var KEY={BACKSPACE:8,TAB:9,ENTER:13,BREAK:19,CAPSLOCK:20,ESC:27,SPACE:32,PAGEUP:33,PAGEDOWN:34,END:35,HOME:36,LEFT:37,UP:38,RIGHT:39,DOWN:40,INSERT:45,DELETE:46,ZERO:48,ONE:49,TWO:50,THREE:51,FOUR:52,FIVE:53,SIX:54,SEVEN:55,EIGHT:56,NINE:57,UMLAUT:59,A:65,B:66,C:67,D:68,E:69,F:70,G:71,H:72,I:73,J:74,K:75,L:76,M:77,N:78,O:79,P:80,Q:81,R:82,S:83,T:84,U:85,V:86,W:87,X:88,Y:89,Z:90,NUMPAD0:96,NUMPAD1:97,NUMPAD2:98,NUMPAD3:99,NUMPAD4:100,NUMPAD5:101,NUMPAD6:102,NUMPAD7:103,NUMPAD8:104,NUMPAD9:105,MULTIPLY:106,ADD:107,SUBTRACT:109,DECIMAL:110,DIVIDE:111,F1:112,F2:113,F3:114,F4:115,F5:116,F6:117,F7:118,F8:119,F9:120,F10:121,F11:122,F12:123,NUMLOCK:144,SCROLL:145,UMLAUT_2:186,PLUS:187,COMMA:188,MINUS:189,PERIOD:190,APOSTROPHE:191,AE:192,ACCENT:219,HALF:220,AA:221,OE:222,ANGLE:226,CTRL:256,SHIFT:512,ALT:1024};var Keyboard=function(){var KEYMASK,KEYSHIFT,KEYCTRL,KEYALT,broken,safariTranslator,handlers,factory,lib;if(window.Prototype){lib={webkit:Prototype.Browser.WebKit,msie:Prototype.Browser.IE,stopEvent:Event.stop,onDomLoaded:document.observe.curry("dom:loaded"),eventTarget:Event.element,observe:Element.observe,each:function(enumerable,fn){enumerable.each(fn);},setStyle:Element.setStyle,identify:Element.identify};}else if(window.jQuery){lib={webkit:jQuery.browser.safari,msie:jQuery.browser.msie,stopEvent:function(event){event.preventDefault();event.stopPropagation();event.stopped=true;},onDomLoaded:jQuery(document).ready,eventTarget:function(event){return event.target;},observe:function(element,event,fn){if(typeof element==='string'){element='#'+element;}
jQuery(element).bind(event,fn);},each:function(enumerable,fn){jQuery.each(enumerable,function(index,val){fn(val,index);});},setStyle:function(element,style){if(typeof element==='string'){element='#'+element;}
return jQuery(element).css(style);},identify:function(element){if(typeof element==='string'){element=document.getElementById(element);}
var id=element.id,self=arguments.callee;if(id){return id;}
do{id='anonymous_element_'+(self.counter+=1);}while(document.getElementById(id));element.id=id;return id;}};lib.identify.counter=1;}
KEYMASK=255;KEYSHIFT=16;KEYCTRL=17;KEYALT=18;broken={};lib.each([{key:KEY.CTRL+KEY.TAB,name:"Ctrl+Tab",browsers:"Win-FF3, Win-IE7",does:"next tab"},{key:KEY.ALT+KEY.TAB,name:"Alt+Tab",browsers:"Win-all",does:"task switch"},{key:KEY.ALT+KEY.ENTER,name:"Alt+Enter",browsers:"Win-IE7",does:"full screen"},{key:KEY.BREAK,name:"Break",browsers:"Mac-all",does:"key doesn't exist on Mac"},{key:KEY.CTRL+KEY.BREAK,name:"Ctrl+Break",browsers:"Win-all, Mac-all",does:"nothing on Win, key doesn't exist on Mac"},{key:KEY.SHIFT+KEY.BREAK,name:"Shift+Break",browsers:"Mac-all",does:"key doesn't exist on Mac"},{key:KEY.ALT+KEY.BREAK,name:"Alt+Break",browsers:"Mac-all",does:"key doesn't exist on Mac"},{key:KEY.CAPSLOCK,name:"CapsLock",browsers:"all browsers"},{key:KEY.CTRL+KEY.CAPSLOCK,name:"Ctrl+CapsLock",browsers:"all browsers"},{key:KEY.SHIFT+KEY.CAPSLOCK,name:"Shift+CapsLock",browsers:"all browsers"},{key:KEY.ALT+KEY.CAPSLOCK,name:"Alt+CapsLock",browsers:"all browsers"},{key:KEY.CTRL+KEY.ESC,name:"Ctrl+Esc",browsers:"Win-all",does:"start menu"},{key:KEY.ALT+KEY.ESC,name:"Alt+Esc",browsers:"Win-all",does:"task