bouton radio sans formulaire

Code:

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<!DOCTYPE html>
<html lang="fr">
<head>
	<meta charset="UTF-8" />
	<script>
 
	function testerRadio( elt ){
	  allelt=elt.getElementsByTagName('input')
	  var i=-1
	  radio=new Array()
	  while(allelt[++i]){
	  if (allelt[i].type=='radio'){radio.push(allelt[i]) }
	  }
		for( var i=0 ; i<radio.length ; i++ ){
			 if ( radio[i].checked ){
				document.getElementById("cible").firstChild.nodeValue = radio[i].value;
			 }
		}
  }
 
	</script>
</head>
 
<body>
	<p id="cible">null</p>
 
  <p onClick="testerRadio(this)">
    <label>
      <input type="radio" name="RG" value="1">
		b1</label>
 
   <label>
    <input type="radio" name="RG" value="2" checked="checked">
    b2</label>
 
  </p>
</body>
</html>

Mais y'a plus simple ..

Code:

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<!DOCTYPE html>
<html lang="fr">
<head>
	<meta charset="UTF-8" />
	<script>
 
	function testerRadio( val ){
			document.getElementById("cible").firstChild.nodeValue = val;
  }
 
	</script>
</head>
 
<body>
	<p id="cible">null</p>
 
  <p >
    <label>
      <input type="radio" name="RG" value="1" onClick="testerRadio(this.value)">
		b1</label>
 
   <label>
    <input type="radio" name="RG" value="2" checked="checked" onClick="testerRadio(this.value)">
    b2</label>
 
  </p>
</body>
</html>