var params = ""; function addparam (name, val) { if (params.length > 0) { params += "&"; } params += name + "=" + encodeURIComponent (val); } addparam ("[%command%]", "true"); addparam ("title", document.title); addparam ("description", window.getSelection ().toString ()); addparam ("link", window.location.href); var callUrl = "[%app%]?" + params; console.log (callUrl); window.open(callUrl, %27_blank%27);