function afficher(idtt)
	{
		
		if(idtt==1)
			{
				document.getElementById("div1").style.display="inline";
				document.getElementById("div2").style.display="none";
				document.getElementById("div3").style.display="none";
				document.getElementById("qui1").style.display="none";
				document.getElementById("qui2").style.display="inline";
				document.getElementById("prest1").style.display="inline";
				document.getElementById("prest2").style.display="none";
				document.getElementById("go1").style.display="inline";
				document.getElementById("go2").style.display="none";
			}
		
		if(idtt==2)
			{
				document.getElementById("div1").style.display="none";
				document.getElementById("div2").style.display="inline";
				document.getElementById("div3").style.display="none";
				document.getElementById("prest1").style.display="none";
				document.getElementById("prest2").style.display="inline";
				document.getElementById("qui1").style.display="inline";
				document.getElementById("qui2").style.display="none";
				document.getElementById("go1").style.display="inline";
				document.getElementById("go2").style.display="none";
			}
			
		if(idtt==3)
			{
				document.getElementById("div1").style.display="none";
				document.getElementById("div2").style.display="none";
				document.getElementById("div3").style.display="inline";
				document.getElementById("prest1").style.display="inline";
				document.getElementById("prest2").style.display="none";
				document.getElementById("qui1").style.display="inline";
				document.getElementById("qui2").style.display="none";
				document.getElementById("go1").style.display="none";
				document.getElementById("go2").style.display="inline";
			}
		
			
					
		if(idtt==11)
			{
				document.getElementById("div1").style.display="none";
				document.getElementById("qui1").style.display="inline";
				document.getElementById("qui2").style.display="none";
			}
		
		if(idtt==21)
			{
				document.getElementById("div2").style.display="none";
				document.getElementById("prest1").style.display="inline";
				document.getElementById("prest2").style.display="none";
			}
			
			if(idtt==31)
			{
				document.getElementById("div3").style.display="none";
				document.getElementById("go1").style.display="inline";
				document.getElementById("go2").style.display="none";
			}
	}