slide immagini + aggiunta funzioni STOP E RIPRENDI

[giorgiogt]

Salve a tutti, ho scopiazzato questo script per lo scorrimento di immagini, vorrei aggiungerci un tasto di STOP e RIPRENDI, mi dareste un aiuto?
ecco il risultato http://www.keser.it/ftp/mailing_piegati/

<script type="text/javascript" language="JavaScript">
<!--
var slideshow_width='665px'
var slideshow_height='500px'
var pause=5000
var slidebgcolor="#ffffff"

var dropimages=new Array()
dropimages[0]="img/01.jpg"
dropimages[1]="img/02.jpg"
dropimages[2]="img/03.jpg"
dropimages[3]="img/04.jpg"
dropimages[4]="img/05.jpg"
dropimages[5]="img/06.jpg"
dropimages[6]="img/07.jpg"
dropimages[7]="img/08.jpg"
dropimages[8]="img/09.jpg"

var droplinks=new Array()
droplinks[0]="http://www.keser.it/ftp/mailing_piegati/IMG/01.jpg"
droplinks[1]="http://www.keser.it/ftp/mailing_piegati/IMG/02.jpg"
droplinks[2]="http://www.keser.it/ftp/mailing_piegati/IMG/03.jpg"
droplinks[3]="http://www.keser.it/ftp/mailing_piegati/IMG/04.jpg"
droplinks[4]="http://www.keser.it/ftp/mailing_piegati/IMG/05.jpg"
droplinks[5]="http://www.keser.it/ftp/mailing_piegati/IMG/06.jpg"
droplinks[6]="http://www.keser.it/ftp/mailing_piegati/IMG/07.jpg"
droplinks[7]="http://www.keser.it/ftp/mailing_piegati/IMG/08.jpg"
droplinks[8]="http://www.keser.it/ftp/mailing_piegati/IMG/09.jpg"






var preloadedimages=new Array()
for (p=0;p<dropimages.length;p++){
preloadedimages[p]=new Image()
preloadedimages[p].src=dropimages[p]
}

var ie4=document.all
var dom=document.getElementById

if (ie4||dom)
document.write('<div style="position:relative;width:'+slideshow_width+';height:'+slideshow_height+';overflow:hidden"><div id="canvas0" style="position:absolute;width:'+slideshow_width+';height:'+slideshow_height+';background-color:'+slidebgcolor+';left:-'+slideshow_width+'"></div><div id="canvas1" style="position:absolute;width:'+slideshow_width+';height:'+slideshow_height+';background-color:'+slidebgcolor+';left:-'+slideshow_width+'"></div></div>')
else
document.write('<a href="java-script:rotatelink()" ><img name="defaultslide" src="'+dropimages[0]+'" border=0></a>')

var curpos=parseInt(slideshow_width)*(-1)
var degree=10
var curcanvas="canvas0"
var curimageindex=linkindex=0
var nextimageindex=1

function movepic(){
if (curpos<0){
curpos=Math.min(curpos+degree,0)
tempobj.style.left=curpos+"px"
}
else{

clearInterval(dropslide)
nextcanvas=(curcanvas=="canvas0")? "canvas0" : "canvas1"
tempobj=ie4? eval("document.all."+nextcanvas) : document.getElementById(nextcanvas)
var slideimage='<img src="'+dropimages[curimageindex]+'" border=0>'
tempobj.innerHTML=(droplinks[curimageindex]!="")? '<a href="'+droplinks[curimageindex]+'">'+slideimage+'</a>' : slideimage
nextimageindex=(nextimageindex<dropimages.length-1)? nextimageindex+1 : 0
setTimeout("rotateimage()",pause)
}
}

function rotateimage(){
if (ie4||dom){
resetit(curcanvas)
var crossobj=tempobj=ie4? eval("document.all."+curcanvas) : document.getElementById(curcanvas)
crossobj.style.zIndex++
var temp='setInterval("movepic()",50)'
dropslide=eval(temp)
curcanvas=(curcanvas=="canvas0")? "canvas1" : "canvas0"
}
else
document.images.defaultslide.src=dropimages[curimageindex]
linkindex=curimageindex
curimageindex=(curimageindex<dropimages.length-1)? curimageindex+1 : 0
}

function rotatelink(){
if (droplinks[linkindex]!="")
window.location=droplinks[linkindex]
}

function resetit(what){
curpos=parseInt(slideshow_width)*(-1)
var crossobj=ie4? eval("document.all."+what) : document.getElementById(what)
crossobj.style.left=curpos+"px"
}

function startit(){
var crossobj=ie4? eval("document.all."+curcanvas) : document.getElementById(curcanvas)
crossobj.innerHTML='<a href="'+droplinks[curimageindex]+'"><img src="'+dropimages[curimageindex]+'" border=0></a>'
rotateimage()
}

if (ie4||dom)
window.onload=startit
else
setInterval("rotateimage()",pause)



//-->
</script>