if (navigator.appName=='Netscape')
    display_property = 'table-row';
else
    display_property = 'block';

function affiche_hide_TR(div, visible)
{ 
    if (visible == 0)
		document.getElementById(div).style.display = "none";
	else
		document.getElementById(div).style.display = display_property;
}

function PopupCentrer(page,largeur,hauteur,options) {
  var top=(screen.height-hauteur)/2;
  var left=(screen.width-largeur)/2;
  window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+",resizable=1,"+options);
}