function voir(menu){document.getElementById("tdaccueil").className = "MenuGauche";document.getElementById("menu1").style.display = "none";document.getElementById("tdmenu1").className = "Menu";document.getElementById("menu2").style.display = "none";document.getElementById("tdmenu2").className = "Menu";document.getElementById("menu3").style.display = "none";document.getElementById("tdmenu3").className = "Menu";document.getElementById("menu4").style.display = "none";document.getElementById("tdmenu4").className = "Menu";document.getElementById(menu).style.display = "block";document.getElementById("td"+menu).className = "MenuOver";}function masquer(){document.getElementById("menu1").style.display = "none";document.getElementById("menu2").style.display = "none";document.getElementById("menu3").style.display = "none";document.getElementById("menu4").style.display = "none";document.getElementById("tdmenu1").className = "Menu";document.getElementById("tdmenu2").className = "Menu";document.getElementById("tdmenu3").className = "Menu";document.getElementById("tdmenu4").className = "Menu";}