/* ------------------------------------------------------------------------
    www.lanrentuku.com
------------------------------------------------------------------------- */

var n=0;
var showNum = document.getElementById("num");
function Mea(value){
    n=value;
    setBg(value);
    plays(value);
    }
function setBg(value){
    for(var i=0;i<5;i++){
       if(value==i){
         document.getElementById("a"+value).className='act';      
            }   else{   
             document.getElementById("a"+i).className='nor';
            }  
    } 
}
function plays(value){ 
         for(i=0;i<5;i++){
              if(i==value){           
                document.getElementById("pc_"+value).style.display="block";
                //alert(document.getElementById("pc_"+value).style.display)
              }else{
                document.getElementById("pc_"+i).style.display="none";              
              }         
        }   
}


function clearAuto(){clearInterval(autoStart)}
function setAuto(){autoStart=setInterval("auto(n)", 3000)}
function auto(){
    n++;
    if(n>4)n=0;
    Mea(n);
} 
function sub(){
    n--;
    if(n<0)n=4;
    Mea(n);
} 
setAuto();