problem with JS image scroller on Safari & IE 5

[macless]

Hello,
i have a thumbnail scroller in javascript (1.2) that works fine (on PC and on Mac OSX Safari and IE 5) when i have 4 or 5 thumbnails loaded in, but when there are more than 7 or 8, it starts to do really strange stuff, (the scroller stops moving, an image doesn't appear, etc).

Is it a preload thing or a version thing maybe ?

I'd love any help possible on this.

the page where i'm having trouble can be found by going to http://66.241.249.133/indexpop.cfm, entering the site, and selecting "Eye Candy".


Here's the code:

<script language="JavaScript1.2">

//Specify the slider's width (in pixels)
var sliderwidth="730px"
//Specify the slider's height
var sliderheight="75px"
//Specify the slider's slide speed (larger is faster 1-10)
var slidespeed=2
//configure background color:
slidebgcolor="#ffffff"

//Specify the slider's images example: leftrightslide[0]='<a href="http://"><img src="dynamicbook1.gif" border=1></a>'
//leftrightslide[]='<a href="http://www.imagegallery.cfm" target="iframe"><img src="" border=0></a>'

var leftrightslide=new Array()
var finalslide='.'
<cfoutput query="getimages">
<cfset index = CurrentRow - 1>
leftrightslide[#index#]='<a href="imagegallery.cfm?zimgid=#itemid#" target="iframe"><img src="itemimages/thumbs/#itemthumb#" border="0"></a><img src="graphics/spot.gif" width="10">'
</cfoutput>


////NO NEED TO EDIT BELOW THIS LINE////////////

var copyspeed=slidespeed
leftrightslide='<nobr>'+leftrightslide.join(" ")+'</nobr>'
var iedom=document.all||document.getElementById
if (iedom)
document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100px;left:-9000px">'+leftrightslide+'</span>')
var actualwidth='100'
var cross_slide, ns_slide

function fillup(){
if (iedom){
cross_slide=document.getElementById? document.getElementById("test2") : document.all.test2
cross_slide2=document.getElementById? document.getElementById("test3") : document.all.test3
cross_slide.innerHTML=cross_slide2.innerHTML=leftrightslide
actualwidth=document.all? cross_slide.offsetWidth : document.getElementById("temp").offsetWidth
cross_slide2.style.left=actualwidth+34+"px"
}
else if (document.layers){
ns_slide=document.ns_slidemenu.document.ns_slidemenu2
ns_slide2=document.ns_slidemenu.document.ns_slidemenu3
ns_slide.document.write(leftrightslide)
ns_slide.document.close()
actualwidth=ns_slide.document.width
ns_slide2.left=actualwidth+34
ns_slide2.document.write(leftrightslide)
ns_slide2.document.close()
} ///This is the speed ////
lefttime=setInterval("slideleft()",30)
}
window.onload=fillup

function slideleft(){
if (iedom){
if (parseInt(cross_slide.style.left)>(actualwidth*(-1)+8))
cross_slide.style.left=parseInt(cross_slide.style.left)-copyspeed+"px"
else
cross_slide.style.left=parseInt(cross_slide2.style.left)+actualwidth+4+"px"

if (parseInt(cross_slide2.style.left)>(actualwidth*(-1)+8))
cross_slide2.style.left=parseInt(cross_slide2.style.left)-copyspeed+"px"
else
cross_slide2.style.left=parseInt(cross_slide.style.left)+actualwidth+4+"px"

}
else if (document.layers){
if (ns_slide.left>(actualwidth*(-1)+8))
ns_slide.left-=copyspeed
else
ns_slide.left=ns_slide2.left+actualwidth+20

if (ns_slide2.left>(actualwidth*(-1)+8))
ns_slide2.left-=copyspeed
else
ns_slide2.left=ns_slide.left+actualwidth+20
}
}


if (iedom||document.layers){
with (document){
document.write('<table border="0" cellspacing="0" cellpadding="4"><td>')
if (iedom){
write('<div style="position:relative;width:'+sliderwidth+';height:'+sliderheight+';overflow:hidde n">')
write('<div style="position:absolute;width:'+sliderwidth+';height:'+sliderheight+';background-color:'+slidebgcolor+'" onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed">')
write('<div id="test2" style="position:absolute;left:0px;top:0px"></div>')
write('<div id="test3" style="position:absolute;left:-1000px;top:0px"></div>')
write('</div></div>')
}
else if (document.layers){
write('<ilayer width='+sliderwidth+' height='+sliderheight+' name="ns_slidemenu" bgColor='+slidebgcolor+'>')
write('<layer name="ns_slidemenu2" left=0 top=0 onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed"></layer>')
write('<layer name="ns_slidemenu3" left=0 top=0 onMouseover="copyspeed=0" onMouseout="copyspeed=slidespeed"></layer>')
write('</ilayer>')
}
document.write('</td></table>')
}
}
</script>