window.Leonhardt = (function(window,doc,undefined){
    
    var version = '1.0',
    
    ret = {},

    enableHTML5 = true,
    
    docElement = doc.documentElement,

    mod = 'leonhardt.test',
    m = doc.createElement( mod ),
    m_style = m.style,

    
    video = 'video',
    audio = 'audio',
	
    canPlayType = 'canPlayType',
        
    // IE7 gets mad if you name a local variable `toString`
    tostring = Object.prototype.toString,
    
    // list of property values to set for css tests. see ticket #21
    prefixes = ' -o- -moz- -ms- -webkit- -khtml- '.split(' '),

    tests = {},
    inputs = {},
    attrs = {},
    
    classes = [],
    
    /**
      * isEventSupported determines if a given element supports the given event
      * function from http://yura.thinkweb2.com/isEventSupported/
      */
    isEventSupported = (function(){
  
        var TAGNAMES = {
          'select':'input','change':'input',
          'submit':'form','reset':'form',
          'error':'img','load':'img','abort':'img'
        }, 
        cache = { };
        
        function isEventSupported(eventName, element) {
            var canCache = (arguments.length == 1);
            
            // only return cached result when no element is given
            if (canCache && cache[eventName]) {
                return cache[eventName];
            }
            
            element = element || document.createElement(TAGNAMES[eventName] || 'div');
            eventName = 'on' + eventName;
            
            // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize"
            // `in` "catches" those
            var isSupported = (eventName in element);
            
            if (!isSupported && element.setAttribute) {
                element.setAttribute(eventName, 'return;');
                isSupported = typeof element[eventName] == 'function';
            }
            
            element = null;
            return canCache ? (cache[eventName] = isSupported) : isSupported;
        }
        
        return isEventSupported;
    })();    
    
    
    var _hasOwnProperty = ({}).hasOwnProperty, hasOwnProperty;
    if (typeof _hasOwnProperty !== 'undefined' && typeof _hasOwnProperty.call !== 'undefined') {
      hasOwnProperty = function (object, property) {
        return _hasOwnProperty.call(object, property);
      };
    }
    else {
      hasOwnProperty = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
        return ((property in object) && typeof object.constructor.prototype[property] === 'undefined');
      };
    }
	
	function set_css( str ) {
        m_style.cssText = str;
    }
	
    /**
     * Tests
     */   
    
    tests[video] = function() {
        var elem = doc.createElement(video),
            bool = !!elem[canPlayType];
        
        if (bool){ 
            bool      = new Boolean(bool);
            bool.ogg  = elem[canPlayType]('video/ogg; codecs="theora"');
            bool.h264 = elem[canPlayType]('video/mp4; codecs="avc1.42E01E"');
            bool.webm = elem[canPlayType]('video/webm; codecs="vp8, vorbis"');
        }
        return bool;
    };
    
    tests[audio] = function() {
        var elem = doc.createElement(audio),
            bool = !!elem[canPlayType];
        
        if (bool){  
            bool      = new Boolean(bool);  
            bool.ogg  = elem[canPlayType]('audio/ogg; codecs="vorbis"');
            bool.mp3  = elem[canPlayType]('audio/mpeg;');
            
            // mimetypes accepted: 
            //   https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
            //   http://bit.ly/iphoneoscodecs
            bool.wav  = elem[canPlayType]('audio/wav; codecs="1"');
            bool.m4a  = elem[canPlayType]('audio/x-m4a;') || elem[canPlayType]('audio/aac;');
        }
        return bool;
    };

    // end of test definitions
    

   
	for ( var feature in tests ) {
        if ( hasOwnProperty( tests, feature ) ) {
            // run the test, throw the return value into the Modernizr,
            //   then based on that boolean, define an appropriate className
            //   and push it into an array of classes we'll join later.
            classes.push( ( ( ret[ feature.toLowerCase() ] = tests[ feature ]() ) ?  '' : 'no-' ) + feature.toLowerCase() );
        }
    }


    /**
     * Addtest allows the user to define their own feature tests
     * the result will be added onto the Modernizr object,
     * as well as an appropriate className set on the html element
     * 
     * @param feature - String naming the feature
     * @param test - Function returning true if feature is supported, false if not
     */
    ret.addTest = function (feature, test) {
      feature = feature.toLowerCase();
      
      if (ret[ feature ]) {
        return; // quit if you're trying to overwrite an existing test
      } 
      test = !!(test());
      docElement.className += ' ' + (test ? '' : 'no-') + feature; 
      ret[ feature ] = test;
      return ret; // allow chaining.
    };

    /**
     * Reset m.style.cssText to nothing to reduce memory footprint.
     */
    set_css( '' );
    m = f = null;

    // Enable HTML 5 elements for styling in IE. 
    // fyi: jscript version does not reflect trident version
    //      therefore ie9 in ie7 mode will still have a jScript v.9
    if ( enableHTML5 && (function(){ var elem = doc.createElement("div");
                                      elem.innerHTML = "<elem></elem>";
                                      return elem.childNodes.length !== 1; })()) {
        // iepp v1.5.1 MIT @jon_neal  http://code.google.com/p/ie-print-protector/
        (function(p,e){function q(a,b){if(g[a])g[a].styleSheet.cssText+=b;else{var c=r[l],d=e[j]("style");d.media=a;c.insertBefore(d,c[l]);g[a]=d;q(a,b)}}function s(a,b){for(var c=new RegExp("\\b("+m+")\\b(?!.*[;}])","gi"),d=function(k){return".iepp_"+k},h=-1;++h<a.length;){b=a[h].media||b;s(a[h].imports,b);q(b,a[h].cssText.replace(c,d))}}function t(){for(var a,b=e.getElementsByTagName("*"),c,d,h=new RegExp("^"+m+"$","i"),k=-1;++k<b.length;)if((a=b[k])&&(d=a.nodeName.match(h))){c=new RegExp("^\\s*<"+d+"(.*)\\/"+d+">\\s*$","i");i.innerHTML=a.outerHTML.replace(/\r|\n/g," ").replace(c,a.currentStyle.display=="block"?"<div$1/div>":"<span$1/span>");c=i.childNodes[0];c.className+=" iepp_"+d;c=f[f.length]=[a,c];a.parentNode.replaceChild(c[1],c[0])}s(e.styleSheets,"all")}function u(){for(var a=-1,b;++a<f.length;)f[a][1].parentNode.replaceChild(f[a][0],f[a][1]);for(b in g)r[l].removeChild(g[b]);g={};f=[]}for(var r=e.documentElement,i=e.createDocumentFragment(),g={},m="abbr|article|aside|audio|canvas|command|datalist|details|figure|figcaption|footer|header|hgroup|keygen|mark|meter|nav|output|progress|section|source|summary|time|video",n=m.split("|"),f=[],o=-1,l="firstChild",j="createElement";++o<n.length;){e[j](n[o]);i[j](n[o])}i=i.appendChild(e[j]("div"));p.attachEvent("onbeforeprint",t);p.attachEvent("onafterprint",u)})(this,doc);
    }

    // Assign private properties to the return object with prefix
    ret._enableHTML5     = enableHTML5;
    ret._version         = version;

    // Remove "no-js" class from <html> element, if it exists:
    docElement.className=docElement.className.replace(/\bno-js\b/,'') + ' js';

    // Add the new classes to the <html> element.
    docElement.className += ' ' + classes.join( ' ' );
    
    return ret;
	
	

})(this,this.document);