/***********************************************
* CMotion Image Gallery II- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit http://www.dynamicDrive.com for source code
* Modified by jscheuer1 for vertical orientation, at http://www.dynamicDrive.com/forums
***********************************************/

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="<span style='font-size: 11px'>End of Gallery</span>" //3) message to show at end of gallery. Enter "" to disable message.

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
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