/***********************************************
 * 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 = 1;
//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 = '';

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;
}


function moveleft()
{
  clearTimeout(righttime);
  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 
    {
      if (autopilot) moveright();
      // showhidediv("visible");
      return;
    }
  }
  lefttime = setTimeout("moveleft()", 50);
}

function moveright()
{
  clearTimeout(lefttime);
  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 
    {
      if (autopilot) moveleft();
      // showhidediv("visible");
      return;
    }
  }
  righttime = setTimeout("moveright()", 50);
}

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 = 1; // (curposy - rightbound) / ((menuwidth - restarea) / 2) * maxspeed;
    clearTimeout(righttime);
    if (movestate != "left") moveleft();
  }
  else if (curposy < leftbound)
  {
    scrollspeed = 1; // = (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';

  }
  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;
}