javascript:(
function() {
if(location.href.search(/[^0-9A-Z]([B0-9][0-9A-Z]{9})([^0-9A-Z]|$)/)!=-1){
var url='https://www.amazon.co.jp/dp/'+RegExp.$1+'?tag=yto-22';
window.open(
"https://twitter.com/intent/tweet?url=" + encodeURIComponent(url)
+ "&text=" + encodeURIComponent(document.title),
"_blank", "width=600,height=300");
}
}
)();