Add event handler to form : General Event « Event « JavaScript DHTML

Add event handler to form

   

<html> 

<head> 
<title>W3C DOM Event Propagation</title> 
<script type="text/javascript"> 
function init() { 

    document.forms[0].addEventListener("click", formBubbleEvent, false); 
} 

function formBubbleEvent(evt) { 
    alert("FORM only on BUBBLE."); 
} 
function getPhase(evt) { 
    switch (evt.eventPhase) { 
        case 1: 
        return "CAPTURING"; 
            break; 
        case 2: 
        return "AT TARGET"; 
            break; 
        case 3: 
        return "BUBBLING"; 
            break; 
        default: 
        return ""; 
    } 
} 
</script> 
</head> 
<body onload="init()"> 
<form> 
<input type="button" value="Button 'main1'" name="main1" onclick="alert('button (' + getPhase(event) + ').')" /> 
</form> 
</body> 
</html>

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