function permutEtat(idDiv,idDiv2)
{	
	if(document.getElementById(idDiv).style.display == "none")
	{
		document.getElementById(idDiv).style.display = "block";
		document.getElementById(idDiv2).style.display = "none";
	}
	else
	{
		document.getElementById(idDiv).style.display = "none";
		document.getElementById(idDiv2).style.display = "block";
	}
}


function homeShowOverlayer(){

	var ovr = document.getElementById('home-overlayer');
	$('home-overlayer').setStyle({opacity: 0.0});

	sizes = getPageSize();
	left = parseInt((sizes[0] - 980) / 2) + 321;
	$('home-overlayer').style.left = left + 'px';
	
	$('home-overlayer').style.display = 'block';

	new Effect.Fade(ovr, {
		duration: 0.4,
		fps: 70,
		from: 0.0,
		to: 1
	});



}

function homeHideOverlayer(){
	var ovr = document.getElementById('home-overlayer');

	new Effect.Fade(ovr, {
		duration: 0.4,
		fps: 70,
		from: 1,
		to: 0.0
	});

	$('home-overlayer').style.display = 'block';

}