hoge.js

var x = document.createElement('script');
x.src='http://gist.github.com/raw/2040/ae6c51aa5fb11eeab8e4a970102077333f5a3d06/dollarX.js';
document.body.appendChild(x);
$X('//div[@class="gs"]', document.getElementById('canvas_frame')).forEach(
    function(e){
        if(!/88\.198\.36\.73/.exec(e.innerHTML))
            return;
        e.style.display="none";
});