jQuery(function($){
	$(".sia").hover(function(){
		$(".sia").removeClass("active");
		$(this).addClass("active");
	},function(){
		$(this).removeClass("active");
	});
	
	$(".site-cates li.i").click(function(){
		$(".site-cates li").removeClass("current");
		$(this).addClass("current");
		if(this.getAttribute("rel") != "")
		{
			$("#site-list .item").hide();
			$("#site-list .item[rel='"+this.getAttribute("rel")+"']").show();
		}
	});
	
	$("#links .close").click(function(){
		$("#links").hide();
	});
	
	$("#top .toggle").click(function(){
		if($("#city-list").css("display") == "none")
		{
			$("#city-list").bgiframe();
			$("#city-list").show();
			$("body").one("click", function(){
				$("#city-list").hide();
			}); 
		}
		else
			$("#city-list").hide();
		this.blur();
		return false;
	});
	
	$(".e-item").each(function(i){
		$(this).hover(function(){
			$(this).addClass("cur");
		},function(){
			$(this).removeClass("cur");
		});
	});

	//if($(".settime").length > 0)
	//	updateEndTime();
});

var FIRST_RUN_updateEndTime = true;
function updateEndTime()
{
	var date = new Date();
	var time = date.getTime();
	var isExpired = false;
	$("div.tuangou_box > div > div.settime[endtime]").each(function(i){
		if(!FIRST_RUN_updateEndTime && $(this).css("display") == 'none') return true;

		var endDate =new Date(this.getAttribute("endTime"));
		var addTime = parseInt(this.getAttribute("addTime"));
		var endTime = endDate.getTime();

		var lag = (endTime - time) / 1000;
		if(lag > 0)
		{
			var todaystarthtml = ''; 
			if(addTime>=todaystart)
			{
				todaystarthtml = "今日开始，";
			}
			else 
			{
				var s = time / 1000 - todaystart;
				if(s<0) s = 0;
				var i = parseInt((todaystart - addTime + s)/86400);
				if(i > 0 )
				{
					todaystarthtml = i + "天前开始，";;
				}
				else
				{
					todaystarthtml = "约"+ parseInt((todaystart - addTime + s)/3600) +"小时前开始，";
				}
				
			}
			if(this.getAttribute("addTime") == null)
			{
				todaystarthtml = ''; 
			}
		
			var second = Math.floor(lag % 60);     
			var minite = Math.floor((lag / 60) % 60);
			var hour = Math.floor((lag / 3600) % 24);
			var day = Math.floor((lag / 3600) / 24);
			$(this).html(todaystarthtml + "剩余："+day+"天"+hour+"小时"+minite+"分"+second+"秒");
		}
		else{
			if(! $(this).attr("isexpired")){
				var publicDate = new Date();
				publicDate.setTime(addTime * 1000);
				$(this).html('<span class="expire_sign">过期</span> <span>'.concat(publicDate.getFullYear(), '年', publicDate.getMonth() + 1, '月', publicDate.getDate(), '日发布</span>'));
				isExpired = true;
				$(this).parent().parent().parent().addClass("tuangou_expired");
				$(this).attr("isexpired", "yes");
			}
		}
	});
	if(isExpired){
		var isIE = false;
		if (!document.createElement('canvas').getContext) isIE = true;
		var oRE_urlExternal = new RegExp('https?://(?!' + window.location.hostname + ')');
		$('li.tuangou_expired img').each(function(i){
			if(! $(this).attr("isgray")){
				if(!isIE){
					if(oRE_urlExternal.test(this.src)){
						//$(this).fadeTo(0, 0.5);
						//$(this).parent().css({"display": "block", "background-color": "#EEE"});
					}else{
						//grayscale(this);
					}
				}
				$(this).attr("isgray", "yes");
			}
		});
		$('li.tuangou_expired > div.tuangou_box').each(function(i){
			var oIcon = $(this).children('div.icon_new');
			if(oIcon.length > 0){
				oIcon.attr('class', 'icon_old');
			}else if($(this).children('div.icon_old').length < 1){
				$(this).append('<div class="icon_old"></div>');
			}
		});
	}

