<html onclick="alert('Event is now at the HTML element.')"> <head> <title>Event Bubbles</title> <script type="text/javascript"> function init() { window.onclick = winEvent document.onclick = docEvent; document.body.onclick = docBodEvent; } function winEvent() { alert("window object level."); } function docEvent() { alert("document object level."); } function docBodEvent() { alert("BODY element."); } </script> </head> <body onload="init()"> <form onclick="alert('FORM')"> <input type="button" value="Button 'main1'" name="main1" onclick="alert('Button: ' + this.name)" /> </form> </body> </html>