Result

jQuery

//rel="external"のあるa要素
$("a[rel*='external']").each(function(){
    //a要素にtarget="_blank"の追加やtitle属性など変更を加える
    $(this).attr({
        target:"_blank",
        title: ($(this).attr("title")) ? "New window: " + $(this).attr("title") : "Open in new window"
    });
});

html

<a href="/" rel="external" title="kachibito">Go kachibito.net</a>

via

www.sohtanaka.com

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