简单实用的Radio check
采集日期：2008-4-21作者：ukiss(注：本数据由系统自动采集，内容与BHCODE无关)
}else{ //only one radio if("undefined" == obj.length || null == obj.length){ if(obj.checked == true){ alert("this one is checked");<input type="radio" name="chk" value="1">111111 <input type="radio" name="chk" value="2">222222 <input type="radio" name="chk" value="3">333333 <input type="radio" name="chk" value="4">444444