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// attach a handler to a particular event on an element
// in a browser-independent way
function registerEventHandler (element, event, handler) {
if (element.attachEvent) {
// MS registration model
element.attachEvent('on' + event, handler);
} else if (element.addEventListener) {
// NN (W4C) regisration model
element.addEventListener(event, handler, false);
} else {
// old regisration model as fall-back
element[event] = handler;
}
}
// get a delegate that refers to an instance method
function getInstanceDelegate (obj, methodName) {
return( function(e) {
e = e || window.event;
return obj[methodName](e);
} );
}
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