = '';
            $.align($.container);
            $.align($.container);
            $.blind.style.display = '';
            topBlind();
			
			$.temp['img'] = new Image;
            $.temp['img'].src = $.anchors[i].href;
            $.temp['img'].interval = setInterval(function()
            {
                if ($.temp['img'].complete)
                {
                    $.img.src = $.temp['img'].src;
                    $.img.style.visibility = '';
                    $.img.width = $.temp['img'].width;
                    $.img.height = $.temp['img'].height;
                    
                    if ($.autoScale)
                    {
                    	resize();
                   	}
                   	
                    $.fade($.img);
                    $.align($.container);
                    $.align($.container);
					
                    $.temp['onload'] = true;
                    clearInterval($.temp['img'].interval);
                }
            }, 10);
			
			return false;
		}
	};
	Salute.event(window, 'load', function()
	{
		Salute.init();
	});