function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function nextSlide(target, src) {
	target.src = slides[src++];
	target.style.width = widths[src++];
}

function scrollThumbs(direction) {
	if (direction == 'left') scrollayer('thumbNav',-10,10)
	else scrollayer('thumbNav',10,10)
}



//-----------------
// taken from
// http://www.quirksmode.org/js/layerscroll.html

// DHTML micro API
function getObj(name)
{
  if (document.getElementById)
  {
  	this.obj = document.getElementById(name);
	this.style = document.getElementById(name).style;
  }
  else if (document.all)
  {
	this.obj = document.all[name];
	this.style = document.all[name].style;
  }
  else if (document.layers)
  {
   	this.obj = document.layers[name];
   	this.style = document.layers[name];
  }
}

// scrolling
/*var clipTop = 0;
var clipWidth = 170;
var clipBottom = 10;
var topper = 300;
var lyrwidth = 0;
var time,amount,theTime,theHeight,DHTML;
*/

var clipLeft = 0;
var clipRight = 620;
var clipWidth = clipRight;
var clipTop = 0;
var clipBottom = 55;
var topper = 30;
var lyrwidth = 0;
var time,amount,theTime,theHeight,DHTML,arrowL,arrowR;


function init()
{
	DHTML = (document.getElementById || document.all || document.layers)
	if (!DHTML) return;
	var x = new getObj('thumbNav');
	arrowL = new getObj('arrowL');
	arrowR = new getObj('arrowR');
	if (document.layers)
	{
		lyrwidth = x.style.clip.right;
		lyrwidth += 20;
		x.style.clip.left = clipLeft;
		x.style.clip.top = 0;
		x.style.clip.right = clipWidth;
		x.style.clip.bottom = clipBottom;
	}
	else if (document.getElementById || document.all)
	{
		lyrwidth = x.obj.offsetWidth;
		x.style.clip = 'rect('+clipTop+'px,'+clipRight+'px,'+clipBottom+'px,'+clipLeft+'px)';
	}
	
	// initial position
	var hereOffset = document.getElementById("hereThumb").offsetLeft;
	//report ('hereOffset: ' + hereOffset + ", scrollAmount: " + (hereOffset-clipWidth/2));
	if (hereOffset >= clipWidth-100) scrollby(x, hereOffset-clipWidth/2);
	
	// visibility
	x.style.visibility = "visible";
	if (lyrwidth > clipRight) arrowR.style.visibility = "visible";
	
}

function scrollayer(layername,amt,tim)
{
	if (!DHTML) return;
	thelayer = new getObj(layername);
	if (!thelayer) return;
	amount = amt;
	theTime = tim;
	realscroll();
}

function realscroll()
{
	if (!DHTML) return;
	if (clipLeft+amount < 0) amount = clipLeft+amount;
	clipLeft += amount;
	clipRight += amount;
	topper -= amount;
	if (clipLeft < 0 || clipRight > lyrwidth+11)
	{
		clipLeft -= amount;
		clipRight -= amount;
		topper += amount;
		return;
	}
	if (document.getElementById || document.all)
	{
		clipstring = 'rect('+clipTop+'px,'+clipRight+'px,'+clipBottom+'px,'+clipLeft+'px)';
		thelayer.style.clip = clipstring;
		thelayer.style.left = topper + 'px';
	}
	else if (document.layers)
	{
		thelayer.style.clip.left = clipLeft;
		thelayer.style.clip.right = clipRight;
		thelayer.style.left = topper;
	}
	if (lyrwidth > clipRight) arrowR.style.visibility = "visible";
	else arrowR.style.visibility = "hidden";
	if (clipLeft > 0) arrowL.style.visibility = "visible";
	else arrowL.style.visibility = "hidden";
	time = setTimeout('realscroll()',theTime);
}

function scrollby(lyr, scrollAmount)
{
	if (!DHTML) return;
	if (scrollAmount+clipWidth > lyrwidth) scrollAmount = lyrwidth-clipWidth+10;
	clipLeft += scrollAmount;
	clipRight += scrollAmount;
	topper -= scrollAmount;
	//report ("topper: " + topper + ", lyrwidth: " + lyrwidth);
	if (clipLeft < 0 || clipRight > lyrwidth+10)
	{
		clipLeft -= scrollAmount;
		clipRight -= scrollAmount;
		topper += scrollAmount;
		return;
	}
	if (document.getElementById || document.all)
	{
		//report("l: " + clipLeft + ", r: " + clipRight + ", dif: " + (clipRight-clipLeft));
		clipstring = 'rect('+clipTop+'px,'+clipRight+'px,'+clipBottom+'px,'+clipLeft+'px)';
		lyr.style.clip = clipstring;
		lyr.style.left = topper + 'px';
	}
	else if (document.layers)
	{
		lyr.style.clip.left = clipLeft;
		lyr.style.clip.right = clipRight;
		lyr.style.left = topper;
	}
	if (lyrwidth > clipRight) arrowR.style.visibility = "visible";
	else arrowR.style.visibility = "hidden";
	if (clipLeft > 0) arrowL.style.visibility = "visible";
	else arrowL.style.visibility = "hidden";
}

function stopScroll()
{
	if (time) clearTimeout(time);
}

function report(str) {
	document.getElementById("report").innerHTML += str + "<br/>";
}