function afficheClass1()
{
	document.getElementById('1').style.visibility='visible';
	document.getElementById('1').style.display='block';
	
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass2()
{
	document.getElementById('2').style.visibility='visible';
	document.getElementById('2').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass3()
{
	document.getElementById('3').style.visibility='visible';
	document.getElementById('3').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass4()
{
	document.getElementById('4').style.visibility='visible';
	document.getElementById('4').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass5()
{
	document.getElementById('5').style.visibility='visible';
	document.getElementById('5').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass6()
{
	document.getElementById('6').style.visibility='visible';
	document.getElementById('6').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass7()
{
	document.getElementById('7').style.visibility='visible';
	document.getElementById('7').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass8()
{
	document.getElementById('8').style.visibility='visible';
	document.getElementById('8').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass9()
{
	document.getElementById('9').style.visibility='visible';
	document.getElementById('9').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass10()
{
	document.getElementById('10').style.visibility='visible';
	document.getElementById('10').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass11()
{
	document.getElementById('11').style.visibility='visible';
	document.getElementById('11').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass12()
{
	document.getElementById('12').style.visibility='visible';
	document.getElementById('12').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		
	
		 	
		document.getElementById('13').style.visibility='hidden';
		document.getElementById('13').style.display='none';
		
	

}


function afficheClass13()
{
	document.getElementById('13').style.visibility='visible';
	document.getElementById('13').style.display='block';
	
		 	
		document.getElementById('1').style.visibility='hidden';
		document.getElementById('1').style.display='none';
		
	
		 	
		document.getElementById('2').style.visibility='hidden';
		document.getElementById('2').style.display='none';
		
	
		 	
		document.getElementById('3').style.visibility='hidden';
		document.getElementById('3').style.display='none';
		
	
		 	
		document.getElementById('4').style.visibility='hidden';
		document.getElementById('4').style.display='none';
		
	
		 	
		document.getElementById('5').style.visibility='hidden';
		document.getElementById('5').style.display='none';
		
	
		 	
		document.getElementById('6').style.visibility='hidden';
		document.getElementById('6').style.display='none';
		
	
		 	
		document.getElementById('7').style.visibility='hidden';
		document.getElementById('7').style.display='none';
		
	
		 	
		document.getElementById('8').style.visibility='hidden';
		document.getElementById('8').style.display='none';
		
	
		 	
		document.getElementById('9').style.visibility='hidden';
		document.getElementById('9').style.display='none';
		
	
		 	
		document.getElementById('10').style.visibility='hidden';
		document.getElementById('10').style.display='none';
		
	
		 	
		document.getElementById('11').style.visibility='hidden';
		document.getElementById('11').style.display='none';
		
	
		 	
		document.getElementById('12').style.visibility='hidden';
		document.getElementById('12').style.display='none';
		
	
		
	

}