// event.js
// written by Dean Edwards, 2005
// with input from Tino Zijdel, Matthias Miller, Diego Perini
// http://deanedwards.me.uk/weblog/2005/10/add-event/
function addEvent(element, type, handler) {
        if (element.addEventListener) {
                element.addEventListener(type, handler, false);
        } else {
                if (!handler.$$guid) handler.$$guid = addEvent.guid++;
                if (!element.events) element.events = {};
                var handlers = element.events[type];
                if (!handlers) {
                        handlers = element.events[type] = {};
                        if (element["on" + type]) {
                                handlers[0] = element["on" + type];
                        }
                }
                handlers[handler.$$guid] = handler;
                element["on" + type] = handleEvent;
        }
};
addEvent.guid = 1;

function removeEvent(element, type, handler) {
        if (element.removeEventListener) {
                element.removeEventListener(type, handler, false);
        } else {
                if (element.events && element.events[type]) {
                        delete element.events[type][handler.$$guid];
                }
        }
};
function handleEvent(event) {
        var returnValue = true;
        event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event);
        var handlers = this.events[event.type];
        for (var i in handlers) {
                this.$$handleEvent = handlers[i];
                if (this.$$handleEvent(event) === false) {
                        returnValue = false;
                }
        }
        return returnValue;
};

function fixEvent(event) {
        event.preventDefault = fixEvent.preventDefault;
        event.stopPropagation = fixEvent.stopPropagation;
        return event;
};
fixEvent.preventDefault = function() {
        this.returnValue = false;
};
fixEvent.stopPropagation = function() {
        this.cancelBubble = true;
};


// domReady, as per John Resig's `Pro Javascript Techniques` <http://ejohn.org>
function domReady(f) {
  if(domReady.done) return f();
  if(domReady.timer) {
    domReady.ready.push(f);
  } else {
    addEvent(window, "load", isDOMReady);
    domReady.ready = [f];
    domReady.timer = setInterval(isDOMReady, 13);
  }
}
function isDOMReady() {
  if(domReady.done) return false;
  if(document && document.getElementsByTagName && document.body) {
    clearInterval(domReady.timer);
    domReady.timer = null;
    for(var i=0; i < domReady.ready.length; i++)
      domReady.ready[i]();
    domReady.ready = null;
    domReady.done = true;
  }
}