Simple Javascript function to connect to Weinre server

weinre.js

var startWeinre = function() {
        var setServer = localStorage['weinre'] || "";
        var server = prompt("Weinre Server:", setServer);
        if (!server)
                return;
        localStorage['weinre'] = server;
        var script=document.createElement('script');
        script.src = "http://" + server + "/target/target-script.js";
        document.getElementsByTagName("head")[0].appendChild(script);
}