html源码

<div class="form_row">  
 <label>底部打印模式:</label>  

 <input name="AdPrintMode" type="radio" value="1" οnclick="divClick();" />指定图片  

 <input name="AdPrintMode" type="radio" value="2" οnclick="divClick();"/>指定二维码+用户心情文字  
 <input name="AdPrintMode" type="radio" value="3" οnclick="divClick();"/>无广告   

 </div>  

       <div class="form_row" id="img1" >  
             <label>二维码图片:</label>  
              <img src="{$shows.AdQrCodeUrl}" width=80 id="AdQrCodeUrl_img">    
       </div>  

       <div class="form_row" id="img2">  
             <label>底部图片:</label>  
             <img src="{$shows.AdImgUrl}" width=300 id="AdImgUrl_img">             
     </div>

js代码

function divClick(){  

       var show="";  
       var apm = document.getElementsByName("AdPrintMode");  
       for(var i=0;i<apm.length;i++){  
       if(apm[i].checked)  
        show = apm[i].value;  
       }  

       switch (show){  
           case '1':  
               document.getElementById("img1").style.display="none";  
               document.getElementById("img2").style.display="block";  
               break;  
           case '2':  
               document.getElementById("img1").style.display="block";  
               document.getElementById("img2").style.display="none";  
               break;  
           case '3':  
               document.getElementById("img1").style.display="block";  
               document.getElementById("img2").style.display="block";  
               break;    
           default:  
               document.getElementById("img1").style.display="none";  
               document.getElementById("img2").style.display="none";  
               break;                                                                
       }  
} 

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