1 <!DOCTYPE html> 2 <html> 3 <head> 4 <script language="javascript" defer="defer"> 5 //document.getElementById("submitBtn")["onclick"]=function () 6 function test(){ 7 var tag=false; 8 for(i=0;i<document.form1.radioGroup.length;i++) 9 { 10 if(form1.radioGroup[i].checked) 11 { 12 alert(form1.radioGroup[i].value); 13 //tag=true; 14 return false; 15 } 16 else 17 { 18 alert("please check one radio"); 19 //i=document.form1.radioGroup.length; 20 return false; 21 } 22 23 } 24 } 25 26 //if (tag) { 27 // alert("succusefully!"); 28 29 // } 30 //else 31 //{ 32 // alert("please choosee...."); 33 //} 34 //} 35 </script> 36 </head> 37 <body> 38 <form name="form1"> 39 <input type="radio" name="radioGroup" value="1"/> 40 <input type="radio" name="radioGroup" value="2"/> 41 <input type="radio" name="radioGroup" value="3"/> 42 <input type="radio" name="radioGroup" value="4"/> 43 <input type="radio" name="radioGroup" value="5"/> 44 <input type="radio" name="radioGroup" value="6"/> 45 <input name="按钮" type="button" id="submitBtn" onclick="test()" value="button"/> 46 </form> 47 </body> 48 49 </html>
原文：http://www.cnblogs.com/tyen0921/p/3715954.html
