function logError(ex, stack) {
    if (ex == null) return; if (logErrorUrl == null) { alert('logErrorUrl must be defined.'); return; }
    var url = ex.fileName != null ? ex.fileName : document.location; if (stack == null && ex.stack != null) stack = ex.stack; var out = ex.message != null ? ex.name + ": " + ex.message : ex; out += ": at document path '" + url + "'."; if (stack != null) out += "\n  at " + stack.join("\n  at "); $.ajax({ type: 'POST', url: logErrorUrl, data: { message: out} });
}
Function.prototype.trace = function () {
    var trace = []; var current = this; while (current) { trace.push(current.signature()); current = current.caller; }
    return trace;
}
Function.prototype.signature = function () {
    var signature = { name: this.getName(), params: [], toString: function () { var params = this.params.length > 0 ? "'" + this.params.join("', '") + "'" : ""; return this.name + "(" + params + ")" } }; if (this.arguments) {
        for (var x = 0; x < this.arguments.length; x++)
            signature.params.push(this.arguments[x]);
    }
    return signature;
}
Function.prototype.getName = function () {
    if (this.name)
        return this.name; var definition = this.toString().split("\n")[0]; var exp = /^function ([^\s(]+).+/; if (exp.test(definition))
        return definition.split("\n")[0].replace(exp, "$1") || "anonymous"; return "anonymous";
}
window.onerror = function (msg, url, line) { logError(msg, arguments.callee.trace()); }