/*
 *
 * jQuery Timer plugin v0.1
 *    Matt Schmidt [http://www.mattptr.net]
 *
 * Licensed under the BSD License:
 *    http://mattptr.net/license/license.txt
 *
 */
 
 jQuery.timer = function (interval, callback)
 {
 /**
  *
  * timer() provides a cleaner way to handle intervals  
  *
  *   @usage
  * $.timer(interval, callback);
  *
  *
  * @example
  * $.timer(1000, function (timer) {
  *   alert("hello");
  *   timer.stop();
  * });
  * @desc Show an alert box after 1 second and stop
  * 
  * @example
  * var second = false;
  *   $.timer(1000, function (timer) {
  *      if (!second) {
  *         alert('First time!');
  *         second = true;
  *         timer.reset(3000);
  *      }
  *      else {
  *         alert('Second time');
  *         timer.stop();
  *      }
  *   });
  * @desc Show an alert box after 1 second and show another after 3 seconds
  *
  * 
  */

   var interval = interval || 100;

   if (!callback)
      return false;
   
   _timer = function (interval, callback) {
      this.stop = function () {
         clearInterval(self.id);
      };
      
      this.internalCallback = function () {
         callback(self);
      };
      
      this.reset = function (val) {
         if (self.id)
            clearInterval(self.id);
         
         var val = val || 100;
         this.id = setInterval(this.internalCallback, val);
      };
      
      this.interval = interval;
      this.id = setInterval(this.internalCallback, this.interval);
      
      var self = this;
   };
   
   return new _timer(interval, callback);
 };