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

			if (eval("div_name") == "e-commerce")
			{
				document.getElementById("e-commerce").style.display = 'block';
				document.getElementById("catalogue").style.display = 'none';
				document.getElementById("site-vitrine").style.display = 'none';
				document.getElementById("sur-mesure").style.display = 'none';
			}
			
			if (eval("div_name") == "catalogue")
			{
				document.getElementById("e-commerce").style.display = 'none';
				document.getElementById("catalogue").style.display = 'block';
				document.getElementById("site-vitrine").style.display = 'none';
				document.getElementById("sur-mesure").style.display = 'none';
			}
			
			if (eval("div_name") == "site-vitrine")
			{
				document.getElementById("e-commerce").style.display = 'none';
				document.getElementById("catalogue").style.display = 'none';
				document.getElementById("site-vitrine").style.display = 'block';
				document.getElementById("sur-mesure").style.display = 'none';
			}
			
			if (eval("div_name") == "sur-mesure")
			{
				document.getElementById("e-commerce").style.display = 'none';
				document.getElementById("catalogue").style.display = 'none';
				document.getElementById("site-vitrine").style.display = 'none';
				document.getElementById("sur-mesure").style.display = 'block';
			}
		}