Jetpack Kiosk Rotator

/*
@author: Andy Edmonds
@url: http://www.uxagile.com
@update: http://uxagile.com/kiosk-tab-rotator-jetpack-for-firefox/
@title: Jetpack Kiosk Tab Rotator
@description: For you information radiator screens
@license: MPL
*/

// TODO
// Auto cancel when user interacts with page
// Provide ability to set delay
// Update state upon pause/resume in jetpack bar
// Latest developments at http://gist.github.com/169784
// Stable version http://gist.github.com/gists/257534

var tabDelaySeconds = 40;

var interval= false;
var curTab= 0;
var widgetHandle  = false;


jetpack.statusBar.append({
  html: "<span id='cycleStats'><img id='tabRotateLogo' src='data:image/png;base64,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' width='16' height='16' vspace='2'></span>",
  width: 16,

  onReady: function(widget){
    widgetHandle = widget; 
    $(widget).click(function(){
      cycleInit();
    });
  },
  
});

function cycleInit() {
  if(!interval) {
    jetpack.notifications.show( "Rotating tab to:" + this.curTab ); 
    interval = setInterval( cycle, 1000*tabDelaySeconds );
    //$("#cycleStatus", widgetHandle).html("CYCLING")
    var doc = jetpack.tabs.focused.contentDocument; 
    //doc.addEventListener("mousemove", cancelCycle)
  } else {
    jetpack.notifications.show( "Ending Tab Rotation"); 
	interval = clearInterval(interval);
    //console.log($(widgetHandle));
  }
}


function cycle(){
    var doc = jetpack.tabs.focused.contentDocument; 
    //doc.removeEventListener("mousemove", cancelCycle) 
    if(this.curTab<jetpack.tabs.length  ) {
		this.curTab++;
	} else {
		this.curTab = 0;
	}
    jetpack.notifications.show( "Rotating tab to:" + this.curTab ); 
    jetpack.tabs[curTab].focus();  
  };
  function cancelCycle () {
    interval = clearInterval(interval);
    var doc = jetpack.tabs.focused.contentDocument; 
    //doc.removeEventListener("mousemove", cancelCycle) 
  }