var haikou55com={
	init:function(){
		
		var elms = document.getElementsByName("sliding");

		for(var g=0; g<elms.length; g++){
			
			var lielms = elms[g].getElementsByTagName('LI');
			
			for(var i=0; i<lielms.length; i++){
				
				lielms[i].onmousedown = function(){
					
					var pnobj = this.parentNode.parentNode.nextSibling.tagName == "DIV" ? this.parentNode.parentNode.nextSibling : this.parentNode.parentNode.nextSibling.nextSibling;
					var objsx = pnobj.getElementsByTagName('UL');
					var elmsx = this.parentNode.getElementsByTagName('LI');
					var thisx = 0;
					
					for(var j=0; j<elmsx.length; j++){
						if(elmsx[j] == this) thisx = j;
						elmsx[j].className="";
						objsx[j].style.display="none";
					}
					
					this.className='on';
					objsx[thisx].style.display="";
					
				}
			}
		}
		
	}
}



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<4;i++){
   if(value==i){
     document.getElementById("a"+value).className='on';      
		}	else{	
		 document.getElementById("a"+i).className='onnone';
		}  
} 
}
function plays(value){ 
	 for(i=0;i<4;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>3)n=0;
Mea(n);
} 
function sub(){
n--;
if(n<0)n=3;
Mea(n);
} 
setAuto();