Send object to remote javascript file

You cannot pass variables in the same way as originally. What Yahoo does is, in the listbadge.js file, it loops through all the tags <script>

on the page until it finds the one that included it, and then parses the innerHTML as JSON.

Their source was a little confusing, but here's my best understanding of it.

var scripts = document.getElementsByTagName("SCRIPT");

for (var i = 0; i < scripts.length; i++) {
    var includeString = scripts[i].src;
    if (includeString.match("listbadge.js")) {
        if (scripts[i].innerHTML){
            var passedVariables = parseJson(scripts[i].innerHTML);
        }
        break;
    }
}