(function() {

    var window = this, undefined, jsx = window.jsx;

    jsx.Process = function(action, options) {

        this.action = action;

        this.refresh = 0;

        this._intervalID;

        

        this._execList = [];

        this._currentAction;

        this._test;

        this._execIndex = 0;

        

        this._sleepStartTime = 0;

        this._sleepTime = 0;

    };

    window.$Process = function(action) {

    	return new jsx.Process(action);

    };

    jsx.Process.prototype.run = function() {

        var self = this;

        setTimeout(function() {

            self._execIndex = 0;

            /*self._execList = [];*/

            if (typeof self.action === "function") {

            	self.action.call(self);

            }

            executeAction(self);

        }, 1);

    };

    jsx.Process.prototype.sleep = function(action, millis) {

        this._execList.push({action:action, sleep:millis});

        return this;

    };

    jsx.Process.prototype.wake = function() {

        clearTimeout(this._intervalID);

        executeAction(this);

    };

    jsx.Process.prototype.yield = function(action) {

        return this.sleep(action, 1);

    };

    jsx.Process.prototype.while = function(test, action) {

        this._execList.push({action:action, test:test, sleep:1});

    	return this;

    };

    function executeAction(self) 

    {

        var action, actionObject;

        if (self._currentAction) {

            self._currentAction.call(self);

            if (!self._test) {

            	self._currentAction = null;

            } else {

				if (self._test()) {

					executeAction(self);

				} else {

					self._test = null;

					self._currentAction = null;

				}



            }

        }

        if (!self._test) {

			if (!self._execList.length <= 0) {

				actionObject = self._execList.splice(0,1)[0];

				self._currentAction = actionObject.action;

				

				if (actionObject.test) {

					self._test = actionObject.test;

					self._intervalID = setTimeout(function() {

						if (self._test()) {

							self._currentAction.call(self);

							executeAction(self);

						} else {

							self._test = null;

							self._currentAction = null;

						}

					}, actionObject.sleep);

				} else {

					self._intervalID = setTimeout(function() {

						self._currentAction.call(self);

						self._currentAction = null;

						executeAction(self);

					}, actionObject.sleep);

				}

			}

		}

    }

})();