windows.open 以post的方式传递参数

今天看到有篇文章寫到 windows.open 可以post方式傳遞參數，就趕緊照作看看，結果是可行的，
感謝撰寫這篇文章的作者~

/**
* window.open with post method
*/
function openWindowWithPost(url, name, keys, values) {
   var newWindow = window.open(url, name);
   if (!newWindow){
       return false;
   }

   var html = "";
   html += "<html><head></head><body><form id='formid' method='post' action='"   + url + "'>";
   if (keys && values && (keys.length == values.length)){
       for ( var i = 0; i < keys.length; i++){
           html += "<input type='hidden' name='" + keys[i] + "' value='" + values[i] + "'/>";
       }
   }
   html += "</form><script type='text/javascript'>document.getElementById("formid").submit()</script></body></html>";
   newWindow.document.write(html);
   return newWindow;
}