var slideShowSpeed = 5000;
var crossFadeDuration = 5;

var t;
var j = 0;
var p = Pic.length;
var preLoad = new Array();
for (i = 0; i < p; i++) {
preLoad[i] = new Image();
preLoad[i].src = Pic[i];
}
function runSlideShow() {
	blendit() 
	j = j + 1;
	if (j > (p - 1)) j = 0;
	t = setTimeout('runSlideShow()', slideShowSpeed);
}

function blendit() {
	if (document.all) {
		document.images.SlideShow.style.filter="blendTrans(duration=2)";
		document.images.SlideShow.style.filter="blendTrans(duration=crossFadeDuration)";
		document.images.SlideShow.filters.blendTrans.Apply();
	}
	document.images.SlideShow.src=preLoad[j].src; 
	if (document.all) {
		document.images.SlideShow.filters.blendTrans.Play();
	}
}


function previous_image(){ 
	if (j==0) {
		j=Pic.length
		j--
		blendit()
		
	}  
	else if (j>0) {
		j--
		blendit()
	}
}


function next_image(){ 
    if (j<Pic.length)
    {
       j++
       if (j==Pic.length) 
       j=0
       blendit()
    }
}