//////////////////////////////////////
// Operate Cookie 
//     code by javagosling 
//              2009-9-10 9:50
/////////////////////////////////////
function addCookie(name,value,expireHours){
       var cookieString=name+"="+escape(value);
       //判断是否设置过期时间
       if(expireHours>0){
              var date=new Date();
              date.setTime(date.getTime()+expireHours*60*60*1000);
              cookieString=cookieString+";expires="+ date.toGMTString();
			  
       }
       document.cookie=cookieString;
	   
}
 
 
 
//获取指定名称的cookie值：getCookie(name)
function getCookie(name){
       var strCookie=document.cookie;
       var arrCookie=strCookie.split("; ");
       for(var i=0;i<arrCookie.length;i++){
             var arr=arrCookie[i].split("=");
             if(arr[0]==name)return arr[1];
       }
       return "";
}
 

 
 //写入浏览历史
 function setHistory(goodsid,goodsName,goodsPhoto){
   var cookieExpires=2000;
   var cookieValue=getCookie("history");
   var arr=new Array(); 
   var v="";
   if(cookieValue!=""){
      
	  cookieValue=unescape(cookieValue);
	  var  arrList=cookieValue.split("&");
	   
	  for(var i=0;i<arrList.length&&i<=15;i++){
	     var arrItem=arrList[i].split(",");
		 if(arrItem[0]!=goodsid)
		     v+=arrList[i]+"&";
		      
	  }   
	   v=goodsid+","+goodsName+","+goodsPhoto+"&"+v;
	   v=v.substr(0,v.length-1);
	   
	    
   }
   else{
      v=goodsid+","+goodsName+","+goodsPhoto;
   }
      
 
    
 
    addCookie("history",v,cookieExpires);
 }
 
 
//获得浏览历史列表 
function getHistory(){

   var inner="";
   var historyObj=document.getElementById("history");
   var historyValue=getCookie("history");
   var arrList,arrItem;
   
   if(historyValue!=""){
     historyValue=unescape(historyValue);
	 arrList=historyValue.split("&");
	
	 for(var i=0;i<arrList.length&&i<4;i++){
	     arrItem=arrList[i].split(",");
		 inner+="<a href='/GoodsShow.aspx?id="+arrItem[0]+"'><img src=\"/thumbPhoto/"+arrItem[2]+"\"    border='0'  /> <div style='margin:10px'> "+arrItem[1]+" </div></a>";
	    
	 }
	 
	  
      
   }
   
   historyObj.innerHTML=inner;
   //alert(inner);

}
 
//删除指定名称的cookie：deleteCookie(name)
function deleteCookie(name){
        var date=new Date();
        date.setTime(date.getTime()-10000);
        document.cookie=name+"=v; expires="+date.toGMTString();
}