/******************************************************************** 
  非IE返回false
  如果是IE，则返回具体的IE版本，包括5、6、7、8、9
********************************************************************/
var isIE = function () {
    var v = 3, 
        div = document.createElement('div'),
        i = div.getElementsByTagName('i');
    do {
        div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->';
    } while (i[0]);
    return v > 4 ? v : false; 
};
var ieVersion = isIE();

/* 首页图片切换广告 */
$(document).ready(function(){
	var picArray = new Array();
	var linkArray = new Array();
	var picNumber = 5;

	var loc = document.location.href;
	var CURRENT_PATH = "SKIN"
	if (loc.indexOf("garden")){
		CURRENT_PATH = "GARDEN"
	}
	
	//切换图片函数	
	var changePic = function(picNumber, target, speed){
		path = picArray[picNumber];
		link = linkArray[picNumber];

		$(".ad-main").attr("href",link);
		$(".ad-main").attr("target",target);
		$(".ad-main").bind("click" , function(){
				pgvSendClick({hottag:"TR.SHURU." + CURRENT_PATH + ".BANNER_" + (picNumber+1)});
			}
		);


		$("#main-ad-pic").fadeTo(speed, 0.2, function(){
			$("#main-ad-pic").attr("src", path);
		});
		
		$("#main-ad-pic").fadeTo(speed, 1, function(){
			$("#main-ad-pic").attr("src", path);
		});
		
	};

	//取出所有广告的地址	
	for(var i = 0; i < 5; i++){
		picArray.push($(".ad-wrapper .small-ad-" + i + " img").attr("src"));
		linkArray.push($(".ad-wrapper .small-ad-" + i + " img").attr("href"));
	}
	/*
	linkArray[0] = "http://shurufa.qq.com/mac/";
	linkArray[1] = "http://py.qq.com/";
	linkArray[2] = "http://t.qq.com/qqshurufa";
	linkArray[3] = "http://wubi.qq.com/";
	linkArray[4] = "http://py.qq.com/ ";
	*/
	//每隔5秒切换一次广告	
	setInterval(function(){
		picNumber = (picNumber + 1) % 5 ;
		//调用changePic切换广告
		var target = "_blank";		

		changePic(picNumber, target, "slow");
		
		//切换小图标
		if(ieVersion == 6){//for ie6
			$("div.mask").animate("fast", function(){
				$(this).css("border", "none");
			});
			$(".ad-wrapper .small-ad-" + picNumber + " .mask").animate("fast", function(){
				$(this).css("border", "#249F94 2px solid");
			});
		}
		else{//for other browsers
			$("div.mask").fadeTo("slow", 0.8, function(){
				$(this).show();
			});
			$(".ad-wrapper .small-ad-" + picNumber + " .mask").fadeTo("slow", 0, function(){
				$(this).hide();
			});
		}
	},5000);
	
	//绑定小图标的click事件
	$(".ad-wrapper div.small-ad").bind("click", function(){
		var imgPath = $(this).find("img").attr("src");
		picNumber = parseInt($(this).find("img").attr("id"));

		var target = "_blank";		

		changePic(picNumber, target, "slow");
		
		if(ieVersion == 6){//for ie6
			$("div.mask").animate("fast", function(){
				$(this).css("border", "none");
			});
			$(this).find(".mask").animate("fast", function(){
				$(this).css("border", "#249F94 2px solid");
			});
		}
		else{//for other browsers
			$("div.mask").fadeTo("fast", 0.8, function(){
				$(this).show();
			});
			$(this).find(".mask").fadeTo("slow", 0, function(){
				$(this).hide();
			});
		}
	});
});