村天來了

// Get dom element by id

function $(id){return document.getElementById(id);}

// Register event handlers

function addEvent(obj,evt,fn)

{

        if(obj.addEventListener)

                obj.addEventListener(evt,fn,false);

        else if(obj.attachEvent)

                obj.attachEvent('on'+evt,fn);

}

// Removing event handlers

function removeEvent(obj,evt,fn)

{

        if(obj.removeEventListener)

                obj.removeEventListener(evt,fn,false);

        else if(obj.detachEvent)

                obj.detachEvent('on'+evt,fn);

}

// Handle event

function handleEventSample(e)

{

        var evt = e || window.event;

        var evtTarget = evt.target || evt.srcElement;

        var posX = evt.pageX || evt.clientX;

        var posY = evt.pageY || evt.clientY;

        /* W3C L-0 M-1 R-2, IE  L-1 M-4 R-2 */

        var mouseKey = evt.button;

        var boardKey = evt.which || evt.keyCode;

        // Cancelling event propagation

        if(evt.stopPropagation)

                evt.stopPropagation();

        else

                evt.cancelBubble = true;

}