var shortcutListener = { listen: true, shortcut: null, combination: '', lastKeypress: 0, clearTimeout: 2000, keys: { KEY_BACKSPACE: 8, KEY_TAB: 9, KEY_ENTER: 13, KEY_SHIFT: 16, KEY_CTRL: 17, KEY_ALT: 18, KEY_ESC: 27, KEY_SPACE: 32, KEY_LEFT: 37, KEY_UP: 38, KEY_RIGHT: 39, KEY_DOWN: 40, KEY_DELETE: 46, KEY_HOME: 36, KEY_END: 35, KEY_PAGEUP: 33, KEY_PAGEDOWN: 34 }, init: function() { if (!window.SHORTCUTS) return false; this.createStatusArea(); this.setObserver(); }, isInputTarget: function(e) {
    var target = e.target || e.srcElement; if (target && target.nodeName) { var targetNodeName = target.nodeName.toLowerCase(); if (targetNodeName == "textarea" || targetNodeName == "select" || (targetNodeName == "input" && target.type && (target.type.toLowerCase() == "text" || target.type.toLowerCase() == "password"))) { return true; } }
    return false;
}, stopEvent: function(event) { if (event.preventDefault) { event.preventDefault(); event.stopPropagation(); } else { event.returnValue = false; event.cancelBubble = true; } }, createStatusArea: function() { var area = document.createElement('div'); area.setAttribute('id', 'shortcut_status'); area.style.display = 'none'; document.body.appendChild(area); }, showStatus: function() { document.getElementById('shortcut_status').style.display = ''; }, hideStatus: function() { document.getElementById('shortcut_status').style.display = 'none'; }, showCombination: function() { var bar = document.getElementById('shortcut_status'); bar.innerHTML = this.combination; this.showStatus(); }, setObserver: function() {
    var name = 'keypress'; if (navigator.appVersion.match(/Konqueror|Safari|KHTML/) || document.detachEvent) { name = 'keydown'; }
    if (document.addEventListener) { document.addEventListener(name, function(e) { shortcutListener.keyCollector(e) }, false); } else if (document.attachEvent) { document.attachEvent('on' + name, function(e) { shortcutListener.keyCollector(e) }); } 
}, keyCollector: function(e) {
    if (!window.SHORTCUTS) return false; if (!shortcutListener.listen) return false; if (e.altKey || e.ctrlKey || e.metaKey) return false; var keyCode = e.keyCode; for (var key in this.keys) { if (e.keyCode == this.keys[key]) return false; }
    if (navigator.userAgent.match(/Gecko/)) { if (e.keyCode >= 112 && e.keyCode <= 123) return false; }
    if (this.isInputTarget(e)) return false; var code = e.which ? e.which : e.keyCode
    var letter = String.fromCharCode(code).toLowerCase(); if (e.shiftKey) letter = letter.toUpperCase(); if (shortcutListener.process(letter)) shortcutListener.stopEvent(e);
}, process: function(letter) {
    if (!window.SHORTCUTS) return false; if (!shortcutListener.listen) return false; if (!shortcutListener.shortcut) { shortcutListener.shortcut = SHORTCUTS; }
    if (!shortcutListener.shortcut[letter]) return false
    if (typeof (shortcutListener.shortcut[letter]) == "function") { shortcutListener.shortcut[letter](); shortcutListener.clearCombination(); } else { shortcutListener.shortcut = shortcutListener.shortcut[letter]; shortcutListener.combination = shortcutListener.combination + letter; if (shortcutListener.combination.length > 0) { shortcutListener.showCombination(); var d = new Date; shortcutListener.lastKeypress = d.getTime(); setTimeout("shortcutListener.clearCombinationOnTimeout()", shortcutListener.clearTimeout); }; }
    return true;
}, clearCombination: function() { shortcutListener.shortcut = null; shortcutListener.combination = ''; this.hideStatus(); }, clearCombinationOnTimeout: function() { var d = new Date; if ((d.getTime() - shortcutListener.lastKeypress) >= (shortcutListener.clearTimeout - 100)) { shortcutListener.clearCombination(); } } 
}