Passing the form Object as a Parameter

   

<html> 

<head> 
<title>Beatle Picker</title> 
<script type="text/javascript"> 
function processData(form) { 
    for (var i = 0; i < form.Beatles.length; i++) { 
        if (form.Beatles[i].checked) { 
            break; 
        } 
    } 
    var chosenBeatle = form.Beatles[i].value; 
    var chosenSong = form.song.value; 
    alert(chosenSong + " " + chosenBeatle ); 
} 


function checkSong(songTitle) { 
    var enteredSong = songTitle.value; 
    alert(enteredSong); 
} 
</script> 


</head> 
<body> 


<form name="Abbey Road"> 
Choose your favorite Beatle: 
<input type="radio" name="Beatles" id="Beatles1" value="John Lennon" checked="true" />John 
<input type="radio" name="Beatles" id="Beatles2" value="Paul McCartney" />Paul 
<input type="radio" name="Beatles" id="Beatles3" value="George Harrison" />George 
<input type="radio" name="Beatles" id="Beatles4" value="Ringo Starr" />Ringo 
<p>Enter the name of your favorite Beatles song:<br /> 
<input type="text" name="song" id="song" value="value" onchange="checkSong(this)" /></p> 
<p><input type="button" name="process" id="process" value="Process" onclick="processData(this.form)" /></p> 
</form> 
</body> 
</html>

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Passing the form Object as a Parameter : Form Demo « Form Control « JavaScript DHTML

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