redline/src/js/prefix.js

Customizable html gauge

/*!
 * Browswer CSS prefix detection snippet by David Walsh
 * http://davidwalsh.name/vendor-prefix
 */

var vendorPrefix = (function () {
    var styles = window.getComputedStyle(document.documentElement, ''),
        pre = (Array.prototype.slice
            .call(styles)
            .join('') 
            .match(/-(moz|webkit|ms)-/) || (styles.OLink === '' && ['', 'o'])
        )[1],
        dom = ('WebKit|Moz|MS|O').match(new RegExp('(' + pre + ')', 'i'))[1];
    return {
        dom: dom,
        lowercase: pre,
        css: '-' + pre + '-',
        js: pre[0].toUpperCase() + pre.substr(1)
    };
})();