$(document).ready(function(){
	vtndurum();
	$('#lft').click(yukari);
	$('#rgt').click(asagi);
	});
	function yukari(){
		var kac = document.getElementById('vtno').value;
		if(kac == 16){return false;}
		else{
		$('#vtk'+ kac).hide('normal');
		document.getElementById('vtno').value = (kac * 1) + (1);
		}
	}
	function asagi(){
	var kac = document.getElementById('vtno').value;
	if(kac == 0){return false;}
	else{kac--;
		$('#vtk'+ kac).show('normal');
		document.getElementById('vtno').value = kac;
		}
	}	
		
	function vtndurum(){
	var kac = document.getElementById('vtno').value;
		if(kac == 16){vtyol = 1;}
		if(kac < 1){vtyol = 2;}
		if(vtyol == 2){yukari();} else{asagi();}
	setTimeout("vtndurum();",10000); 
	}