radio切换，点击方法onclick

<label><input name="Status1" type="radio" value="first" checked="checked" onclick="firstfactorChange()" />篮球</label>

<label><input name="Status1" type="radio" value="factor" onclick="firstfactorChange()" />游泳</label> 

onclick="firstfactorChange()"   方法记得加()