switch"},{key:KEY.CTRL+KEY.SPACE,name:"Ctrl+Space",browsers:"Mac-all",does:"spotlight"},{key:KEY.ALT+KEY.SPACE,name:"Alt+Space",browsers:"Win-all",does:"system menu"},{key:KEY.CTRL+KEY.PAGEUP,name:"Ctrl+PAGEUP",browsers:"Win-FF3",does:"previous tab"},{key:KEY.CTRL+KEY.PAGEDOWN,name:"Ctrl+PAGEDOWN",browsers:"Win-FF3",does:"next tab"},{key:KEY.ALT+KEY.HOME,name:"Alt+Home",browsers:"Win-IE7",does:"home page"},{key:KEY.ALT+KEY.LEFT,name:"Alt+Left",browsers:"Win-Safari3",does:"history back"},{key:KEY.ALT+KEY.RIGHT,name:"Alt+Right",browsers:"Win-Safari3",does:"history forward"},{key:KEY.CTRL+KEY.ZERO,name:"Ctrl+0",browsers:"Win-IE7, Win-Safari3",does:"reset zoom"},{key:KEY.UMLAUT,name:"¨",browsers:"Mac-Safari3"},{key:KEY.CTRL+KEY.UMLAUT,name:"Ctrl+¨",browsers:"Mac-Safari3"},{key:KEY.SHIFT+KEY.UMLAUT,name:"Shift+¨",browsers:"Mac-Safari3"},{key:KEY.ALT+KEY.UMLAUT,name:"Alt+¨",browsers:"Mac-Safari3"},{key:KEY.ALT+KEY.A,name:"Alt+A",browsers:"Win-IE7",does:"address bar"},{key:KEY.ALT+KEY.B,name:"Alt+B",browsers:"Win-Safari3",does:"bookmarks"},{key:KEY.ALT+KEY.D,name:"Alt+D",browsers:"Win-IE7, Win-Safari3",does:"address bar"},{key:KEY.ALT+KEY.E,name:"Alt+E",browsers:"Win-Safari3",does:"edit menu"},{key:KEY.CTRL+KEY.F,name:"Ctrl+F",browsers:"Win-IE7, WIn-Safari3",does:"find"},{key:KEY.ALT+KEY.F,name:"Alt+F",browsers:"Win-Safari3",does:"file menu"},{key:KEY.ALT+KEY.H,name:"Alt+H",browsers:"Win-Safari3",does:"help menu"},{key:KEY.ALT+KEY.I,name:"Alt+I",browsers:"Win-Safari3",does:"history menu"},{key:KEY.CTRL+KEY.O,name:"Ctrl+O",browsers:"Win-IE7, Win-Safari3",does:"open"},{key:KEY.CTRL+KEY.P,name:"Ctrl+P",browsers:"Win-IE7, Win-Safari3",does:"print"},{key:KEY.ALT+KEY.V,name:"Alt+V",browsers:"Win-Safari3",does:"view menu"},{key:KEY.ALT+KEY.W,name:"Alt+W",browsers:"Win-Safari3",does:"window menu"},{key:KEY.SHIFT+KEY.NUMPAD0,name:"Shift+Pad0",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD1,name:"Shift+Pad1",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD2,name:"Shift+Pad2",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD3,name:"Shift+Pad3",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD4,name:"Shift+Pad4",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD5,name:"Shift+Pad5",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD6,name:"Shift+Pad6",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD7,name:"Shift+Pad7",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD8,name:"Shift+Pad8",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMPAD9,name:"Shift+Pad9",browsers:"all browsers"},{key:KEY.CTRL+KEY.ADD,name:"Ctrl+Pad+",browsers:"Win-IE7",does:"zoom"},{key:KEY.CTRL+KEY.SUBTRACT,name:"Ctrl+Pad-",browsers:"Win-IE7",does:"zoom"},{key:KEY.SHIFT+KEY.DECIMAL,name:"Shift+PadDecimal",browsers:"all browsers"},{key:KEY.F1,name:"F1",browsers:"Win-IE7",does:"help"},{key:KEY.CTRL+KEY.F1,name:"Ctrl+F1",browsers:"Win-IE7, Mac-Safari3",does:"help on Windows, nothing on Mac"},{key:KEY.SHIFT+KEY.F1,name:"Shift+F1",browsers:"Win-IE7",does:"help"},{key:KEY.CTRL+KEY.F3,name:"Ctrl+F3",browsers:"Mac-all",does:"finder"},{key:KEY.CTRL+KEY.F4,name:"Ctrl+F4",browsers:"Win-all",does:"close window"},{key:KEY.ALT+KEY.F4,name:"Alt+F4",browsers:"Win-all",does:"close