function bannerslide(){
	function slide(path){
		$current = $('#banner li.on');
		var $move;
		if(path == 'previous'){
			$move = $current.prev().length > 0 ? $current.prev() : $('#banner li').last();
		}else{		
			$move = $current.next().length > 0 ? $current.next() : $('#banner li').first();
		}
		$move.addClass('on active').css('opacity','0').animate({opacity:1},function(){
			$(this).removeClass('active');
			$current.removeClass('on');			
		});
	};
	$('#banner-previous').bind('click',function(){
		if(!$('#banner li').is(':animated'))
		slide('previous');
		return false;
	});
	$('#banner-next').bind('click',function(){
		if(!$('#banner li').is(':animated'))
		slide();
		return false;
	});
}

$(function(){
	bannerslide();
})