Jquery Smart Poller with Stop Support

jQuerySmartPoller.js

/*
 * a smart poller for jquery.
 *    (by github)
 *
 * simple example:
 *
 *   $.smartPoller(function(retry) {
 *     $.getJSON(url, function(data) {
 *       if (data) {
 *         doSomething(data)
 *       } else {
 *         retry()
 *       }
 *     })
 *   })
 *
 *   With Timer Support 
 *   var timer = { id : 0 } 
 *   $.smartPoller(function(retry) {
 *     $.getJSON(url, function(data) {
 *       if (data) {
 *         doSomething(data)
 *       } else {
 *         retry()
 *       }
 *     })
 *   } , timer)
 *  Now anytime later u can cancell this smartpoller by doing 
 *  clearTimeout (timer.id) 
 *
 *
 * The $.smartPoller function accepts a starting
 * interval in ms but defaults to 1000:
 *
 *   $.smartPoller(2000, function(retry) {  
 *
 */

;(function($) {
  $.smartPoller = function(wait, pollerFunc, pollerID) {
    if ($.isFunction(wait)) {
      pollerID = pollerFunc
      pollerFunc = wait
      wait = 1000
    }

    if(pollerID == null ){
       var pollerID = { id : null }
    }
 
    (function startPoller() {
      pollerID.id = setTimeout(function() {
        pollerFunc.call(this, startPoller)
      }, wait)
      wait = wait * 1.5
    })()


  }
})(jQuery);