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/**
* Generic function to add an event handler to any DOM element.
*
* $Horde: horde/js/addEvent.php,v 1.1.2.3 2007/01/02 13:55:04 jan Exp $
*
* Copyright 2005-2007 Chuck Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*/
/**
* Adds the given event to an element. If the element already has
* handlers for the event, the new event is appended.
*
* @param object element The element to add the event to.
* @param string event The name of the event.
* @param string|function function The javascript to execute.
*/
function addEvent(element, event, code)
{
if (!element) {
return false;
}
// Assign new anonymous function if we're passed a js string
// instead of a function reference.
if (typeof code == 'string') {
code = new Function(code);
}
if (element.addEventListener) {
element.addEventListener(event.replace(/on/, ''), code, false);
} else if (element.attachEvent) {
element.attachEvent(event, code);
} else if (element.onload != null) {
eval('var OldEvent = element.' + event);
newCode = Function(e)
{
oldEvent(e);
code();
};
eval('element.' + event + ' = newCode');
} else {
eval('element.' + event + ' = code');
}
return true;
}
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