Check if a style property is supported.

styleSupported.js

var styleSupported = (function () {
    var supported = [];

    var check = function (property) {
      var body = document.body || document.documentElement;
      var style = body.style;

      // check for standard
      if (typeof style[property] == 'string') { return true; }

      // check for vendor specific
      var vendors = ['Moz', 'webkit', 'Webkit', 'Khtml', 'O', 'ms'];
      property = property.charAt(0).toUpperCase() + property.substr(1);

      for (var i = 0; i < vendors.length; i++) {
        var vendorProperty = vendors[i];
        if (typeof style[vendorProperty] == 'string') { return true; }
      }

      return false;
    };

    return function (property) {
      if (supported[property] === undefined) {
        supported[property] = check(property);
      }
      return supported[property];
    };
  })();