// JavaScript Document
// Comma separated list of Images to rotate 
var imgsUL = new Array('images/UpperLeft/ul(0).jpg','images/UpperLeft/ul(1).jpg','images/UpperLeft/ul(2).jpg','images/UpperLeft/ul(3).jpg','images/UpperLeft/ul(4).jpg','images/UpperLeft/ul(5).jpg','images/UpperLeft/ul(6).jpg','images/UpperLeft/ul(7).jpg','images/UpperLeft/ul(8).jpg','images/UpperLeft/ul(9).jpg');
var imgsUR = new Array('images/UpperRight/ur(0).jpg','images/UpperRight/ur(1).jpg','images/UpperRight/ur(2).jpg','images/UpperRight/ur(3).jpg','images/UpperRight/ur(4).jpg','images/UpperRight/ur(5).jpg','images/UpperRight/ur(6).jpg', 'images/UpperRight/ur(7).jpg','images/UpperRight/ur(8).jpg','images/UpperRight/ur(9).jpg','images/UpperRight/ur(10).jpg');
//var imgsLL = new Array('Images/LowerLeft/ll(0).jpg','Images/LowerLeft/ll(1).jpg','Images/LowerLeft/ll(2).jpg','Images/LowerLeft/ll(3).jpg','Images/LowerLeft/ll(4).jpg','Images/LowerLeft/ll(5).jpg','Images/LowerLeft/ll(6).jpg');
//var imgsLR = new Array('Images/LowerRight/lr(0).jpg','Images/LowerRight/lr(1).jpg','Images/LowerRight/lr(2).jpg','Images/LowerRight/lr(3).jpg','Images/LowerRight/lr(4).jpg','Images/LowerRight/lr(5).jpg','Images/LowerRight/lr(6).jpg');
// delay in milliseconds between image swaps 1000 = 1 second 
var delay = 3500;

var ULcounter = 1;
var URcounter = 1;
//var LLcounter = 1;
//var LRcounter = 1;
var counter = 0;
var currentULName;
var currentURName;
//var currentLLName;
//var currentLRName;
var firstTimeIn = 1;


//initialize variables upon window load
function initVars() 
{
 currentULName = document.getElementById('upperLeft');
 currentURName = document.getElementById('upperRight');
// currentLLName = document.getElementById('lowerLeft');
// currentLRName = document.getElementById('lowerRight');
}

function randomImages()
{
   if(counter == 2)  //number of squares (0->3)    
//  if(counter == 4)  //number of squares (0->3)    
    counter = 0;
  if(ULcounter == (imgsUL.length))
    ULcounter = 0;
  if(URcounter == (imgsUR.length))
    URcounter = 0;
//if(LRcounter == (imgsLR.length))
//  LRcounter = 0;
//if(LLcounter == (imgsLL.length))
//  LLcounter = 0;

  
  
  //upperLeft
  if (counter == 0 && firstTimeIn == 0)
//  if (counter == 3 && firstTimeIn == 0)
  {
  currentULName = document.getElementById('upperLeft');
  javascript:crossfade(currentULName, imgsUL[ULcounter], '2', 'Accessible Website Menu [white]')
   ULcounter++;
  }
 
  //lowerRight
//  if (counter == 2 && firstTimeIn == 0)
//  {
//   currentLRName = document.getElementById('lowerRight');
//   javascript:crossfade(currentLRName, imgsLR[LRcounter], '2', 'Accessible Website Menu [white]')
//   LRcounter++;
//  }
  
  //Upper Right
  if (counter == 1 && firstTimeIn == 0)
  {
   currentURName = document.getElementById('upperRight');
   javascript:crossfade(currentURName, imgsUR[URcounter], '2', 'Accessible Website Menu [white]')
   URcounter++;
  }
  
  //Lower Left
//  if (counter == 0 && firstTimeIn == 0)
//  	{
//      currentLLName = document.getElementById('lowerLeft');
//	  javascript:crossfade(currentLLName, imgsLL[LLcounter], '2', 'Accessible Website Menu [white]')
// 	  LLcounter++;
//	}

  if (firstTimeIn == 0)
  {
   counter++;
   setTimeout('randomImages()', delay);
  }
  else  //don't switch image on page load
  {
   firstTimeIn = 0;
   setTimeout('randomImages()', delay);
  }
 }
function MM_callJS(jsStr) { //v2.0
	MM_openBrWindow('ImagePreview.html','Preview','');
  return eval(jsStr)
}

function getNameandPop(imageCorner)
{
 
//  if (imageCorner == 'ul')
//    MM_openBrWindow(currentULName.src,"Preview","width = 800, height = 600");
//  if (imageCorner == 'ur')
//    MM_openBrWindow(currentURName.src,"Preview","width = 800, height = 600");
//  if (imageCorner == 'll')
//    MM_openBrWindow(currentLLName.src,"Preview","width = 800, height = 600");
//  if (imageCorner == 'lr')
//    MM_openBrWindow(currentLRName.src,"Preview","width = 800, height = 600");

}

function MM_openBrWindow(theURL,winName,features)
{ //v2.0
  window.open(theURL,winName,features);
}
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