function showDiv( div_name ) {
			etat = document.getElementById(div_name).style.display;

			if (eval("div_name") == "impression-numerique")
			{
				document.getElementById("impression-numerique").style.display = 'block';
				document.getElementById("faconnage").style.display = 'none';
			}
			
			if (eval("div_name") == "faconnage")
			{
				document.getElementById("impression-numerique").style.display = 'none';
				document.getElementById("faconnage").style.display = 'block';
			}
		}