	if(FIRST_RUN_updateEndTime) FIRST_RUN_updateEndTime = false;
	setTimeout("updateEndTime()",1000);
}

function clockTime()
{
	var date = new Date();
	var D="";
	switch(parseInt(date.getDay()))
	{
		case 0:
		 D="天";
		 break;
		case 1:
		 D="一";
		 break;
		case 2:
		 D="二";
		 break;
		case 3:
		 D="三";
		 break;
		case 4:
		 D="四";
		 break;
		case 5:
		 D="五";
		 break;
		case 6:
		 D="六";
		 break;
	}
	
	var year = date.getFullYear();
	var month = date.getMonth()+1;
	if(month < 10)
		month = "0"+ month;
		
	var date1 = date.getDate();
	if(date1 < 10)
		date1 = "0"+ date1;
		
	var hours = date.getHours();
	if(hours < 10)
		hours = "0"+ hours;
		
	var minutes = date.getMinutes();
	if(minutes < 10)
		minutes = "0"+ minutes;
		
	var seconds = date.getSeconds();
	if(seconds < 10)
		seconds = "0"+ seconds;
	
	var str=year+"年"+month+"月"+date1+"日 "+"星期"+D+" "+hours+":"+minutes+":"+seconds;
	
	$("#clock_box").html(str);
	
	setTimeout("clockTime()",1000);
}




var grayscale = (function(){
    
    var config = {
            colorProps: ['color','backgroundColor','borderBottomColor','borderTopColor','borderLeftColor','borderRightColor','backgroundImage'],
            externalImageHandler : {
                /* Grayscaling externally hosted images does not work
                   - Use these functions to handle those images as you so desire */
                /* Out of convenience these functions are also used for browsers
                   like Chrome that do not support CanvasContext.getImageData */
                init : function(el, src) {
                    if (el.nodeName.toLowerCase() === 'img') {
                        // Is IMG element...
                    } else {
                        // Is background-image element:
                        // Default - remove background images
                        data(el).backgroundImageSRC = src;
                        el.style.backgroundImage = '';
                    }
                },
                reset : function(el) {
                    if (el.nodeName.toLowerCase() === 'img') {
                        // Is IMG element...
                    } else {
                        // Is background-image element:
                        el.style.backgroundImage = 'url(' + (data(el).backgroundImageSRC || '') + ')';
                    }
                }
            }
        },
        log = function(){
            try { window.console.log.apply(console, arguments); }
            catch(e) {};
        },
        isExternal = function(url) {
            // Checks whether URL is external: 'CanvasContext.getImageData'
            // only works if the image is on the current domain.
            return (new RegExp('https?://(?!' + window.location.hostname + ')')).test(url);
        },
        data = (function(){
            
            var cache = [0],
            expando = 'data' + (+new Date());
            
            return function(elem) {
                var cacheIndex = elem[expando],
                    nextCacheIndex = cache.length;
                if(!cacheIndex) {
                    cacheIndex = elem[expando] = nextCacheIndex;
                    cache[cacheIndex] = {};
                }
                return cache[cacheIndex];
            };
            
        })(),
        desatIMG = function(img, prepare, realEl) {
            
            // realEl is only set when img is temp (for BG images)
            
            var canvas = document.createElement('canvas'),
                context = canvas.getContext('2d'),
                height = img.naturalHeight || img.offsetHeight || img.height,
                width = img.naturalWidth || img.offsetWidth || img.width,
                imgData;
                
            canvas.height = height;
            canvas.width = width;
            context.drawImage(img, 0, 0);
            try {
                imgData = context.getImageData(0, 0, width, height);
            } catch(e) {}
            
            if (prepare) {
                desatIMG.preparing = true;
                // Slowly recurse through pixels for prep,
                // :: only occurs on grayscale.prepare()
                var y = 0;
                (function(){
                    
