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

var n=0;
var showNum = document.getElementById("num");

function Mea(value){
	n=value;
	setBg(value);
	plays(value);
	}
function setBg(value){
    var thepic=document.getElementById("hd-pic-play").getElementsByTagName("img");
    var thepicLen=thepic.length;
	for(var i=0;i<thepicLen;i++){
	   if(value==i){
	     document.getElementById("a"+value).className='act';
			}	else{
			 document.getElementById("a"+i).className='nor';
			}
	}
}
function plays(value){
        var thepic=document.getElementById("hd-pic-play").getElementsByTagName("img");
        var thepicLen=thepic.length;
		 for(i=0;i<thepicLen;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)", 5000)}
function auto(){
    var thepic=document.getElementById("hd-pic-play").getElementsByTagName("img");
    var thepicLen=thepic.length;
	n++;
	if(n>thepicLen-1)n=0;
	Mea(n);
}
function sub(){
    var thepic=document.getElementById("hd-pic-play").getElementsByTagName("img");
    var thepicLen=thepic.length;
	n--;
	if(n<0)n=thepicLen-1;
	Mea(n);
}
setAuto();