なんじゃこりゃ

formの子要素を取得しようとして、ちと記述ミスをしたんだが

var f = document.forms;
var str = '';
for (var i = 0; i < f.length; i ++) {
	for (var s in f(i).item()) str += s + '\n';
}
clipboardData.setData('text', str);

↑こんな感じに書いたら、クリップボードの内容にこんなものが↓
language scrollHeight isTextEdit currentStyle document onmouseup oncontextmenu isMultiLine clientHeight onrowexit onbeforepaste onactivate scrollLeft lang onmousemove onmove onselectstart parentTextEdit oncontrolselect canHaveHTML onkeypress oncut onrowenter onmousedown onpaste className id onreadystatechange onbeforedeactivate hideFocus dir isContentEditable onkeydown clientWidth onlosecapture parentElement ondrag ondragstart oncellchange recordNumber onfilterchange onrowsinserted ondatasetcomplete onmousewheel ondragenter onblur onresizeend onerrorupdate onbeforecopy ondblclick scopeName onkeyup onresizestart onmouseover onmouseleave outerText innerText onmoveend tagName title offsetWidth onresize contentEditable runtimeStyle filters ondrop onpage onrowsdelete tagUrn offsetLeft clientTop style onfocusout clientLeft ondatasetchanged canHaveChildren ondeactivate isDisabled onpropertychange ondragover onhelp ondragend onbeforeeditfocus disabled onfocus behaviorUrns accessKey onscroll onbeforeactivate onbeforecut readyState all sourceIndex onclick scrollTop oncopy onfocusin tabIndex onbeforeupdate outerHTML innerHTML ondataavailable offsetHeight onmovestart onmouseout scrollWidth offsetTop onmouseenter onlayoutcomplete offsetParent onafterupdate ondragleave children start readOnly firstChild type height alt form onerror hspace maxLength loop onselect lastChild nodeName nodeType width dynsrc attributes childNodes src dataFld previousSibling ownerDocument parentNode checked onabort accept nodeValue onchange dataFormatAs defaultChecked vrml dataSrc indeterminate onload align useMap lowsrc complete nextSibling vspace size value border status name language scrollHeight isTextEdit currentStyle document onmouseup oncontextmenu isMultiLine clientHeight onrowexit onbeforepaste onactivate scrollLeft lang onmousemove onmove onselectstart parentTextEdit oncontrolselect canHaveHTML onkeypress oncut onrowenter onmousedown onpaste className id onreadystatechange onbeforedeactivate hideFocus dir isContentEditable onkeydown clientWidth onlosecapture parentElement ondrag ondragstart oncellchange recordNumber onfilterchange onrowsinserted ondatasetcomplete onmousewheel ondragenter onblur onresizeend onerrorupdate onbeforecopy ondblclick scopeName onkeyup onresizestart onmouseover onmouseleave outerText innerText onmoveend tagName title offsetWidth onresize contentEditable runtimeStyle filters ondrop onpage onrowsdelete tagUrn offsetLeft clientTop style onfocusout clientLeft ondatasetchanged canHaveChildren ondeactivate isDisabled onpropertychange ondragover onhelp ondragend onbeforeeditfocus disabled onfocus behaviorUrns accessKey onscroll onbeforeactivate onbeforecut readyState all sourceIndex onclick scrollTop oncopy onfocusin tabIndex onbeforeupdate outerHTML innerHTML ondataavailable offsetHeight onmovestart onmouseout scrollWidth offsetTop onmouseenter onlayoutcomplete offsetParent onafterupdate ondragleave children start readOnly firstChild type height alt form onerror hspace maxLength loop onselect lastChild nodeName nodeType width dynsrc attributes childNodes src dataFld previousSibling ownerDocument parentNode checked onabort accept nodeValue onchange dataFormatAs defaultChecked vrml dataSrc indeterminate onload align useMap lowsrc complete nextSibling vspace size value border status name
メソッドだかプロパティだかしらんが使ってないものがズラリと、なんじゃこりゃ？

追記

上記の時のbody内は

<form><input type=radio></form>
<form><input type=radio></form>

こんな感じだったので、よく見るとクリップボードにコピーされたものは同じ内容が2回繰り返されていた。

追記

初めて聞いたものが沢山あるが、その中で面白そうだったのが

ondrag      //ドラッグしている間に発生させるイベント？
ondragstart //ドラッグを開始した時に発生させるイベント？
ondragend   //ドラッグを終了した時に発生させるイベント？

てな感じだった。んーー、ミスはしてみるもんだな。