Synnefo

    var form = document.createElement("form");

    form.setAttribute("method", "post");

    form.setAttribute("action", "/machines/console");

    form.setAttribute('target', '_blank'); 

    var params = {'host': host, 'port': port, 'password': password};

    for(var key in params) {

        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();