POPUP for Textarea

Is there any sample to provide editing of a TEXTAREA value, using popup version of THIS editor? for instance, for Richedit i have such code:

<script language="JavaScript">
function edit(obj) {
var edit={}
edit.src = obj.innerText;
edit.styledata = document.styleSheets;
result = window.showModalDialog("richedit/popup_editor.html", edit,"dialogWidth:800px;dialogHeight:600px;help:no;status:no;scroll:no;resizable:yes;")
if (result!=null) { obj.value = result; }
}
</script>

Thanks.