/***********************************************
* CMotion Image Gallery- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit http://www.dynamicDrive.com for source code
* Last updated Mar 25th, 06'.  Vertical - Continuous (jscheuer1)
* This copyright notice must stay intact for legal use
* modified in http://www.dynamicDrive.com/forums
* for vertical orientation & continuous motion by jscheuer1
***********************************************/

var restarea=6 //1) width of the "neutral" area in the center of the gallery in px
var maxspeed=3 //2) top scroll speed in pixels. Script auto creates a range from 0 to top speed.
var defaultspeed=1 //3) speed of scroll when gallery loads and on mouseout.
var startdir='up' //4 'up' or 'down' initial direction
var stayput=0 //5) 0 for gallery always in motion onmouseout, 1 for remains halted onmouseout if not moving when mouse moves out.

function enlargeimage(path, optWidth, optHeight){ //function to enlarge image. Change as desired.
var actualWidth=typeof optWidth!="undefined" ? optWidth : "600px" //set 600px to default width
var actualHeight=typeof optHeight!="undefined" ? optHeight : "500px" //set 500px to  default height
var winattributes="width="+actualWidth+",height="+actualHeight+",resizable=yes"
window.open(path,"", winattributes)
}

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

var iedom=document.all||document.getElementById
var scrollspeed=0
var movestate=""

var actualheight=''
var cross_scroll_0, cross_scroll_1
var loadedyes=0

function ietruebody(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}


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 (iedom&&loadedyes){
movestate="up"
if (parseInt(cross_scroll_0.style.top)<(-actualheight))
cross_scroll_0.style.top=parseInt(cross_scroll_1.style.top)+actualheight+"px"
if (parseInt(cross_scroll_1.style.top)<(-actualheight))
cross_scroll_1.style.top=parseInt(cross_scroll_0.style.top)+actualheight+"px"
cross_scroll_0.style.top=parseInt(cross_scroll_0.style.top)-scrollspeed+"px"
cross_scroll_1.style.top=parseInt(cross_scroll_1.style.top)-scrollspeed+"px"

}
uptime=setTimeout("moveup()",10)
}

function movedown(){
if (iedom&&loadedyes){
movestate="down"
if (parseInt(cross_scroll_0.style.top)>0)
cross_scroll_1.style.top=parseInt(cross_scroll_0.style.top)-actualheight+"px"
if (parseInt(cross_scroll_1.style.top)>0)
cross_scroll_0.style.top=parseInt(cross_scroll_1.style.top)-actualheight+"px"
cross_scroll_0.style.top=parseInt(cross_scroll_0.style.top)+scrollspeed+"px"
cross_scroll_1.style.top=parseInt(cross_scroll_1.style.top)+scrollspeed+"px"
}
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=Math.floor((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 (scrollspeed<defaultspeed&&stayput)
return;
scrollspeed=defaultspeed
}
}

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_0=document.getElementById? document.getElementById("motiongallery") : document.all.motiongallery
cross_scroll_1=document.createElement('div')
cross_scroll_1.style.position='absolute'
cross_scroll_1.innerHTML=cross_scroll_0.innerHTML
crossmain.appendChild(cross_scroll_1)
actualheight=cross_scroll_0.offsetHeight
cross_scroll_1.style.top=actualheight+'px'
crossmain.onmousemove=function(e){
motionengine(e)
}

crossmain.onmouseout=function(e){
stopmotion(e)
}
}
if (window.opera){
cross_scroll_0.style.top=menu_height-actualheight+'px'
setTimeout('cross_scroll_0.style.top=0', 10)
}
loadedyes=1
scrollspeed=defaultspeed
if (startdir=='up')
moveup()
else
movedown()
}

if ( typeof window.addEventListener != "undefined" )
    window.addEventListener( "load", fillup, false );
else if ( typeof window.attachEvent != "undefined" )
    window.attachEvent( "onload", fillup );
else {
    if ( window.onload != null ) {
        var oldOnload = window.onload;
        window.onload = function ( e ) {
            oldOnload( e );
            fillup();
        };
    }
    else
        window.onload = fillup;
}