function AjaxObject(){
	var request = null;
	try
	{
		request = new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch (e)
	{
		try
		{
			request = new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch (oc)
		{
			request = null;
		}
	}
if (!request && typeof XMLHttpRequest != "undefined")
{
	try
	{
	  request =  new XMLHttpRequest();
	}
	catch (fa)
	{
		alert("抱歉，您的浏览器不支持这个功能，请选择IE 6.0或FireFox浏览器。")
		request = null;
	}
}
return request;
}



function GetHistoryList(value)
{
	url="/AjaxHistory.aspx?proid="+value+""
	var xmlHttp = AjaxObject();
	url+="&rand="+Math.random();
	
	xmlHttp.onreadystatechange=function()
	{
		if (xmlHttp.readyState==4 && xmlHttp.status==200)
		{
		    if (xmlHttp.responseText == "")
		    {
		    	GetHistoryList(value);
		    }else
		    {
				var response = xmlHttp.responseText;
				document.getElementById('divhistory').innerHTML = response;
			}
		}
	};
	
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function setCookie(name,value)
{
  var Days = 30; //此 cookie 将被保存 30 天
  var exp  = new Date();    //new Date("December 31, 9998");
  exp.setTime(exp.getTime() + Days*24*60*60*1000);
  document.cookie = name + "="+ escape(value) +";expires="+ exp.toGMTString()+ ";Path=/";
}

function getCookie(name)
{
   
	var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
	if(arr != null)
		return unescape(arr[2]);
	return null;
}

function SetHistoryCookie(proid)
{

	if(proid!='')
	{
		var mycookie=getCookie('ProIDs');
		if(mycookie==null)//不存在cookie
		{
			setCookie("ProIDs",proid);
	
		}else
		{
			arr_mycookie=mycookie.split(',');
			if(arr_mycookie.length > 10)
			{
				mycookie = '';
				for(var i = 0;i < 10;i++)
				{
				 	if(mycookie=='')
				  {
				  
					mycookie = arr_mycookie[i];
					
				   }else
				   {
				   
					 mycookie += "," + arr_mycookie[i];
					   
					}
				 }
			 }
			if(mycookie.indexOf(proid)==-1)
			{	
				setCookie("ProIDs",proid + "," + mycookie)
			}
			
		}
		
	}
}

function show_history(proid) 
   {   
		SetHistoryCookie(proid);//设置cookie
		
		
	}