// JavaScript Document
function Swap(Id)
{
	for (i=1; i<Id; i++)
		document.getElementById("Evenement"+i).style.visibility = "hidden";
	
	document.getElementById("Evenement"+Id).style.visibility = "visible";
	
	for (i=Id+1; i<50; i++)
	{
		if ( document.getElementById("Evenement"+i) )
			document.getElementById("Evenement"+i).style.visibility = "hidden";
	}
	
	var IdPlus = Id+1;
	var IdMoins = Id-1;
	
	if ( !document.getElementById("Evenement"+IdPlus) )
		document.getElementById("FlecheDroite"+Id).style.visibility = "hidden";

	if ( !document.getElementById("Evenement"+IdMoins) )
		document.getElementById("FlecheGauche"+Id).style.visibility = "hidden";
}