                    if (!desatIMG.preparing) { return; }
                    
                    if (y === height) {
                        // Finished!
                        context.putImageData(imgData, 0, 0, 0, 0, width, height);
                        realEl ? (data(realEl).BGdataURL = canvas.toDataURL())
                               : (data(img).dataURL = canvas.toDataURL())
                    }
                    
                    for (var x = 0; x < width; x++) {
                        var i = (y * width + x) * 4;
                        // Apply Monoschrome level across all channels:
                        imgData.data[i] = imgData.data[i+1] = imgData.data[i+2] =
                        RGBtoGRAYSCALE(imgData.data[i], imgData.data[i+1], imgData.data[i+2]);
                    }
                    
                    y++;
                    setTimeout(arguments.callee, 0);
                    
                })();
                return;
            } else {
                // If desatIMG was called without 'prepare' flag
                // then cancel recursion and proceed with force! (below)
                desatIMG.preparing = false;
            }
            
            for (var y = 0; y < height; y++) {
                for (var x = 0; x < width; x++) {
                    var i = (y * width + x) * 4;
                    // Apply Monoschrome level across all channels:
                    imgData.data[i] = imgData.data[i+1] = imgData.data[i+2] =
                    RGBtoGRAYSCALE(imgData.data[i], imgData.data[i+1], imgData.data[i+2]);
                }
            }
            
            context.putImageData(imgData, 0, 0, 0, 0, width, height);
            return canvas;
        
        },
        getStyle = function(el, prop) {
            var style = document.defaultView && document.defaultView.getComputedStyle ? 
                        document.defaultView.getComputedStyle(el, null)[prop]
                        : el.currentStyle[prop];
            // If format is #FFFFFF: (convert to RGB)
            if (style && /^#[A-F0-9]/i.test(style)) {
                    var hex = style.match(/[A-F0-9]{2}/ig);
                    style = 'rgb(' + parseInt(hex[0], 16) + ','
                                   + parseInt(hex[1], 16) + ','
                                   + parseInt(hex[2], 16) + ')';
            }
            return style;
        },
        RGBtoGRAYSCALE = function(r,g,b) {
            // Returns single monochrome figure:
            return parseInt( (0.2125 * r) + (0.7154 * g) + (0.0721 * b), 10 );
        },
        getAllNodes = function(context) {
            var all = Array.prototype.slice.call(context.getElementsByTagName('*'));
            all.unshift(context);
            return all;
        };
        
    var init = function(context) {
        
        // Handle if a DOM collection is passed instead of a single el:
        if (context && context[0] && context.length && context[0].nodeName) {
            // Is a DOM collection:
            var allContexts = Array.prototype.slice.call(context),
                cIndex = -1, cLen = allContexts.length;
            while (++cIndex<cLen) { init.call(this, allContexts[cIndex]); }
            return;
        }
        
        context = context || document.documentElement;
        
        if (!document.createElement('canvas').getContext) {
            context.style.filter = 'progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)';
            context.style.zoom = 1;
            return;
        }
        
        var all = getAllNodes(context),
            i = -1, len = all.length;
            
        while (++i<len) {
            var cur = all[i];
            
            if (cur.nodeName.toLowerCase() === 'img') {
                var src = cur.getAttribute('src');
                if(!src) { continue; }
                if (isExternal(src)) {
                    config.externalImageHandler.init(cur, src);
                } else {
                    data(cur).realSRC = src;
                    try {
                        // Within try statement just encase there's no support....
                        cur.src = data(cur).dataURL || desatIMG(cur).toDataURL();
                    } catch(e) { config.externalImageHandler.init(cur, src); }
                }
                
