var restarea=6 //1) width of the "neutral" area in the center of the gallery in px
    var maxspeed=7 //2) top scroll speed in pixels. Script auto creates a range from 0 to top speed.
    var endofgallerymsg="" //3) message to show at end of gallery. Enter "" to disable message.
    var iedom=document.all||document.getElementById
    var scrollspeed=0
    var movestate=""
    var actualheight=''
    var cross_scroll
    var loadedyes=0
    
    function ietruebody(){
    return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
    }
    
    function creatediv(){
    statusdiv=document.createElement("div")
    statusdiv.setAttribute("id","statusdiv")
    document.body.appendChild(statusdiv)
    statusdiv=document.getElementById("statusdiv")
    statusdiv.innerHTML=endofgallerymsg
    }
    
    function positiondiv(){
    menuwidth=parseInt(crossmain.offsetWidth)
    mainobjoffsetW=getposOffset(crossmain, "left")
    statusdiv.style.left=mainobjoffsetW+(menuwidth/2)-(statusdiv.offsetWidth/2)+"px"
    statusdiv.style.top=menu_height+mainobjoffset+10+"px"
    }
    
    function showhidediv(what){
    if (endofgallerymsg!="")
    statusdiv.style.visibility=what
    }
    
    function getposOffset(what, offsettype){
    var totaloffset=(offsettype=="left")? what.offsetLeft: what.offsetTop;
    var parentEl=what.offsetParent;
    while (parentEl!=null){
    totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
    parentEl=parentEl.offsetParent;
    }
    return totaloffset;
    }
    
    
    function moveup(){
    if (loadedyes){
    movestate="up"
    if (iedom&&parseInt(cross_scroll.style.top)>(menu_height-actualheight)){
    cross_scroll.style.top=parseInt(cross_scroll.style.top)-scrollspeed+"px"
    showhidediv("hidden")
    }
    else
    showhidediv("visible")
    }
    uptime=setTimeout("moveup()",10)
    }
    
    function movedown(){
    if (loadedyes){
    movestate="down"
    if (iedom&&parseInt(cross_scroll.style.top)<0){
    cross_scroll.style.top=parseInt(cross_scroll.style.top)+scrollspeed+"px"
    showhidediv("hidden")
    }
    else
    showhidediv("visible")
    }
    downtime=setTimeout("movedown()",10)
    }
    
    function motionengine(e){
    var dsocx=(window.pageXOffset)? pageXOffset: ietruebody().scrollLeft;
    var dsocy=(window.pageYOffset)? pageYOffset : ietruebody().scrollTop;
    var curposy=window.event? event.clientY : e.clientY? e.clientY: ""
    curposy-=mainobjoffset-dsocy
    var leftbound=(menu_height-restarea)/2
    var rightbound=(menu_height+restarea)/2
    if (curposy>rightbound){
    scrollspeed=(curposy-rightbound)/((menu_height-restarea)/2) * maxspeed
    if (window.downtime) clearTimeout(downtime)
    if (movestate!="up") moveup()
    }
    else if (curposy<leftbound){
    scrollspeed=(leftbound-curposy)/((menu_height-restarea)/2) * maxspeed
    if (window.uptime) clearTimeout(uptime)
    if (movestate!="down") movedown()
    }
    else
    scrollspeed=0
    }
    
    function contains_ns6(a, b) {
    while (b.parentNode)
    if ((b = b.parentNode) == a)
    return true;
    return false;
    }
    
    function stopmotion(e){
    if ((window.event&&!crossmain.contains(event.toElement)) || (e && e.currentTarget && e.currentTarget!= e.relatedTarget && !contains_ns6(e.currentTarget, e.relatedTarget))){
    if (window.downtime) clearTimeout(downtime)
    if (window.uptime) clearTimeout(uptime)
    movestate=""
    }
    }
    
    function fillup(){
    if (iedom){
    crossmain=document.getElementById? document.getElementById("motioncontainer") : document.all.motioncontainer
    menu_height=parseInt(crossmain.style.height)
    mainobjoffset=getposOffset(crossmain, "top")
    cross_scroll=document.getElementById? document.getElementById("motiongallery") : document.all.motiongallery
    actualheight=cross_scroll.offsetHeight
    
    crossmain.onmousemove=function(e){
    motionengine(e)
    }
    
    crossmain.onmouseout=function(e){
    stopmotion(e)
    showhidediv("hidden")
    }
    }
    if (window.opera){
    cross_scroll.style.top=menu_height-actualheight+'px'
    setTimeout('cross_scroll.style.top=0', 10)
    }
    loadedyes=1
    if (endofgallerymsg!=""){
    creatediv()
    positiondiv()
    }
    }
    window.onload=fillup