// Global Variables Start

var i        = 0;
var j        = -1;
var interval = 5;
var Img      = new Array();
var timeoutid;




function refreshimg()
{

	if (i == 0)
	   document.slidecontrol.previous.disabled = true;
        else
	   document.slidecontrol.previous.disabled = false;
	
	if (i == Img.length - 1)
	   document.slidecontrol.next.disabled = true;
	else
	   document.slidecontrol.next.disabled = false;

	if (navigator.appName == "Microsoft Internet Explorer")
	{
	   document.images['pics'].style.filter="blendTrans(duration=2)";
	   document.images['pics'].filters.blendTrans.Apply();
	}
	
	document.images['pics'].src   = Img[i];
	document.all.slideindex.innerHTML = (i + 1) + ' of ' + Img.length;
	i++;
	
	if (navigator.appName == "Microsoft Internet Explorer")
	{
 	   document.images['pics'].filters.blendTrans.Play();
	}

	if (i > Img.length)
	{
	   i = 0;
	   document.images['pics'].src   = Img[i];
	   document.all.slideindex.innerHTML = (i + 1) + ' of ' + Img.length;
	   document.slidecontrol.start.value = ' Start ';
	   document.slidecontrol.pause.disabled = true;
	   document.slidecontrol.previous.disabled = true;
	   document.slidecontrol.next.disabled = true;
	   return;
	}
	timeoutid = setTimeout('refreshimg()', interval * 1000);
	
}

function changeinterval()
{
  interval = document.slidecontrol.interval.options[document.slidecontrol.interval.selectedIndex].value;
}

function startover()
{
	if (document.slidecontrol.start.value == ' Start ')
	{
           i = 0;
           refreshimg();
           document.slidecontrol.start.value = ' Start Over ';
           document.slidecontrol.next.disabled = false;	
           document.slidecontrol.pause.disabled = false;	
        }

	else if (document.slidecontrol.start.value == ' Start Over ')
	{
           clearTimeout(timeoutid);
           i = 0;
           refreshimg();
	   document.slidecontrol.pause.value = ' Pause ';
        }
}

function playpause()
{
	if (document.slidecontrol.pause.value == ' Pause ')
	{
	   clearTimeout(timeoutid);
	   document.slidecontrol.pause.value = ' Play ';
	}

	else if (document.slidecontrol.pause.value == ' Play ')
	{
	   i--;
	   refreshimg();
	   document.slidecontrol.pause.value = 'Pause ';
	}
}

function move(n)
{
	clearTimeout(timeoutid);
	i--;
	i = i + n;
	refreshimg();
	document.slidecontrol.pause.disabled = false;	
	document.slidecontrol.pause.value = ' Pause ';
}



function loopimg()
{
	if (navigator.appName == "Microsoft Internet Explorer")
	{
	   document.images['pics'].style.filter="blendTrans(duration=2)";
	   document.images['pics'].filters.blendTrans.Apply();
	}

	document.images['pics'].src = Img[i];
	
	if (navigator.appName == "Microsoft Internet Explorer")
	{
 	   document.images['pics'].filters.blendTrans.Play();
	}

	i++;

	if (i > Img.length)
	{
	   i = 0;
	   document.images['pics'].src   = Img[i];
	}
	timeoutid = setTimeout('loopimg()', interval * 1000);
	
}