var ie = /MSIE/.test(navigator.userAgent);

function hover(obj)
	{
	if(ie)
		{
		UL = obj.getElementsByTagName('ul');
		if(UL.length > 0)
			{
				sousMenu = UL[0].style;
				if(sousMenu.display == 'none' || sousMenu.display == '')
					{
						sousMenu.display = 'block';
					}
				else
					{
						sousMenu.display = 'none';
					}
			}
		}
	}

var dropdownrech = null;
var dropdownrech2 = null;

function setHover()
	{
	LI = document.getElementById('menu').getElementsByTagName('li');
	for(i=0; i < LI.length; i++)
		{
			LI[i].onmouseover = function()
				{
					hover(this);
					if (dropdownrech)
					document.getElementById(dropdownrech).style.visibility = "hidden";
					if (dropdownrech2)
					document.getElementById(dropdownrech2).style.visibility = "hidden";
				}
			LI[i].onmouseout = function()
				{
					hover(this);
					if (dropdownrech)
					document.getElementById(dropdownrech).style.visibility = "visible";
					if (dropdownrech2)
					document.getElementById(dropdownrech2).style.visibility = "visible";
				}
		}
	}