var timer;
var timer2;
var ntt = 0;
function on_load()
{
	init();//初始化显示第一张图片
	Change_img_Even();
	init_Year();
}

function init_Year()
{
	var select_year = document.getElementById('select_year');
	var date = new Date();
	for(var i = date.getUTCFullYear();i>= date.getUTCFullYear()-3;i --)
	{
		var option = new Option(i,i);
		select_year.options.add(option);
	}
}

function change_year(year)
{
	var y = new Date().getUTCFullYear();
	for(var i=0;i<4;i++)
	{
		document.getElementById('y'+y).style.display = "none";
		document.getElementById('d'+y).style.display = "none"
		y--;
	}
	document.getElementById('y'+year).style.display = "";
	document.getElementById('d'+year).style.display = "";
}

function doit(newsItem)
{
	var series_date = checkItem(newsItem,'series_date');
	var cars_code = checkItem(newsItem,'cars_code');
	var min_p = checkItem(newsItem,'min');
	var max_p = checkItem(newsItem,'max');
	var month = checkItem(newsItem,'month');
	var logo_url = checkItem(newsItem,'logo_url');
	var series_name = checkItem(newsItem,'series_name');
	
	var new_cars = document.getElementById('new_cars');
	new_cars.innerHTML = new_cars.innerHTML.replace('#'+month+'#','<div class="months_content"><dl><img src="../../images/new_cars/bk_logo.gif" /><dt><a href="#" target="_blank">品牌汽车金融</a></dt><dd>1.18-33.98万</dd><dd>1月6日上市</dd></dl><dl><img src="../../images/new_cars/bk_logo.gif" /><dt><a href="#" target="_blank">品牌汽车金融</a></dt><dd>1.18-33.98万</dd><dd>1月6日上市</dd></dl></div>');

}

function go_search(){
	var key = document.getElementById('TopKetText').value.replace('快速搜索','');
	window.open('http://www.yescar.cn/news/news_search.html?k=' + escape(key));
}



function Change_img_Even()
{
	var as=document.getElementById('news_top').getElementsByTagName('a');
	var li_list = document.getElementById('news_top').getElementsByTagName('li');
	var temp = 0 ;
	for(var i=0;i<as.length;i++)
	{
		(function(){
					  var p=i;
						  li_list[i]["onmouseover"]=function(){
							  if(li_list[p].className!='ch')
							  {
								 timer = window.setTimeout(function(){			
									for(var j=0;j<li_list.length;j++)
									{
										li_list[j].className='';
									}
								  li_list[p].className='ch';
								  document.getElementById('big_img').src = as[p].name;
								  document.getElementById('big_img').alt = as[p].innerText;
								  document.getElementById('big_img_a').href = as[p].href;
								  clearInterval(timer2);	
								  temp = p;
								},150);
							 }
						  }
						  li_list[i]["onmouseout"]=function(){
							  clearInterval(timer);
							  clearInterval(timer2);
							  clickImg(temp)	  
						  }
		})();
	}
}

function init()
{
	var li = document.getElementById('news_top').getElementsByTagName('li')[0];
	var a = document.getElementById('news_top').getElementsByTagName('a')[0];
	document.getElementById('big_img').src = a.name;
	document.getElementById('big_img').alt = li.innerText;
	li.className = 'ch';
	document.getElementById('big_img_a').href = a.href;
	clickImg(0);
}

function clickImg(p)
{
	
	clearInterval(timer2);
	ntt = p;
	changeImg(p);
	timer2 = setTimeout('change_div()',5000);
}

function changeImg(p){

	var li_list = document.getElementById('news_top').getElementsByTagName('li');
	var a = document.getElementById('news_top').getElementsByTagName('a');
	
	for(var j=0;j<li_list.length;j++)
	{
		li_list[j].className='';
	}
  	li_list[p].className='ch';
	
	document.getElementById('big_img').src = a[p].name;
   	document.getElementById('big_img').alt = a[p].innerText;
  	document.getElementById('big_img_a').href = a[p].href;
}

function change_div(){
	var btnArrObj = document.getElementById('news_top').getElementsByTagName('li');
	if(btnArrObj.length < 2){
		return;
	}
	ntt = ntt + 1;
	if( ntt>btnArrObj.length-1){ ntt=0; }
	changeImg(ntt);
	timer2 = setTimeout('change_div()',5000);
}



function checkItem(newsItem,id)
{
	if(document.uniqueID)
	{
		if(newsItem.getElementsByTagName(id)[0]==null)
			return '';
		return newsItem.getElementsByTagName(id)[0].text;
	}
	else
	{
		if(newsItem.getElementsByTagName(id)[0]==null)
			return '';
		return newsItem.getElementsByTagName(id)[0].textContent;
	}
}


function New_XMLHttpRequest(){
  	var xmlHttp ;
 
	if (window.XMLHttpRequest)
	{
	xmlHttp=new XMLHttpRequest()
	}
	
	// 针对 IE 的代码：
	else if (window.ActiveXObject)
	{
	xmlHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
  return xmlHttp;
}