// Author: Anthony Tu

<!--
var Slides = new Array()
if (document.images)
{  // make sure images are supported
  Slides[0] = new Image(450,300)  // pre-cache slide images
  Slides[1] = new Image(450,300)
  Slides[2] = new Image(450,300)
  Slides[3] = new Image(450,300)
  Slides[4] = new Image(450,300)
  Slides[5] = new Image(450,300)
  Slides[6] = new Image(450,300)
  

  Slides[0].src = "slide_pic/alt-calvus.jpg"  // assign source files
  Slides[1].src = "slide_pic/api-agassizi.jpg"
  Slides[2].src = "slide_pic/cop-borleyi.jpg"
  Slides[3].src = "slide_pic/cya-furcifer.jpg"
  Slides[4].src = "slide_pic/oph-ventralis.jpg"
  Slides[5].src = "slide_pic/tang3.jpg"
  Slides[6].src = "slide_pic/tang5.jpg"
  
}
else
{    //  images not supported - set arrays to blanks
    Slides[0] = ""
    Slides[1] = ""
    Slides[2] = ""
    Slides[3] = ""
    Slides[4] = ""
    Slides[5] = ""
    Slides[6] = ""
    
    Slides[0].src = ""
    Slides[1].src = ""
    Slides[2].src = ""
    Slides[3].src = ""
    Slides[4].src = ""
    Slides[5].src = ""
    Slides[6].src = ""
}

var indexSlide = 0
var lastSlide = Slides.length
var check = 0

function Doauto()
{
	check = 1
	randomIt()
}
function Domanual()
{
	check = 0
    randomIt()
}

function nextPix()
{
	if(check == 0)
	{
		indexSlide++
  		if (indexSlide > lastSlide-1)
  		{
    			indexSlide = 0
  		}
  		document.Pix.src = Slides[indexSlide].src
	}
	else
	   return
}

function previousPix ()
{
	if(check == 0)
	{
		indexSlide--
  		if (indexSlide < 0)
  		{
    			indexSlide = lastSlide-1
  		}
  		document.Pix.src = Slides[indexSlide].src
	}
	else
	   return
}

var timerID
function randomIt(check)
{
	if(check == 1)
	{
		indexSlide = Math.round(Math.random()*5)+1
	 	document.Pix.src = Slides[indexSlide].src
		timerID = setTimeout("randomIt(1)",10000)
	}
	else
	{
		clearTimeout(timerID)
	}

}