function AfficheCalqueBlock(calque,type){
	if (type==1){
		eval("document.getElementById('"+calque+"').style.display = 'block';");  
		document.getElementById("page").className="opacity20";
	} else { 
		eval("document.getElementById('"+calque+"').style.display = 'none';");
		document.getElementById("page").className="opacity100";
	}
}