browser"},{key:KEY.F5,name:"F5",browsers:"Win-Safari3",does:"reload"},{key:KEY.ALT+KEY.F6,name:"Alt+F6",browsers:"Win-IE7, Win-Safari3"},{key:KEY.CTRL+KEY.F8,name:"Ctrl+F8",browsers:"Mac-all",does:"time machine"},{key:KEY.F9,name:"F9",browsers:"Mac-all",does:"exposé"},{key:KEY.SHIFT+KEY.F9,name:"Shift+F9",browsers:"Mac-all",does:"exposé"},{key:KEY.F10,name:"F10",browsers:"Mac-all",does:"exposé"},{key:KEY.SHIFT+KEY.F10,name:"Shift+F10",browsers:"Win-Safari3, Mac-all",does:"context menu on Windows, exposé on Mac"},{key:KEY.F11,name:"F11",browsers:"Mac-all",does:"exposé"},{key:KEY.SHIFT+KEY.F11,name:"Shift+F11",browsers:"Mac-all",does:"exposé"},{key:KEY.F12,name:"F12",browsers:"Mac-all",does:"exposé"},{key:KEY.SHIFT+KEY.F12,name:"Shift+F12",browsers:"Mac-all",does:"exposé"},{key:KEY.NUMLOCK,name:"NumLock",browsers:"all browsers"},{key:KEY.CTRL+KEY.NUMLOCK,name:"Ctrl+NumLock",browsers:"all browsers"},{key:KEY.SHIFT+KEY.NUMLOCK,name:"Shift+NumLock",browsers:"all browsers"},{key:KEY.ALT+KEY.NUMLOCK,name:"Alt+NumLock",browsers:"all browsers"},{key:KEY.SCROLL,name:"ScrollLock",browsers:"all browsers"},{key:KEY.CTRL+KEY.SCROLL,name:"Ctrl+ScrollLock",browsers:"all browsers"},{key:KEY.SHIFT+KEY.SCROLL,name:"Shift+ScrollLock",browsers:"all browsers"},{key:KEY.ALT+KEY.SCROLL,name:"Alt+ScrollLock",browsers:"all browsers"},{key:KEY.PLUS,name:"+",browsers:"Win-FF2, Win-FF3"},{key:KEY.CTRL+KEY.PLUS,name:"Ctrl++",browsers:"Win-FF2, Win-FF3, Win-IE7, Win-Safari3",does:"zoom in FF2, IE7 and Safari 3"},{key:KEY.SHIFT+KEY.PLUS,name:"Shift++",browsers:"Win-FF2, Win-FF3"},{key:KEY.ALT+KEY.PLUS,name:"Alt++",browsers:"Win-FF2, Win-FF3"},{key:KEY.MINUS,name:"-",browsers:"Win-FF2, Win-FF3"},{key:KEY.CTRL+KEY.MINUS,name:"Ctrl+-",browsers:"Win-FF2, Win-FF3, Win-IE7, Win-Safari3",does:"zoom in IE7 and Safari 3"},{key:KEY.SHIFT+KEY.MINUS,name:"Shift+-",browsers:"Win-FF2, Win-FF3"},{key:KEY.ALT+KEY.MINUS,name:"Alt+-",browsers:"Win-FF2, Win-FF3"},{key:KEY.ALT+KEY.AE,name:"Alt+Æ",browsers:"Win-IE7"},{key:KEY.ACCENT,name:"´",browsers:"Mac-Safari3"},{key:KEY.CTRL+KEY.ACCENT,name:"Ctrl+´",browsers:"Mac-Safari3"},{key:KEY.SHIFT+KEY.ACCENT,name:"Shift+´",browsers:"Mac-Safari3"},{key:KEY.ALT+KEY.ACCENT,name:"Alt+´",browsers:"Mac-Safari3"},{key:KEY.HALF,name:"½",browsers:"Mac-Safari3"},{key:KEY.CTRL+KEY.HALF,name:"Ctrl+½",browsers:"Mac-Safari3"},{key:KEY.SHIFT+KEY.HALF,name:"Shift+½",browsers:"Mac-Safari3"},{key:KEY.ALT+KEY.HALF,name:"Alt+½",browsers:"Mac-Safari3"},{key:KEY.ALT,name:"Alt",browsers:"IE7",does:"activate menu"}],function(obj){var text=obj.name+' is unmappable in '+obj.browsers;if(obj.does){text+=' ('+obj.does+')';}
broken[obj.key]=text;});safariTranslator={"U+0022":KEY.TWO,"U+0026":KEY.SIX,"U+0027":KEY.APOSTROPHE,"U+0028":KEY.EIGHT,"U+0029":KEY.NINE,"U+002A":KEY.APOSTROPHE,"U+002F":KEY.SEVEN,"U+003A":KEY.PERIOD,"U+003B":KEY.COMMA,"U+003C":KEY.ANGLE,"U+003D":KEY.ZERO,"U+003E":KEY.ANGLE,"U+003F":KEY.PLUS,"U+00C5":KEY.AA,"U+00C6":KEY.AE,"U+00D8":KEY.OE,"U+00E5":KEY.AA,"U+00E6":KEY.AE,"U+00F8":KEY.OE,"U+20AC":KEY.FOUR};function isAccessKey(key,alt){return(alt&&((key>=KEY.ZERO&&key<=KEY.NINE)||(key>=KEY.A&&key<=KEY.Z)));}
