function hover(obj)
{
	UL = obj.getElementsByTagName('ul');
	SELECT    = document.getElementsByTagName('select');
	if(UL.length > 0)
	{
		sousMenu = UL[0].style;	 
		if(sousMenu.display == 'none' || sousMenu.display == '')
		{
			sousMenu.display = 'block';
			if(document.all)
			{
				for(var i=0;i<SELECT.length;i++)
				{
					SELECT[i].style.display = 'none';
				}
			}
		}
		else
		{
			sousMenu.display = 'none';
			if(document.all)
			{
				for(var i=0;i<SELECT.length;i++)
				{
					SELECT[i].style.display = 'block';
				}
			}
		}
	}
}

function popupcentree(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+","+options);
}