js配列メソッドの履歴
$($("p.description").get(0)).text($($("p.description").get(0)).text().split("、").filter(function(v) { return v.indexOf("img") < 0 }).map(function(v){ return v + "です" }).join("、"))
http://www.css-lecture.com/log/css3/css3-opacity-rgba.html