comment valider les boutons radio en javascript?

mon html code-comment valider les boutons radio en javascript?

<form method="post" name="editorform" id="editorform" onsubmit="return validate_editorform(this)" action="#"> 
     <ol><li> 
     <label for="qtitle"><b>Title</b></label> 
     <input id="qtitle" name="qtitle" class="text"></textarea> 
     </li><li> 
     <label for="tag"><b>Tag</b></label> 
      <table border="0"> 
       <tr> 
        <td><input type="radio" name="tag" value="art"/>Art & Living</td> 
        <td><input type="radio" name="tag" value="travel" class="rdbtn"/>Travel</td> 
        <td><input type="radio" name="tag" value="religion" class="rdbtn"/>religion</td> 
       </tr> 
.....

mon javascript-

function validate_editorform(editorform) 
{ 
    var qtitle = editorform.qtitle.value; 
    var tag = editorform.tag.value; 
    var question = editorform.question.value; 
    var nameRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/; 

    if(qtitle == "") { 
     inlineMsg('qtitle','You must enter a Question title.',5); 
     return false; 
    } 
    if(editorform.tag.checked == "") { 
     inlineMsg('tag','You must Tag your question.',5); 
     return false; 
    } 
    if(question == "") { 
     inlineMsg('question','You must enter a your Question.',5); 
     return false; 
    } 
}

Pour qtitle et la question JavaScript fonctionne bien, mais pour le bouton radio (tag) il n'est pas. Quelqu'un peut-il identifier le problème?

Source

2010-08-05 nectar

if(editorform.tag[0].checked == False... and so on for tag[1]...)

Source

2010-08-05 11:22:39 nectar

ya maintenant son travail bien ... merci – nectar

changement

if(editorform.tag.checked == "") {

if(tag == "") {

Source

2010-08-05 11:15:33

<html> 
    <head> 
    <title>Validating Radio Button</title> 
    <script> 
     select = "" 
     len = document.myform.radioname.length 

     for (i = 0; i <len; i++) { 
     if (document.myform.radioname[i].checked) { 
      select = document.myform.radioname[i].value 
     } 
     } 

     if (select == "") { 
     alert("No Option selected"); 
     return false; 
     } 
     else { 
     alert("option selected"); 
     return true; 
     } 
    </script> 
    </head> 
    <body> 
    <form name="myform" action="thankyou.html" onsubmit="return validateForm()" method="post">  
     Choose your favourite Car Brand 
     <input type="radio" name="radioname" value="maruti">Maruti<br> 
     <input type="radio" name="radioname" value="fiat">Fiat<br> 
     <input type="radio" name="radioname" value="BMW">BMW<br> 
     <input type="radio" name="radioname" value="jaguar">Jaguar<br> 
    </form> 
    </body> 
</html>

Source

2014-09-02 12:35:42 Omjjh

Pouvez-vous inclure une explication de ce que vous avez fait? – RevanProdigalKnight

comment valider les boutons radio en javascript?

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