// JavaScript Document
// JavaScript Document
//全局变量
var pic_index = 1;
var itv;
var num = 4;
//主页图片广告300_200
function picSwitch(pic,tabs,num,id){
	stopSwitch();
	if(id!=pic_index){
		$("#"+pic+pic_index).fadeOut(400,function(){
										for(i=1;i<num+1;i++){
											$("#"+tabs+i).css({"background-color":"#fff0d1",color:"#3b0000"});												
											}
											$("#"+tabs+id).css({"background-color":"#3b0000",color:"#fff0d1"});
										$("#"+pic+id).fadeIn(400);
										pic_index=id;
										});
			/*$("#"+pic+pic_index).css("display","none");
			for(i=1;i<num+1;i++){
				$("#"+tabs+i).css({"background-color":"#fff0d1",color:"#3b0000"});												
				}
			$("#"+tabs+id).css({"background-color":"#3b0000",color:"#fff0d1"});
			$("#"+pic+id).css("display","block");*/
			pic_index=id;
		}		
		startSwitch();
	}
	
function autoPicSwitch(){
	id = pic_index+1;
	if(id>num){
		id = 1;
		}
	picSwitch('TabPic','IndexItem',num,id);
	pic_index = id;
	}

function startSwitch(){
	itv = window.setInterval("autoPicSwitch()",5000);
	}

function stopSwitch(){
	window.clearInterval(itv);
	}
function setNum(n){
	num = n;
	}
//主页图片广告300_200