jquery怎么根据后台传过来的值动态设置下拉框、单选框选中

$(function(){
varsex=$("#sex").val();
varmarriageStatus=$("#marriageStatus").val();
vareducation=$("#education").val();
if(!isnull(sex)){
$("input:radio[name='sex'][value="+sex+"]").attr('checked','true');
}
if(!isnull(marriageStatus)){
$("input:radio[name='marriageStatus'][value="+marriageStatus+"]").attr('checked','true');
}
if(!isnull(education)){
$("#education1option[value='"+education+"']").attr("selected",true);
}
});

<inputtype="hidden"id="sex"value="${serviceInfo.sex}"/>
<inputtype="radio"name="sex"value="0"checked="checked"/>男
<inputtype="radio"name="sex"value="1"/>女

<inputtype="hidden"id="marriageStatus"value="${serviceInfo.marriageStatus}"/>
<inputtype="radio"name="marriageStatus"value="0"checked="checked"/>是
<inputtype="radio"name="marriageStatus"value="1"/>否

<inputtype="hidden"id="education"value="${serviceInfo.education}"/>
<selectname="education"id="education1">
<optionvalue="硕士">硕士</option>
<optionvalue="本科">本科</option>
<optionvalue="大专">大专</option>
<optionvalue="其它">其它</option>
</select>