地区选择器

<%@ taglib uri="/WEB-INF/tree.tld" prefix="tree" %>

<input name="user.areaid"  type="hidden" id="areaid" />
<select name="c1" id="c1" tabindex="2">
</select>
<select name="c2" id="c2" tabindex="3">
</select>
<select name="c3" id="c3" tabindex="4">
</select>
<tree:select selid="c1,c2,c3" catid="areaid" name="area">
</tree:select>