// Copyright 2008 by Bontrager Connection, LLC - http://www.willmaster.com/
// Modifications Copyright 2008 by Julian Kalmar - http://www.thehappinessformula.com
// -- Customization Area -- //
var divID = "topbar";   // div's id
var divWidth = 105;     // div's width
var divBorderWidth = 0; // div's border width (0 if none)

// -- No other customization necessary -- //
var doingTimeout;
var scrolloffsetX = (navigator.userAgent.indexOf('MSIE') != -1 && navigator.userAgent.indexOf('Opera') == -1) ? 10 : 20;
var totop, nowtop, toleft, nowleft;
var pushtotop, pushnowtop, pushtoleft, pushnowleft;

var firsttime = 1;
var timeincrement=.01;   //time increment in seconds
var xdifference, ydifference, xinitial, yinitial;
var t=0;                 //time since clock started
var rightnow;            //current time in milliseconds
var timestart;           //motion start time: milliseconds
var timenow;             //current time:      milliseconds

function SlideTheMessage() {
 clearTimeout(doingTimeout);
 rightnow = new Date();
 timenow  = rightnow.getMilliseconds() + rightnow.getSeconds()*1000 + rightnow.getMinutes()*60000;

 if (firsttime==1) {
  GetCoordinates();
  xdifference    = toleft-nowleft; 
  ydifference    = totop-nowtop; 
  xinitial       = nowleft; 
  yinitial       = nowtop;
  timestart      = timenow;
  t              = 0;
  firsttime      = 0; }
 else {
  pushnowleft = nowleft;
  pushnowtop  = nowtop;
  pushtoleft  = toleft;
  pushtotop   = totop;
  GetCoordinates();

  if (totop!=pushtotop || toleft!=pushtoleft || nowtop!=pushnowtop || nowleft!=pushnowleft) {
   xdifference    = toleft-nowleft; 
   ydifference    = totop-nowtop; 
   xinitial       = nowleft; 
   yinitial       = nowtop;
   timestart      = timenow;
   t              = 0;
   firsttime      = 0; 
  }
 }

 t = (timenow - timestart)/1000;
 if ( (Math.abs(nowleft-toleft) + Math.abs(nowtop-totop )) <= 0 || t > 1) {
  firsttime = 1;
  t=1;
  nowleft = parseInt(xdifference*(-.5*t*t*t+1.5*t)+xinitial); //starting velocity=maximum, ending velocity=0
  nowtop  = parseInt(ydifference*(-.5*t*t*t+1.5*t)+yinitial); //starting velocity=maximum, ending velocity=0
  document.getElementById(divID).style.top  = nowtop  + 'px';
  document.getElementById(divID).style.left = nowleft + 'px'; 
  return; }
 else {
  nowleft = parseInt(xdifference*(-.5*t*t*t+1.5*t)+xinitial); //starting velocity=maximum, ending velocity=0
  nowtop  = parseInt(ydifference*(-.5*t*t*t+1.5*t)+yinitial); //starting velocity=maximum, ending velocity=0
  document.getElementById(divID).style.top  = nowtop  + 'px';
  document.getElementById(divID).style.left = nowleft + 'px'; 
 }
 doingTimeout = setTimeout("SlideTheMessage()",parseInt(1000*timeincrement));
}

function GetCoordinates() {

 var scrollpositionX = 0, scrollpositionY = 0, viewX = 0, viewY = 0;

 if(self.pageYOffset) {
  scrollpositionX = self.pageXOffset;
  scrollpositionY = self.pageYOffset;}
 else if(document.documentElement&&document.documentElement.scrollTop) {
  scrollpositionX = document.documentElement.scrollLeft;
  scrollpositionY = document.documentElement.scrollTop; }
 else if(document.body) {
  scrollpositionX = document.body.scrollLeft;
  scrollpositionY = document.body.scrollTop;
 }

 if(self.innerWidth) { viewX = self.innerWidth; }
 else if(document.documentElement&&document.documentElement.clientWidth) { viewX = document.documentElement.clientWidth; }
 else if(document.body) { viewX = document.body.clientWidth; }

 var rightEdge = viewX - scrolloffsetX + scrollpositionX;

 nowleft = parseInt(document.getElementById(divID).style.left);
 toleft  = rightEdge-divWidth-divBorderWidth-divBorderWidth;
 nowtop  = parseInt(document.getElementById(divID).style.top);
 totop   = scrollpositionY;

}

function PositionFloatingMessage() {
 clearTimeout(doingTimeout);
 SlideTheMessage();
}


window.onscroll = PositionFloatingMessage;
window.onresize = PositionFloatingMessage;
window.onload   = PositionFloatingMessage;