function supprimer_popup()
  {
		if(document.getElementById)
		{
			document.getElementById("opacite").style.visibility = 'hidden';
			document.getElementById("popupDiv_payment").style.visibility = 'hidden';
			document.getElementById("popupDiv_cheque").style.visibility = 'hidden';
			document.getElementById("popupDiv_cadeau").style.visibility = 'hidden';
			document.getElementById("popupDiv_cadeau_0").style.visibility = 'hidden';
		}
  }
	function afficher_popup_payment()
  {
    if(document.getElementById)
		{
			document.getElementById("opacite").style.visibility = 'visible';
			document.getElementById("popupDiv_payment").style.visibility = 'visible';
		}
  }
  function afficher_popup_cheque()
  {
    if(document.getElementById)
		{
			document.getElementById("opacite").style.visibility = 'visible';
			document.getElementById("popupDiv_cheque").style.visibility = 'visible';
		}
  }
  function afficher_popup_cadeau()
  {
    if(document.getElementById)
		{
			document.getElementById("opacite").style.visibility = 'visible';
			document.getElementById("popupDiv_cadeau").style.visibility = 'visible';
		}
  }
  function afficher_popup_cadeau_0()
  {
    if(document.getElementById)
		{
			document.getElementById("opacite").style.visibility = 'visible';
			document.getElementById("popupDiv_cadeau_0").style.visibility = 'visible';
		}
  }