省市区联动控件

<input type="text" id="idOtcProvince" disabled="true" />
<input type="hidden" id="idOtcProvinceHide" value="110000" />
<input type="text" id="idOtcCity" disabled="true" />
<input type="hidden" id="idOtcCityHide" value="110100" />
<input type="text" id="idOtcArea" disabled="true" />
<input type="hidden" id="idOtcAreaHide"  value="110102" />
<input id="Button1" type="button" value="选择"  onclick='ShowCityDialog();'/>