            } else {
                for (var pIndex = 0, pLen = config.colorProps.length; pIndex < pLen; pIndex++) {
                    var prop = config.colorProps[pIndex],
                    style = getStyle(cur, prop);
                    if (!style) {continue;}
                    if (cur.style[prop]) {
                        data(cur)[prop] = style;
                    }
                    // RGB color:
                    if (style.substring(0,4) === 'rgb(') {
                        var monoRGB = RGBtoGRAYSCALE.apply(null, style.match(/\d+/g));
                        cur.style[prop] = style = 'rgb(' + monoRGB + ',' + monoRGB + ',' + monoRGB + ')';
                        continue;
                    }
                    // Background Image:
                    if (style.indexOf('url(') > -1) {
                        var urlPatt = /\(['"]?(.+?)['"]?\)/,
                            url = style.match(urlPatt)[1];
                        if (isExternal(url)) {
                            config.externalImageHandler.init(cur, url);
                            data(cur).externalBG = true;
                            continue;
                        }
                        // data(cur).BGdataURL refers to caches URL (from preparation)
                        try {
                            var imgSRC = data(cur).BGdataURL || (function(){
                                    var temp = document.createElement('img');
                                    temp.src = url;
                                    return desatIMG(temp).toDataURL();
                                })();
                            
                            cur.style[prop] = style.replace(urlPatt, function(_, url){
                                return '(' + imgSRC + ')';
                            });
                        } catch(e) { config.externalImageHandler.init(cur, url); }
                    }
                }
            }
        }
        
    };
    
    init.reset = function(context) {
        // Handle if a DOM collection is passed instead of a single el:
        if (context && context[0] && context.length && context[0].nodeName) {
            // Is a DOM collection:
            var allContexts = Array.prototype.slice.call(context),
                cIndex = -1, cLen = allContexts.length;
            while (++cIndex<cLen) { init.reset.call(this, allContexts[cIndex]); }
            return;
        }
        context = context || document.documentElement;
        if (!document.createElement('canvas').getContext) {
            context.style.filter = 'progid:DXImageTransform.Microsoft.BasicImage(grayscale=0)';
            return;
        }
        var all = getAllNodes(context),
            i = -1, len = all.length;
        while (++i<len) {
            var cur = all[i];
            if (cur.nodeName.toLowerCase() === 'img') {
                var src = cur.getAttribute('src');
                if (isExternal(src)) {
                    config.externalImageHandler.reset(cur, src);
                }
                cur.src = data(cur).realSRC || src;
            } else {
                for (var pIndex = 0, pLen = config.colorProps.length; pIndex < pLen; pIndex++) {
                    if (data(cur).externalBG) {
                        config.externalImageHandler.reset(cur);
                    }
                    var prop = config.colorProps[pIndex];
                    cur.style[prop] = data(cur)[prop] || '';
                }
            }
        }
    };
    
    init.prepare = function(context) {
        
        // Handle if a DOM collection is passed instead of a single el:
        if (context && context[0] && context.length && context[0].nodeName) {
            // Is a DOM collection:
            var allContexts = Array.prototype.slice.call(context),
                cIndex = -1, cLen = allContexts.length;
            while (++cIndex<cLen) { init.prepare.call(null, allContexts[cIndex]); }
            return;
        }
        
        // Slowly recurses through all elements
        // so as not to lock up on the user.
        
        context = context || document.documentElement;
        
        if (!document.createElement('canvas').getContext) { return; }
        
        var all = getAllNodes(context),
            i = -1, len = all.length;
        
        while (++i<len) {
            var cur = all[i];
            if (data(cur).skip) { return; }
            if (cur.nodeName.toLowerCase() === 'img') {
                if (cur.getAttribute('src') && !isExternal(cur.src)) {
                    desatIMG(cur, true);
                }
                
            } else {
                var style = getStyle(cur, 'backgroundImage');
                if (style.indexOf('url(') > -1) {
                    var urlPatt = /\(['"]?(.+?)['"]?\)/,
                        url = style.match(urlPatt)[1];
                    if (!isExternal(url)) {
                        var temp = document.createElement('img');
                        temp.src = url;
                        desatIMG(temp, true, cur);
                    }
                }
            }
        }
    };
    
    return init;

})();