//獲取單選按鈕的值function check_radio(){alert("a");//var Select=document.getElementById("Select1");var str=new String();var chkObjs = document.getElementsByName("radio");var hidden=document.getElementById("Hidden1");for(var i=0;i<chkObjs.length;i++){if(chkObjs[i].checked==true){if(chkObjs[i].value="其他"){ alert(chkObjs[i].value); str=document.getElementById('Select1').options[document.getElementById('Select1').selectedIndex].text;}else{ str=chkObjs[i].value;}}                }if(str.length > 0) {  hidden.value=str;                  }alert(str)alert("dsadssa");}總是無法獲取單選按鈕的值，是怎么回事？謝謝幫我看下，