// really simple IE6 compatible post function

function PostToEndpoint(url, params) {
    var form = document.createElement("form");
    form.method = "POST";
    form.action = url;

    for (var key in params) {
        if (params.hasOwnProperty(key)) {
            var input = document.createElement("input");
            input.type = "hidden";
            input.name = key;
            input.value = params[key];
            form.appendChild(input);
        }
    }

    document.body.appendChild(form);
    form.submit();
}