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<div id="div1">
<select>
<option value="1" >1</option>
<option value="2" selected="selected" >2</option>
<option value="3" >3</option>
</select>
</div>
<div id="div2">
</div>
<input id="btn1" value="btn" onclick="copySelect" />
function copySelect()
{
var template=$("#div1").find("select").clone
template.find("option").removeAttr("selected");
template.find("option[value='3']").attr("selected","true");
$("#div2").html(template.html);
}