<div id="form">
<input type="text" class="xField" value="" />
<input type="text" class="yField" value="" />
<input type="button" class="btn" value="입력" />
</div>
<div id="form">
<input type="text" class="xField" value="" />
<input type="text" class="yField" value="" />
<input type="button" class="btn" value="입력" />
</div>