/***********************************************
* CMotion Image Gallery- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit http://www.dynamicDrive.com for source code
* This copyright notice must stay intact for legal use
* Modified for autowidth and optional starting positions in
* http://www.dynamicdrive.com/forums/showthread.php?t=11839 by jschuer1 8/5/06
***********************************************/

 //1) Set width of the "neutral" area in the center of the gallery.
var restarea=6;
 //2) Set top scroll speed in pixels. Script auto creates a range from 0 to top speed.
var maxspeed=7;
 //3) Set to maximum width for gallery - must be less than the actual length of the image train.
var maxwidth=1000;
 //4) Set to 1 for left start, 0 for right, 2 for center.
var startpos=0;
 //5) Set message to show at end of gallery. Enter "" to disable message.
var endofgallerymsg = '<span style="font-size: 11px;">End of Gallery</span>';

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, scrollspeed=0, movestate='', actualwidth='', cross_scroll, ns_scroll, statusdiv, loadedyes=0, lefttime, righttime;

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(){
	var mainobjoffset=getposOffset(crossmain, "left"),
	menuheight=parseInt(crossmain.offsetHeight),
	mainobjoffsetH=getposOffset(crossmain, "top");
	statusdiv.style.left=mainobjoffset+(menuwidth/2)-(statusdiv.offsetWidth/2)+"px";
	statusdiv.style.top=menuheight+mainobjoffsetH+"px";
}

function showhidediv(what){
	if (endofgallerymsg != "") {
		positiondiv();
		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;
}

var is_moving = false;
var num_steps = 0;

function moveleftonepicture(start_move){
	if(start_move && is_moving) {
		return;
	}
	if(start_move) {
		num_steps = 21;
		is_moving = true;
	} else {
		if(num_steps <= 0) {
			is_moving = false;
			movestate = "";
			return;
		}
		num_steps--;
	}	
	if (loadedyes) {
		movestate="left";
		if (iedom && parseInt(cross_scroll.style.left) > (-actualwidth * 2/3)){
			cross_scroll.style.left = (parseInt(cross_scroll.style.left) - 5) +"px";
		} else {
			cross_scroll.style.left = "0px";
		}
	}
	lefttime = setTimeout("moveleftonepicture(false)", 10);
}

function moverightonepicture(start_move){
	if(start_move && is_moving) {
		return;
	}
	if(start_move) {
		num_steps = 21;
		is_moving = true;
	} else {
		if(num_steps <= 0) {
			is_moving = false;
			movestate = "";
			return;
		}
		num_steps--;
	}

	if (loadedyes){
		movestate = "right";
		if (iedom && parseInt(cross_scroll.style.left) < 0){
			cross_scroll.style.left = (parseInt(cross_scroll.style.left) + 5) +"px";
		} else {
			cross_scroll.style.left = (-actualwidth * 2/3) + "px";
		}
	}
	righttime = setTimeout("moverightonepicture(false)", 10);
}


function moveleft(){
	if (loadedyes){
		movestate="left";
		if (iedom&&parseInt(cross_scroll.style.left)>(-actualwidth * 2/3)){
			cross_scroll.style.left=parseInt(cross_scroll.style.left) - (scrollspeed * 2) +"px";
		} else {
			cross_scroll.style.left = "0px";
		}
	}
	lefttime = setTimeout("moveleft()",10);
}

function moveright(){
	if (loadedyes){
		movestate="right";
		if (iedom&&parseInt(cross_scroll.style.left)<0){
			cross_scroll.style.left=parseInt(cross_scroll.style.left)+scrollspeed+"px";
		} else {
			cross_scroll.style.left = (- actualwidth * 2/3) + "px";
		}
	}
	righttime = setTimeout("moveright()",10);
}

function motionengine(e){
	var mainobjoffset=getposOffset(crossmain, "left"),
	dsocx=(window.pageXOffset)? pageXOffset: ietruebody().scrollLeft,
	dsocy=(window.pageYOffset)? pageYOffset : ietruebody().scrollTop,
	curposy=window.event? event.clientX : e.clientX? e.clientX: "";
	curposy-=mainobjoffset-dsocx;
	var leftbound=(menuwidth-restarea)/2;
	var rightbound=(menuwidth+restarea)/2;
	if (curposy>rightbound){
		scrollspeed=(curposy-rightbound)/((menuwidth-restarea)/2) * maxspeed;
		clearTimeout(righttime);
		if (movestate!="left") moveleft();
	}
	else if (curposy<leftbound){
		scrollspeed=(leftbound-curposy)/((menuwidth-restarea)/2) * maxspeed;
		clearTimeout(lefttime);
		if (movestate!="right") moveright();
	}
	else
		scrollspeed=0;
}

function contains_ns6(a, b) {
if (b!==null)
while (b.parentNode)
if ((b = b.parentNode) == a)
return true;
return false;
}

function stopmotion(e){
	if (!window.opera||(window.opera&&e.relatedTarget!==null))
	if ((window.event&&!crossmain.contains(event.toElement)) || (e && e.currentTarget && e.currentTarget!= e.relatedTarget && !contains_ns6(e.currentTarget, e.relatedTarget))){
		clearTimeout(lefttime);
		clearTimeout(righttime);
		movestate="";
	}
	is_moving = false;
}

function fillup(){
	if (iedom){
		crossmain = document.getElementById? document.getElementById("motioncontainer") : document.all.motioncontainer;
		if(typeof crossmain.style.maxWidth!=='undefined')
			crossmain.style.maxWidth=maxwidth+'px';
		menuwidth = crossmain.offsetWidth;
		cross_scroll = document.getElementById ? document.getElementById("motiongallery") : document.all.motiongallery;
		actualwidth = document.getElementById ? document.getElementById("trueContainer").offsetWidth : document.all['trueContainer'].offsetWidth;

		if (startpos)
			cross_scroll.style.left=(menuwidth-actualwidth)/startpos+'px';

		crossmain.onmousemove=function(e){
			motionengine(e);
		}

		crossmain.onmouseout=function(e){
			stopmotion(e);
			showhidediv("hidden");
		}
	}
	loadedyes=1
	if (endofgallerymsg!=""){
		creatediv();
		positiondiv();
	}
	if (document.body.filters)
		onresize()
}

window.onload = fillup;

onresize = function(){
	if (typeof motioncontainer !== 'undefined' && motioncontainer.filters){
		motioncontainer.style.width="0";
		motioncontainer.style.width="";
		motioncontainer.style.width=Math.min(motioncontainer.offsetWidth, maxwidth)+'px';
	}
	menuwidth=crossmain.offsetWidth;
	cross_scroll.style.left=startpos? (menuwidth-actualwidth)/startpos+'px' : 0;
}

function setMainImage(index) {
	document.images['main_gallery_image'].src = "resources/images/image-1.jpg";
}