sharepoint ms-dlgContent resize in javascript

[출처] http://chadschroeder.blogspot.kr/2012/10/sharepoint-2010-easy-dynamic-resize-of.html

function AutosizeDialog() {
    //resize dialog if we are in one
    var dlg = typeof(SP.UI.ModalDialog.get_childDialog) == "function" ? SP.UI.ModalDialog.get_childDialog() : null;
    if (dlg != null) {
        dlg.autoSize();
        var dlgWin = $(".ms-dlgContent", window.parent.document);
        dlgWin.css({ top: ($(window.top).height() / 2 - dlgWin.height() / 2) + "px", left: $(window.top).width() / 2 - dlgWin.width() / 2 });
    }
}