동적으로 form 태그 생성해서 post 전송하기
$('#btnsubmit').click( function() {
var $form = $('<form></form>');
$form.attr('action', 'default.aspx');
$form.attr('method', 'post');
$form.attr('target', 'iFrm');
$form.appendTo('body');
var idx = $('<input name="idx" type="hidden" value="">');
var page = $('<input name="page" type="hidden" value="">');
var keyfield = $('<input name="keyfield" type="hidden" value="">');
var keyword = $('<input name="keyword" type="hidden" value="">');
$form.append(idx).append(page).append(keyfield).append(keyword);
$form.submit();
});