/***********************************************
* 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=15;
 //2) Set top scroll speed in pixels. Script auto creates a range from 0 to top speed.
var maxspeed=3;
 //3) Set to maximum width for gallery - must be less than the actual length of the image train.
var maxwidth=656;
 //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='';

//function enlargeImage(path) {
//    document.getElementById("galleryMainImage").innerHTML = "<img src='" + path + "' border='0' />";
//}

function enlargeImage(path, imgAspect, mainWidth, mainHeight) {
    if(imgAspect=="p")
    {
       document.getElementById("galleryMainImage").innerHTML = "<table width='" + mainWidth + "'><tr><td align='center'><img src='" + path + "' id='" + path + "' border='0' height='" + mainHeight + "' /></td></tr></table>";
    }
    else
    {
       document.getElementById("galleryMainImage").innerHTML = "<table width='" + mainWidth + "'><tr><td align='center'><img src='" + path + "' id='" + path + "' border='0' height='" + mainHeight + "'/></td></tr></table>";
    }
    
    opacity(path, 0,100,500);
    
}

////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;
}


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";
showhidediv("hidden");
}
else
showhidediv("visible");
}
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";
showhidediv("hidden");
}
else
showhidediv("visible");
}
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);
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;
}



// FROM HERE IT IS THE BLEND SCRIPT
function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	//set the current image as background
	document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}