//滑动
  function tab(mod,cursor,n){
	for(i=1;i<=n;i++){
		var nav=document.getElementById(mod+i);
		var cont=document.getElementById(mod+"_"+"cont"+i);
		nav.className=(i==cursor)?"ali1":"ali3";
		cont.style.display=(i==cursor)?"block":"none";
	}
}

  function newstab(mod,cursor,n){
	for(i=1;i<=n;i++){
		var nav=document.getElementById(mod+i);
		var cont=document.getElementById(mod+"_"+"cont"+i);
		nav.className=(i==cursor)?"centerli1":"centerli3";
		cont.style.display=(i==cursor)?"block":"none";
	}
}

  function dealertab(mod,cursor,n){
	for(i=1;i<=n;i++){
		var nav=document.getElementById(mod+i);
		var cont=document.getElementById(mod+"_"+"cont"+i);
		nav.className=(i==cursor)?"dealerselected":"dealernoselected";
		cont.style.display=(i==cursor)?"block":"none";
	}
}  

function setTab(m,n){
var tli=document.getElementById("menu"+m).getElementsByTagName("li"); /*获取选项卡的LI对象*/
var mli=document.getElementById("main"+m).getElementsByTagName("ul"); /*获取主显示区域对象*/
for(i=0;i<tli.length;i++){
  tli[i].className=i==n?"hover":""; /*更改选项卡的LI对象的样式，如果是选定的项则使用.hover样式*/
  mli[i].style.display=i==n?"block":"none"; /*确定主区域显示哪一个对象*/
}
}

/*幻灯*/
var n=0;
function Mea(value){
	n=value;
	setBg(value);
	plays(value);
	cons(value);
	}
function setBg(value){
	for(var i=0;i<4;i++)
   if(value==i){
		showNum.getElementsByTagName("td")[i].className='bigon';
		} 
	else{	
		showNum.getElementsByTagName("td")[i].className='bigoff';
		}  
	} 
function plays(value){
	try
	{
		with (fc)
		{
			filters[0].Apply();
			for(i=0;i<4;i++)i==value?children[i].style.display="block":children[i].style.display="none"; 
			filters[0].play(); 
		}
	}
	catch(e)
	{
		var divlist = document.getElementById("fc").getElementsByTagName("div");
		for(i=0;i<4;i++)
		{
			i==value?divlist[i].style.display="block":divlist[i].style.display="none";
		}
	}

	
}
function cons(value){
	try
	{
		with (con)
		{
				for(i=0;i<4;i++)i==value?children[i].style.display="block":children[i].style.display="none"; 		
		}
	}
	catch(e)
	{
		var divlist = document.getElementById("con").getElementsByTagName("div");
		for(i=0;i<4;i++)
		{
			i==value?divlist[i].style.display="block":divlist[i].style.display="none";
		}		
	}
}

function clearAuto(){clearInterval(autoStart)}
function setAuto(){autoStart=setInterval("auto(n)", 5000)}
function auto(){
	n++;
	if(n>3)n=0;
	Mea(n);
} 
function sub(){
	n--;
	if(n<0)n=3;
	Mea(n);
}
window.onload=function()
{
setAuto();
}