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// source: http://stackoverflow.com/questions/9638247/is-jquery-browser-deprecated
// Limit scope pollution from any deprecated API
(function() {

	var matched, browser;

// Use of jQuery.browser is frowned upon.
// More details: http://api.jquery.com/jQuery.browser
// jQuery.uaMatch maintained for back-compat
	jQuery.uaMatch = function( ua ) {
		ua = ua.toLowerCase();

		var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
			/(webkit)[ \/]([\w.]+)/.exec( ua ) ||
			/(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
			/(msie) ([\w.]+)/.exec( ua ) ||
			ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
			[];

		return {
			browser: match[ 1 ] || "",
			version: match[ 2 ] || "0"
		};
	};

	matched = jQuery.uaMatch( navigator.userAgent );
	browser = {};

	if ( matched.browser ) {
		browser[ matched.browser ] = true;
		browser.version = matched.version;
	}

// Chrome is Webkit, but Webkit is also Safari.
	if ( browser.chrome ) {
		browser.webkit = true;
	} else if ( browser.webkit ) {
		browser.safari = true;
	}

	jQuery.browser = browser;

	jQuery.sub = function() {
		function jQuerySub( selector, context ) {
			return new jQuerySub.fn.init( selector, context );
		}
		jQuery.extend( true, jQuerySub, this );
		jQuerySub.superclass = this;
		jQuerySub.fn = jQuerySub.prototype = this();
		jQuerySub.fn.constructor = jQuerySub;
		jQuerySub.sub = this.sub;
		jQuerySub.fn.init = function init( selector, context ) {
			if ( context && context instanceof jQuery && !(context instanceof jQuerySub) ) {
				context = jQuerySub( context );
			}

			return jQuery.fn.init.call( this, selector, context, rootjQuerySub );
		};
		jQuerySub.fn.init.prototype = jQuerySub.fn;
		var rootjQuerySub = jQuerySub(document);
		return jQuerySub;
	};

})();