var running = false
var endTime = null
var timerID = null
var currentNumber = 0
var currentIcon = ""

// pre-cache 17 icon images
image01 = new Image(316,92)
image01.src = "banana.gif"
image02 = new Image(316,92)
image02.src = "bird.gif"
image03 = new Image(316,92)
image03.src = "bucket.gif"
image04 = new Image(316,92)
image04.src = "computer.gif"
image05 = new Image(316,92)
image05.src = "dance.gif"
image06 = new Image(316,92)
image06.src = "fish.gif"
image07 = new Image(316,92)
image07.src = "glass.gif"
image08 = new Image(316,92)
image08.src = "hand.gif"
image09 = new Image(316,92)
image09.src = "mat.gif"
image10 = new Image(316,92)
image10.src = "paperclip.gif"
image11 = new Image(316,92)
image11.src = "pencil.gif"
image12 = new Image(316,92)
image12.src = "picture.gif"
image13 = new Image(316,92)
image13.src = "plane.gif"
image14 = new Image(316,92)
image14.src = "puzzle.gif"
image15 = new Image(316,92)
image152.src = "sunglasses.gif"
image16 = new Image(316,92)
image16.src = "teeth.gif"
image17 = new Image(316,92)
image17.src = "window.gif"

function startTimer() {
	running = true
	now = new Date()
	now = now.getTime()
	// change last multiple for the number of minutes
	endTime = now + (1000 * 0.1)
	showCountDown()
	chooseRandomImage()
	
}

function showCountDown() {
	var now = new Date()
	now = now.getTime()
	if (endTime - now <= 0) {
		stopTimer()
		//alert("what is the matter here? ")
		loadNextBanner()
	} else {
		var delta = new Date(endTime - now)
		var theMin = delta.getMinutes()
		var theSec = delta.getSeconds()
		var theTime = theMin
		theTime += ((theSec < 10) ? ":0" : ":") + theSec
		
		//document.forms[0].timerDisplay.value = theTime
		
		if (running) {
			timerID = setTimeout("showCountDown()",1000)
		}
		
	}
}

function stopTimer() {
	clearTimeout(timerID)
	running = false
	//document.forms[0].timerDisplay.value = "0:00"
}

function loadNextBanner() {
	var baseRef = document.images[3].src.substring(0,document.images[3].src.lastIndexOf("/") + 1)
	//alert('hello ' + baseRef);
	//alert('hello ' + baseRef + ' and the current icon: '  + currentIcon);
    //alert('hello ' + document.location.href);
	document.images[3].src = baseRef + currentIcon
	//startTimer()
}

function chooseRandomImage() {
	var newNumber = Math.round(Math.random() * 16) + 1;
	while (currentNumber == newNumber) {
	newNumber = Math.round(Math.random() * 16) + 1;
	}
	currentNumber = newNumber;

	switch (currentNumber) {
	case 1: 
		currentIcon = "banana.gif";
		break;
	case 2: 
		currentIcon = "bird.gif";
		break;
	case 3: 
		currentIcon = "bucket.gif";
		break;
	case 4: 
		currentIcon = "computer.gif";
		break;
	case 5: 
		currentIcon = "dance.gif";
		break;
	case 6: 
		currentIcon = "fish.gif";
		break;
	case 7: 
		currentIcon = "glass.gif";
		break;
	case 8: 
		currentIcon = "hand.gif";
		break;
	case 9: 
		currentIcon = "mat.gif";
		break;
	case 10: 
		currentIcon = "paperclip.gif";
		break;
	case 11: 
		currentIcon = "pencil.gif";
		break;
	case 12: 
		currentIcon = "picture.gif";
		break;
	case 13: 
		currentIcon = "plane.gif";
		break;
	case 14: 
		currentIcon = "puzzle.gif";
		break;
	case 15: 
		currentIcon = "sunglasses.gif";
		break;
	case 16: 
		currentIcon = "teeth.gif";
		break;
	case 17: 
		currentIcon = "window.gif";
		break;
	}
	//alert("number: " + currentNumber + " source: " + currentIcon);
	
}

function beginAnimation() {
	//alert("performing beginAnimation  16   ------")
    chooseRandomImage()
	//loadNextBanner() 
	startTimer()
	
	//call function "beginAnimation()" every 1 seconds
	setTimeout("beginAnimation()",5000)
	
	
}


	

// STANDARD ROLLOVER SCRIPTS--------------------

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_callJS(jsStr) { //v2.0
  return eval(jsStr)
}