function ouvrecartes(nom)
{
page="#";
switch ( nom )
	{
		case "carte1":
		page="a-carte1.htm";
		break;
	case "carte2":
		page="a-carte2.htm";
		break;	
	case "carte3":
		page="a-carte3.htm";
		break;
		case "carte4":
		page="a-carte4.htm";
		break;
	
	}
x = ((screen.availWidth-540)/2); 
newWindow = window.open(page,"info_avocat","left="+x+",scrollbars,height=400,width=550");
newWindow.focus();
}