URLから特定のパラメータの値をとりだす ref: http://qiita.com/items/b4b0f361863c6d578ea6

file0.txt

slicePalamValue = function(url, key){
    return url.split(key+"=")[1].split("&")[0];
}

var url = http://aaaaaaaaa.com/code=ABCDEFG
console.log(slicePalamValue(url,"code")); //ABCDEFG