JS日付コントロール

<script language="javascript" type="text/javascript" src="./js/DatePicker/WdatePicker.js"></script>

<input id="txtPublishfrom" type="text" readonly="readonly"/>
<img onclick="WdatePicker({el:$dp.$('txtPublishfrom')})" src="./js/DatePicker/skin/datePicker.gif" width="16" height="22" align="absmiddle"/>