JQ判断按钮,复选框是否选中

var oRdoValue=$("#Radio1").is (":checked")?"男":"女"; //获取单选框按钮值
             var oChkValue=$("#Checkbox1").is (":checked")?"已婚":"未婚";//获取复选框按钮值      

性别：<input id="Radio1" name="rdoSex" type="radio" value="男" />男
              <input id="Radio2" name="rdoSex" type="radio" value="女" />女<br />
        婚否：<input id="Checkbox1" type="checkbox" />      

<td align="center" valign="middle">
                            <input type="checkbox" id="selall" onclick="doCheckClick()"/>全选
                        </td>
 

                                <input name="simUnitCodeList" type="checkbox" value='EA04' 
                                 />&#20013;&#36135;&#33322;
                                
                            
                                <input name="simUnitCodeList" type="checkbox" value='EA08' 
                                 />&#23665;&#19996;
                                
                            
                                <input name="simUnitCodeList" type="checkbox" value='EA06' 
                                 />&#27743;&#35199;
                                
                            
                                <input name="simUnitCodeList" type="checkbox" value='EA16' 
                                 />&#22235;&#24029;
                                
                            
                                <input name="simUnitCodeList" type="checkbox" value='EA17' 
                                 />&#19978;&#33322;
                                
                            
                                <input name="simUnitCodeList" type="checkbox" value='EA12' 
                                 />&#35199;&#21271;      

function doCheckClick(){
            $('input[name="simUnitCodeList"]').attr("checked", $("#selall").is (":checked"));
        }