How To Open Ifram When I Do Post To Form ?

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HTML

jQuery

hello Until now i opened pop up window after i do post requset from from :

function OpenWindowWithPost(url, windowoption, name, params) {

                    var form = document.createElement("form");
                    form.setAttribute("method", "post");
                    form.setAttribute("action", url);
                    form.setAttribute("target", name);
                    for (var i in params) {
                        if (params.hasOwnProperty(i)) {
                            var input = document.createElement('input');
                            input.type = 'hidden';
                            input.name = i;
                            input.value = params[i];
                            form.appendChild(input);
                        }
                    }
                    document.body.appendChild(form);
                    //note I am using a post.htm page since I did not want to make double request to the page

var hDipositWin = window.open(url, name, windowoption);
                    form.submit();
                    document.body.removeChild(form);

and it work well , now i wont do the same action in iframe
how i do it ?
i tray :

$('#myIframeContiner').append("<iframe src='" + url + "' width='80%'></iframe>");

but it not posted i think how to do this ?