document.getElementsByName 的一个例子

<P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp; </SPAN>1.装配修理电器或玩具。&nbsp; <INPUT  
              type=radio  value=y name=w1> 是&nbsp; <INPUT type=radio  
              value=n name=w1> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp;
              </SPAN>2.修理自行车。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
              <INPUT type=radio  value=y name=w2> 是&nbsp; <INPUT  
              type=radio value=n name=w2> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp;
              </SPAN>3.用木头做东西。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <INPUT  
              type=radio  value=y name=w3> 是&nbsp; <INPUT type=radio  
              value=n name=w3> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp;
              </SPAN>4.开汽车或摩托车。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <INPUT type=radio  
               value=y name=w4> 是&nbsp; <INPUT type=radio value=n  
              name=w4> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp;
              </SPAN>5.用机器做东西。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <INPUT  
              type=radio  value=y name=w5> 是&nbsp; <INPUT type=radio  
              value=n name=w5> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp; </SPAN>6.参加木工技术学习班。&nbsp; <INPUT  
              type=radio  value=y name=w6> 是&nbsp; <INPUT type=radio  
              value=n name=w6> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp; </SPAN>7.参加制图描图学习班。&nbsp; <INPUT  
              type=radio  value=y name=w7> 是&nbsp; <INPUT type=radio  
              value=n name=w7> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp;
              </SPAN>8.驾驶卡车或拖拉机。&nbsp;&nbsp;&nbsp; <INPUT type=radio   
              value=y name=w8> 是&nbsp; <INPUT type=radio value=n name=w8>  
              否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp; </SPAN>9.参加机械和电气学习。&nbsp; <INPUT  
              type=radio  value=y name=w9> 是&nbsp; <INPUT type=radio  
              value=n name=w9> 否</P> 
              <P class=MsoPlainText><SPAN
              style="mso-spacerun: yes">&nbsp;</SPAN>10.装配修理电器。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
              <INPUT type=radio  value=y name=w10> 是&nbsp; <INPUT  
              type=radio value=n name=w10> 否</P> 

//判断

function whriteAll()
 {
  //r型 i型 a型 s型 e型 c型;
 var r=0;
 var w=0;
 var a=0;
 var s=0;
 var e=0;
 var c=0;
 for(var i=1;i<=60;i++)
  {
  var pid =document.getElementsByName("w"+i);
  
   if(document.getElementsByName("w"+i).item(0).checked==true)
   {
    if(i<=10)
    {
     r++;
    }
    if(i<=20 && i>10)
    {
     w++;
    }
    if(i<=30 && i>20)
    {
     a++;
    }
    if(i<=40 && i>30)
    {
     s++;
    }
    if(i<=50 && i>40)
    {
     e++;
    }
    if(i<=60 && i>50)
    {
     c++;
    }
   }
   
  
   }
  
   alert("r型选中"+r+"");alert("w型选中"+w+"");alert("a型选中"+a+"");alert("s型选中"+s+"");alert("e型选中"+e+"");alert("c型选中"+c+"");
 }