Javascript function post to URL

post-to-url.js

/**
* This function makes a post to a given url with the given parameters
* The form is created on the fly and also the input elements
* @path the URL path
* @params the URL query parameters
*/
function postToUrl(path, params) {
    var form = document.createElement("form");
    form.setAttribute("method", 'post');
    form.setAttribute("action", path);

    for(var key in params) {
        if(params.hasOwnProperty(key)) {
            var hiddenField = document.createElement("input");
            hiddenField.setAttribute("type", "hidden");
            hiddenField.setAttribute("name", key);
            hiddenField.setAttribute("value", params[key]);

            form.appendChild(hiddenField);
         }
    }

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