// 焦点图JavaScript
function $(s){
	return document.getElementById(s);
}
function $C(tagName){
	return document.createElement(tagName);
}
function $P(child,parent){
	return parent?parent.appendChild(child):document.body.appendChild(child);
}
function $R(child,parent){
	return parent?parent.removeChild(child):document.body.removeChild(child);
}
var B2=BigNews2={
	current2:0,
	next2:0,
	scrollInterval2:0,
	autoScroller2:0
};
BigNews2.turn=function(index2){
	clearInterval(BigNews2.autoScroller2);
	BigNews2.scroll(index2);
}
BigNews2.scroll=function(index2){
	if(!$('ul_big_news_item2')){
		clearInterval(BigNews2.autoScroller2);
		return;
	}
	var count2=0;
	var step2=190;
	var duration2=16;
	var b2=BigNews2;
	b2.next2=index2;
	if(index2!=b2.current2&&count2>duration2/8){
		return;
	}
	clearInterval(b2.scrollInterval2);
	var items2=$('ul_big_news_item2').getElementsByTagName('li');
	for(var i2=0;i2<items2.length;i2++){
		items2[i2].className='off';
	}
	items2[index2].className='ons';
	var span2=index2-b2.current2;
	var begin_value2=$('div_big_news_img2').scrollTop;
	var chang_in_value2=span2*step2+(b2.current2*step2-begin_value2);
	b2.scrollInterval2=setInterval(function(){doit2(begin_value2,chang_in_value2)},10);
	function doit2(b2,c2){
		$('div_big_news_img2').scrollTop=cpu2(count2,b2,c2,duration2);
		count2++;
		if(count2==duration2){
			clearInterval(BigNews2.scrollInterval2);
			scrollInterval2=0;
			count2=0;
			$('div_big_news_img2').scrollTop=b2+c2;
			BigNews2.current2=index2;
		}
	}
	function cpu2(t2,b2,c2,d2) {return c2*((t2=t2/d2-1)*t2*t2+1)+b2;};
}
BigNews2.auto=function(){
	clearInterval(BigNews2.autoScroller2);
	BigNews2.autoScroller2=setInterval(function(){
		BigNews2.scroll(BigNews2.current2==2?0:BigNews2.current2+1);
	},3000);
}
window.attachEvent('onload',BigNews2.auto);














/* 首页OA专题轮换 */
function uservers(objid){
	//var tabObj = objid.parentNode.id;
	var tds=objid.getElementsByTagName("li");
	for(s=0;s<tds.length;s++){
      with(tds[s]){
				onmouseover = function(){
					  with(this){className = "onm";showserv(this.value);
					  }
				}
		}
	}
}
function showserv(m){
	for(i=0;i<4;i++){
		if(m==i){
			var bs=document.getElementById("b"+m);
			var us=document.getElementById("serv"+m);
			bs.className="onm";
			us.style.display="block";
			}else{
			var bsh=document.getElementById("b"+i);
			var ush=document.getElementById("serv"+i);
			bsh.className="out";
			ush.style.display="none";
			}
		}
	}