Hjælp til animations-script

Jeg har fundet dette animations-script på Dynamic Drive.

<script language="JavaScript1.2">

        //Fade-in image slideshow- By Dynamic Drive
        //For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
        //This credit MUST stay intact for use

        var slideshow_width='320px' //SET IMAGE WIDTH
        var slideshow_height='240px' //SET IMAGE HEIGHT
        var pause=500 //SET PAUSE BETWEEN SLIDE (3000=3 seconds)

        var fadeimages=new Array()
        //SET IMAGE PATHS. Extend or contract array as needed
        <%
        response.write JavaString
        %>
        ////NO need to edit beyond here/////////////

        var preloadedimages=new Array()
        for (p=0;p<fadeimages.length;p++){
        preloadedimages[p]=new Image()
        preloadedimages[p].src=fadeimages[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+';top:0;left:0;filter:alpha(opacity=10);-moz-opacity:10"></div><div id="canvas1" style="position:absolute;width:'+slideshow_width+';height:'+slideshow_height+';top:0;left:0;filter:alpha(opacity=10);-moz-opacity:10"></div></div>')
        else
        document.write('<img name="defaultslide" src="'+fadeimages[0]+'">')

        var curpos=10
        var degree=10
        var curcanvas="canvas0"
        var curimageindex=0
        var nextimageindex=1


        function fadepic(){
        if (curpos<100){
        curpos+=10
        if (tempobj.filters)
        tempobj.filters.alpha.opacity=curpos
        else if (tempobj.style.MozOpacity)
        tempobj.style.MozOpacity=curpos/100
        }
        else{
        clearInterval(dropslide)
        nextcanvas=(curcanvas=="canvas0")? "canvas0" : "canvas1"
        tempobj=ie4? eval("document.all."+nextcanvas) : document.getElementById(nextcanvas)
        tempobj.innerHTML='<img src="'+fadeimages[nextimageindex]+'">'
        nextimageindex=(nextimageindex<fadeimages.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("fadepic()",50)'
        dropslide=eval(temp)
        curcanvas=(curcanvas=="canvas0")? "canvas1" : "canvas0"
        }
        else
        document.images.defaultslide.src=fadeimages[curimageindex]
        curimageindex=(curimageindex<fadeimages.length-1)? curimageindex+1 : 0
        }

        function resetit(what){
        curpos=10
        var crossobj=ie4? eval("document.all."+what) : document.getElementById(what)
        if (crossobj.filters)
        crossobj.filters.alpha.opacity=curpos
        else if (crossobj.style.MozOpacity)
        crossobj.style.MozOpacity=curpos/100
        }

        function startit(){
        var crossobj=ie4? eval("document.all."+curcanvas) : document.getElementById(curcanvas)
        crossobj.innerHTML='<img src="'+fadeimages[curimageindex]+'">'
        rotateimage()
        }
       
        if (ie4||dom)
        window.onload=startit
        else
        setInterval("rotateimage()",pause)

        </script>

Jeg har brug for at ændre følgende:
1) Animationen skal kun vises en gang i stedet for at den looper uendeligt
2) En "stop-animation"-funktion

Pft.