输入单选按钮未执行所需的选择

Question

面临选择时输入单选按钮未执行选择的问题 就像下面的代码始终执行发票一，但不是我想要的新单选按钮，一旦选择了输入单选按钮，则应执行所需的输出

任何触发单选按钮不起作用的原因

像新的应该默认选择，如果用户 select 发票一则应执行发票代码

<div class="common-box">
    <div class="common-box-left">
    </div>
    <div class="common-box-right" style="margin:7px 0 0 0;"> <span>
      <input name="selection" type="radio" value="New" checked="checked" onclick="Test(this);"/>
      </span><span><font color=blue>Invoice Price</font></span> <span>
      <input name="selection" type="radio" value="invoice" checked="checked" onclick="Test(this);"/>
      </span><span><font color=red>Exshowroom Price</font></span> <span>
  </div>
  <!--new-box start-->
  

    <div id="new">  
      <!--AJAX Uses Start-->
      
      <div class="common-box">
        <div class="common-box-left">Make*</div>
        <div class="common-box-right">
          <select name="make" class="list-box-big" id="make"  lang="MUST" title="Make" style="width:200px; height:25px;"  onchange="showModel(this.value)">
            <option value="" selected="selected" style="padding-left:10px;"> Select Make</option>
            <?php echo model_drop_down();?> 
          </select>
        </div>
      </div>
      <!--box start-->
      <div class="common-box">
        <div class="common-box-left">Model*</div>
        <div class="common-box-right">
          <div id="txtHint">
            <select name="model"  class="list-box-big"  id="model"  lang="MUST" title="Model" style="width:200px; height:25px;">
              <option value="" selected="selected" style="padding-left:10px;"> Select Model</option>
            </select>
          </div>
        </div>
      </div>
      <!--box end-->
      <!--box start-->
      <div class="common-box">
        <div class="common-box-left">Variant*</div>
        <div class="common-box-right">
          <div id="txtHintVariant">
            <select name="variant"  class="list-box-big"  id="variant"  lang="MUST" title="Variant" style="width:200px; height:25px;">
              <option value="" selected="selected" style="padding-left:10px;"> Select Variant</option>
            </select>
            </select>
          </div>
        </div>
      </div>

      <div id="txtVariantDetails">
      
    <div class="common-box">
          <div class="common-box-left text-hide-show-color"></div>
          <div class="common-box-right">
            <img src="images/calculate.png" alt="Calculate Road Tax" />
          </div>
        </div>
      </div>
       
      </div>

  <!--invoice-box start-->
    <div id="invoice">
      <!--AJAX Uses Start-->
      
 <!--AJAX Uses Start-->
      
      <div class="common-box">
        <div class="common-box-left">Make*</div>
        <div class="common-box-right">
          <select name="make" class="list-box-big" id="make"  lang="MUST" title="Make" style="width:200px; height:25px;"  onchange="showModel(this.value)">
            <option value="" selected="selected" style="padding-left:10px;"> Select Make</option>
            <?php echo model_drop_down();?> 
          </select>
        </div>
      </div>
      <!--box start-->
      <div class="common-box">
        <div class="common-box-left">Model*</div>
        <div class="common-box-right">
          <div id="txtHint">
            <select name="model"  class="list-box-big"  id="model"  lang="MUST" title="Model" style="width:200px; height:25px;">
              <option value="" selected="selected" style="padding-left:10px;"> Select Model</option>
            </select>
          </div>
        </div>
      </div>
      <!--box end-->
      <!--box start-->
      <div class="common-box">
        <div class="common-box-left">Variant*</div>
        <div class="common-box-right">
          <div id="txtHintVariant">
            <select name="variant"  class="list-box-big"  id="variant"  lang="MUST" title="Variant" style="width:200px; height:25px;">
              <option value="" selected="selected" style="padding-left:10px;"> Select Variant</option>
            </select>
            </select>
          </div>
        </div>
      </div>    

<div id="txtVariantinvoice">
      
    <div class="common-box">
          <div class="common-box-left text-hide-show-color"></div>
          <div class="common-box-right">
            <img src="images/calculate.png" alt="Calculate Road Tax" />
          </div>
        </div>
      </div>
</div>

    </div>