YUI.add('yui-throttle', function (Y, NAME) {

/**

Throttles a call to a method based on the time between calls. This method is attached

to the `Y` object and is <a href="../classes/YUI.html#method_throttle">documented there</a>.

    var fn = Y.throttle(function() {

        counter++;

    });

    for (i; i< 35000; i++) {

        out++;

        fn();

    }

@module yui

@submodule yui-throttle

*/

/*! Based on work by Simon Willison: http://gist.github.com/292562 */

/**

 * Throttles a call to a method based on the time between calls.

 * @method throttle

 * @for YUI

 * @param fn {function} The function call to throttle.

 * @param ms {Number} The number of milliseconds to throttle the method call.

 * Can set globally with Y.config.throttleTime or by call. Passing a -1 will

 * disable the throttle. Defaults to 150.

 * @return {function} Returns a wrapped function that calls fn throttled.

 * @since 3.1.0

 */

Y.throttle = function(fn, ms) {

    ms = (ms) ? ms : (Y.config.throttleTime || 150);

    if (ms === -1) {

        return function() {

            fn.apply(this, arguments);

        };

    }

    var last = Y.Lang.now();

    return function() {

        var now = Y.Lang.now();

        if (now - last > ms) {

            last = now;

            fn.apply(this, arguments);

        }

    };

};

}, '@VERSION@', {"requires": ["yui-base"]});