/***********************************************
* 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='  End of Gallery';

var titlemsg = '';

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 createtitlediv()
{
	titlediv	=	document.createElement("div");	
	titlediv.setAttribute("id","titlediv");
	document.body.appendChild(titlediv);
	titlediv	=	document.getElementById("titlediv");
	titlediv.innerHTML	=	titlemsg;	
}

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

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();
		titlediv.innerHTML += endofgallerymsg;
		titlediv.style.visibility=what;
	}
}

function showhidetitlediv(what, msg, end)
{
	if( "" == msg ){
		msg = titlediv.innerHTML;
	}
	if (msg!="") {
		positiontitlediv();
		titlediv.style.visibility=what;
		titlediv.innerHTML =	'<span style="position:relative;font-size: 11px;">'+ msg +'</span>';
	}
}

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 moveleft()
{
	if (loadedyes){
		movestate	=	"left";
		if (iedom&&parseInt(cross_scroll.style.left)>(menuwidth-actualwidth)){
			cross_scroll.style.left=parseInt(cross_scroll.style.left)-scrollspeed+"px";			
		} //else showhidetitlediv("hidden", "", true);
	}
	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 showhidetitlediv("hidden", "", true);
	}
	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="";
		}
}

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);
			showhidetitlediv("hidden", "", true);
		}
	}
	loadedyes=1
	if (endofgallerymsg!=""){
		creatediv();
		positiondiv();
	}
	createtitlediv();
	positiontitlediv();	

	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;
}