X=0;
Y=0;

window.onresize=check_size;


function getsize()
{
	Y = document.body.scrollWidth;
}

function check_size()
{
	menu1.style.display='none';
	menu3.style.display='none';
	Y = document.body.scrollWidth;
	if(Y<760)
	{
		window.resizeTo(780,650);
	}
}

function check_bloc_size()
{
	var e =	document.getElementById('bloc');
	if(navigator.appName=='Netscape')
		e.style.width='730px';
	if(navigator.appName=='Microsoft Internet Explorer')
		e.style.width='750px';
}

function montre(id) 
{
		var d = document.getElementById(id);
		for (var i = 1; i<=4; i++) 
		if (document.getElementById('menu'+i)) {document.getElementById('menu'+i).style.display='none'; } 
		if (d) 
		{
		

			val_y = (Y/2)+110;
			val_y2 = (Y/2)+187;
		
			//Detection du navigateur
			//if(navigator.appName=='Netscape')
			//{
				if(d.id=='menu1')
					d.style.left = val_y+'px';
				if(d.id=='menu3')
					d.style.left = val_y2+'px';
					
				d.style.display='block';
			//}
			//if(navigator.appName=='Microsoft Internet Explorer')
		} 
			
}
			
function cache(id)
{
		var d = document.getElementById(id);
		if(d) {d.style.display='none';}
}