function slideSwitch() {
	var $active = $('#mainvisual li.active');
	var $next =  ($active.next().length ? $active.next() : $('#mainvisual li:first'));
	$active.fadeOut('500',function(){$active.removeClass("active")});
	$next.fadeIn('500',function(){$next.addClass("active")});
}

$(function() {
rotateSwitch = function(){
	play=setInterval( "slideSwitch()", 4000 );
};

rotateSwitch();

$("#mvThumbnail a").hover(function() {
	$('#mainvisual li.active').hide().removeClass('active');
	var num=($(this).attr("rel"));
	$($('#mainvisual li')[num]).addClass('active').show();
	clearInterval(play);
	}, function() {
	rotateSwitch();
});

});