Js dynamically generates Html elements to implement Post operations (createElement) and jscreateelement

Js dynamically generates Html elements to implement Post operations (createElement) and jscreateelement

Sometimes, you need to Post data to another page, then you need to build a Form

<form id="postform" name="postform" method="post"><input name="msg" value=""/></form>

Copy codeThe Code is as follows:
Document. write ("<form ..."
// Document. write ("<iframe src = \" about: blank \ "name = \" hiddenFrame \ "id = \" hiddenFrame \ "width = \" 0 \ "height = \" 0 \ "frameborder = \" 0 \ "> </iframe> ");

Submitting with the following js does not work, because the form hitting the page is not an object, but a string

// TheForm. action = "http://msg.baihe.com/tortoise/pages/tortoise/sm_gb2312.jsp? ReturnURL = "+ strReturnURL; // document. getElementById (" Pathid "). value =" 3070 "; // document. getElementById (" Title "). value =" Hello! "; // Document. getElementById ("Content "). value = "I have set you to focus on it. Let's talk about it :)"; // document. getElementById ("CloseWindow "). value = "1 ";

Therefore, you need to dynamically create a form object by using the following method:

Var form_feedback = document. createElement ("form"); document. body. appendChild (form_feedback); var I = document. createElement ("input"); I. type = "hidden"; I. name = "Title"; I. value = "Hello! "; Form_feedback.appendChild (I); var j = document. createElement ("input"); j. type = "hidden"; j. name = "Content"; j. value = "I have set you to focus on it. Let's talk about it :)"; form_feedback.appendChild (j); var hiddenIframe = document. createElement ("iframe"); hiddenIframe. src = "about: blank"; hiddenIframe. name = "hiddenFrame"; hiddenIframe. id = "hiddenFrame"; hiddenIframe. width = "0"; hiddenIframe. height = "0"; hiddenIframe. frameborder = "0"; form_limit Dback. appendChild (hiddenIframe); form_feedback.action = "http://msg.baihe.com/tortoise/pages/tortoise/sm_gb2312.jsp? ReturnURL = "; form_feedback.target =" hiddenFrame "; form_feedback.method =" post "; form_feedback.submit ();