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    };

    // webk.it/70117 is tracking a legit WebGL feature detect proposal

    // We do a soft detect which may false positive in order to avoid
    // an expensive context creation: bugzil.la/732441

    tests['webgl'] = function() {
        return !!window.WebGLRenderingContext;
    };

    /*
     * The Modernizr.touch test only indicates if the browser supports
     *    touch events, which does not necessarily reflect a touchscreen
     *    device, as evidenced by tablets running Windows 7 or, alas,
     *    the Palm Pre / WebOS (touch) phones.
     *
     * Additionally, Chrome (desktop) used to lie about its support on this,
     *    but that has since been rectified: crbug.com/36415
     *
     * We also test for Firefox 4 Multitouch Support.
     *
     * For more info, see: modernizr.github.com/Modernizr/touch.html
     */

    tests['touch'] = function() {
        var bool;

        if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
          bool = true;
        } else {
          injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''), function( node ) {
            bool = node.offsetTop === 9;
          });
        }

        return bool;
    };


    // geolocation is often considered a trivial feature detect...
    // Turns out, it's quite tricky to get right:
    //
    // Using !!navigator.geolocation does two things we don't want. It:
    //   1. Leaks memory in IE9: github.com/Modernizr/Modernizr/issues/513
    //   2. Disables page caching in WebKit: webk.it/43956
    //
    // Meanwhile, in Firefox < 8, an about:config setting could expose
    // a false positive that would throw an exception: bugzil.la/688158

    tests['geolocation'] = function() {
        return 'geolocation' in navigator;
    };


    tests['postmessage'] = function() {
      return !!window.postMessage;
    };


    // Chrome incognito mode used to throw an exception when using openDatabase
    // It doesn't anymore.
    tests['websqldatabase'] = function() {
      return !!window.openDatabase;
    };

    // Vendors had inconsistent prefixing with the experimental Indexed DB:
    // - Webkit's implementation is accessible through webkitIndexedDB
    // - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB
    // For speed, we don't test the legacy (and beta-only) indexedDB
    tests['indexedDB'] = function() {
      return !!testPropsAll("indexedDB", window);
    };

    // documentMode logic from YUI to filter out IE8 Compat Mode
    //   which false positives.
    tests['hashchange'] = function() {
      return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7);
    };

    // Per 1.6:
    // This used to be Modernizr.historymanagement but the longer
    // name has been deprecated in favor of a shorter and property-matching one.
    // The old API is still available in 1.6, but as of 2.0 will throw a warning,
    // and in the first release thereafter disappear entirely.
    tests['history'] = function() {
      return !!(window.history && history.pushState);
    };

    tests['draganddrop'] = function() {
        var div = document.createElement('div');
        return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div);
    };

    // FF3.6 was EOL'ed on 4/24/12, but the ESR version of FF10
    // will be supported until FF19 (2/12/13), at which time, ESR becomes FF17.
    // FF10 still uses prefixes, so check for it until then.
    // for more ESR info, see: mozilla.org/en-US/firefox/organizations/faq/
    tests['websockets'] = function() {
        return 'WebSocket' in window || 'MozWebSocket' in window;
    };


    // css-tricks.com/rgba-browser-support/
    tests['rgba'] = function() {
        // Set an rgba() color and check the returned value

        setCss('background-color:rgba(150,255,150,.5)');

        return contains(mStyle.backgroundColor, 'rgba');
    };

    tests['hsla'] = function() {
        // Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
        //   except IE9 who retains it as hsla

        setCss('background-color:hsla(120,40%,100%,.5)');

        return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla');
    };