function cancel(keys,event){var key,handler;if(lib.webkit&&event.keyIdentifier&&safariTranslator[event.keyIdentifier]){key=[safariTranslator[event.keyIdentifier],event.ctrlKey,event.shiftKey,event.altKey];}else{key=[event.keyCode,event.ctrlKey,event.shiftKey,event.altKey];}
handler=keys[key];if(handler){lib.stopEvent(event);if(lib.msie&&event.keyCode>=112&&event.keyCode<=123){event.keyCode=0;}
if(lib.msie&&isAccessKey(event.keyCode,event.altKey)){lib.setStyle('__altkeyhandler_'+event.keyCode,{left:(document.body.parentNode.scrollLeft||document.body.scrollLeft)+'px',top:(document.body.parentNode.scrollTop||document.body.scrollTop)+'px'});}}}
function monitor(keys,event){var key,handler;if(lib.webkit&&event.keyIdentifier&&safariTranslator[event.keyIdentifier]){key=[safariTranslator[event.keyIdentifier],event.ctrlKey,event.shiftKey,event.altKey];}else{key=[event.keyCode,event.ctrlKey,event.shiftKey,event.altKey];}
handler=keys[key];if(handler){switch(typeof handler){case'function':handler.call(lib.eventTarget(event),event);break;case'object':handler[1].call(handler[0],event);break;}
lib.stopEvent(event);}}
function makeHandler(element){var keys,handler,target;if(typeof element==='string'){element=document.getElementById(element);}
target=(element===document)?document.body:element;keys={};lib.observe(element,'keydown',function(event){cancel(keys,event);});lib.observe(element,'keyup',function(event){monitor(keys,event);});if(target.tabIndex===-1||!target.tabIndex){if(target.nodeName==="INPUT"){target.tabIndex=0;}else{target.tabIndex=-1;}}
handler={register:function(key,method,override){var keyCode=key&KEYMASK,ctrlKey=!!(key&KEY.CTRL),shiftKey=!!(key&KEY.SHIFT),altKey=!!(key&KEY.ALT),index=[keyCode,ctrlKey,shiftKey,altKey],target,div;override=override||false;if(broken[key]&&!override){alert(broken[key]+".\nThis key mapping has been ignored.\nIf you really want to map this key, set the override parameter to true.");return;}
if(keyCode===0){switch(key){case KEY.CTRL:index=[KEYCTRL,false,false,false];break;case KEY.SHIFT:index=[KEYSHIFT,false,false,false];break;case KEY.ALT:index=[KEYALT,false,false,false];break;}}
if(keys[index]){alert("Key "+index[0]+" (ctrl="+index[1]+", shift="+index[2]+", alt="+index[3]+") already mapped!");return;}else{keys[index]=method;if(index[0]===KEY.UMLAUT){keys[[KEY.UMLAUT_2,index[1],index[2],index[3]]]=method;}
if(lib.msie){target=(element===document)?document.body:element;if(isAccessKey(index[0],index[3])){div=document.createElement('div');div.id='__altkeyhandler_'+index[0];div.accessKey=String.fromCharCode(index[0]);div.tabIndex=-1;Element.setStyle(div,{position:'absolute',width:0,height:0,margin:0,padding:0,border:0});target.appendChild(div);}}}},list:function(){console.log(keys);}};return handler;}
handlers={};factory={handlerFor:function(element){var id;id=(element!==document)?lib.identify(element):element;if(!handlers[id]){handlers[id]=makeHandler(element);}
return handlers[id];},register:function(element,key,method,override){if(!!(document&&document.body)){var handler=this.handlerFor(element);handler.register(key,method,override);}else{document.observe("dom:loaded",function(){Keyboard.register(element,key,method,override);});}},registerGlobal:function(key,method,override){this.register(document,key,method,override);}};return factory;}();