//Fonctions de gestion de la Greybox
function greyBoxShow(page){
	var navigatorVersion = Prototype.Browser.IE6=Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5))==6;
	if(!$('vbox_overlay')){
		$('footer').insert({after:'<div id="vbox_overlay"></div>'});
		if(navigatorVersion){
			var totalHeight = $('header').getHeight()+$('page').getHeight()+$('footer').getHeight();
			$('vbox_overlay').setStyle({'height':totalHeight+'px'});
		}
	}
	if(!$('vbox_greyBox')){
		$('vbox_overlay').insert({after:'</div><div id="vbox_greyBox"><div class="content" id="greyBoxContent"></div>'});
	}
	
	if(navigatorVersion){
		$$('select').each(function(el){$(el).setStyle({'visibility':'hidden'});});
	}
	$('vbox_overlay').setOpacity(0);
	$('vbox_overlay').setStyle({'display':'block'});
	$('header').scrollTo();
	$('vbox_overlay').fade({
		duration: 0.5,
		from: 0,
		to: 0.75,
		afterFinish: function(){
			$('vbox_greyBox').setStyle({'display':'block'});
			$('greyBoxContent').innerHTML = '<object type="application/x-shockwave-flash" data="'+page+'" width="819" height="564"><param name="movie" value="'+page+'"><param name="wmode" value="transparent"><embed src="'+page+'" width="819" height="564"></embed></object>';
		}
	});
		
}
function greyBoxHide(){
	var navigatorVersion = Prototype.Browser.IE6=Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5))==6;
	if(navigatorVersion){
		$('vbox_overlay').setStyle({'display':'none'});
		$('vbox_greyBox').setStyle({'display':'none'});
		$$('select').each(function(el){$(el).setStyle({'visibility':'visible'});});
	}
	else{
		$('vbox_greyBox').fade({
			duration: 0.5,
			from: 1,
			to: 0,
			afterFinish: function(){
				$('vbox_overlay').fade({
					duration: 0.3,
					from: 0.75,
					to: 0
				});
			}
		});
	}
}