function swap(n,len,obj){
		
              for(var i=1;i<=len;i++){
		var curC=document.getElementById(obj+"_"+i);
		var curB=document.getElementById(obj+"_t"+i);
		if(n==i){
			curC.style.display="block";
			//curB.className="active";
			document.getElementById(obj).background='images/nav0'+n+'.jpg';
		}else{
			curC.style.display="none";
			//curB.className="normal";
		}
	}
          }    
		  
		  
		
		function swap_2(n,len,obj){
		
              for(var i=1;i<=len;i++){
		var curC=document.getElementById(obj+"_"+i);
		var curB=document.getElementById(obj+"_t"+i);
		if(n==i){
			curC.style.display="block";
			//curB.className="active";
			document.getElementById(obj).background='images/tuku0'+n+'.jpg';
		}else{
			curC.style.display="none";
			//curB.className="normal";
		}
	}
          }    
		  
		  
		
		function swap_3(n,len,obj){
		
              for(var i=1;i<=len;i++){
		var curC=document.getElementById(obj+"_"+i);
		var curB=document.getElementById(obj+"_t"+i);
		if(n==i){
			curC.style.display="block";
			//curB.className="active";
			document.getElementById(obj).background='images/nav_ty0'+n+'.jpg';
		}else{
			curC.style.display="none";
			//curB.className="normal";
		}
	}
          }   
		  
		  
		  function swap_4(n,len,obj){
		window.setTimeout(function(){
			 for(var i=1;i<=len;i++){
		var curC=document.getElementById(obj+"_"+i);
		var curB=document.getElementById(obj+"_t"+i);
		if(n==i){
			curC.style.display="block";
			//curB.className="active";
			document.getElementById(obj).background='images/nav1'+n+'.jpg';
		}else{
			curC.style.display="none";
			//curB.className="normal";
		      }
        }
     },800);
   }   
   
	function swap_5(n,len,obj){
		
              for(var i=1;i<=len;i++){
		var curC=document.getElementById(obj+"_"+i);
		var curB=document.getElementById(obj+"_t"+i);
		if(n==i){
			curC.style.display="block";
			//curB.className="active";
			document.getElementById(obj).background='images/tuku3'+n+'.jpg';
		}else{
			curC.style.display="none";
			//curB.className="normal";
		}
	}
          }