/*
 *
 *  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);
 };