$(document).ready( function(){
	$("div#campaignMain ul li").hide();
	$("div#campaignMain ul li:first").show();
	$("div#campaignMain ul li:last").addClass("lastCampaign");
	setTimeout("changeGallery()", 20000);
});

function changeGallery(){
	var $cl = $("div#campaignMain ul li:visible");
		if($cl.is(".lastCampaign") == true ){
			$cl.fadeOut("slow");
			$("div#campaignMain ul li:first").show();			
		} else{
			$cl.fadeOut("slow");
			$cl.next().fadeIn("slow");
		}
	setTimeout("changeGallery()", 20000);
}

function showGallery(num){
	var cl = $("div#campaignMain ul li:eq("+ num +")");
	if(cl.is(":hidden") == true){
		$("div#campaignMain ul li").fadeOut("slow");
		$("div#campaignMain ul li:eq("+ num +")").fadeIn("slow");
	}
}