window.console shim

myConsole

myConsole = {};
    (function fixConsole(fakeConsole) {

        fakeConsole.debug = true;
        fakeConsole.breakOnErrors = true;

        var methods = ['log', 'warn', 'error', 'info', 'dir'];

        if (!window.console) return;

        function intercept(method) {

            var realConsole = window.console[method];

            fakeConsole[method] = function () {
                if (!fakeConsole.debug) return;
                // call the real window.console
                if (realConsole.apply) {
                    // Do this for "normal" browsers
                    realConsole.apply(window.console, arguments);
                } else {
                    // Do this for IE
                    var message = Array.prototype.slice.apply(arguments).join(' ');
                    realConsole(message);
                }

                if (method === "error" && fakeConsole.breakOnErrors) {
                    if (confirm("Error caught. Do you want to stop javaScript execution?")) {
                        throw ('execution stopped');
                    }
                }

            }
        }

        for (var i = 0, len = methods.length; i < len; i++)
            intercept(methods[i]);

    })(myConsole)