var timer = 4000;        // 変化する時間（ミリ秒で指定。1秒なら1000）
var fade  = 1500;

//------------------------------------------------------
var images;

$(function() {
	setInterval(changeEyeCatch, timer);
});

function changeEyeCatch()
{
	var last    = $('#eyecatch_area img:last').attr('src');
	var current = $('#eyecatch_area img:visible').attr('src'); 

	if (current == last) {
		var next = $('#eyecatch_area img:first');
	} else {
		var next = $('#eyecatch_area img:visible').next();
	}

	$('#eyecatch_area img:visible').fadeOut(fade);
	next.fadeIn(fade);
}