function hideAll(){
	// alert('entering hideAll');
	for(i = 0; i < pageArray.length; i++){
		//alert('hiding ' + pageArray[i]);
		hideTable(pageArray[i]);
	}
	// alert('exiting hideAll');
}

function showHideArrows(){
	//alert('checking for nextImage');
	//alert(currentImageIndex + 1);
	//alert(imageArray.length);
	if(currentImageIndex + 1 < imageArray.length){
		//document.getElementById('nextImage').style.display='block';
		FP_swapImg(1,0,/*id*/'nextImage',/*url*/'./images/nextarrow.gif');
		
	} else{
		//document.getElementById('nextImage').style.display='none';
		FP_swapImg(1,0,/*id*/'nextImage',/*url*/'./images/nextarrow_dis.gif');
	}
	// alert('checking for previousImage');
	if(currentImageIndex > 0){
		//document.getElementById('prevImage').style.display='block';
		FP_swapImg(1,0,/*id*/'prevImage',/*url*/'./images/backarrow.gif');
	} else {
		//document.getElementById('prevImage').style.display='none';
		FP_swapImg(1,0,/*id*/'prevImage',/*url*/'./images/backarrow_dis.gif');
	}
	// alert('checking for nextPage');
	if(currentPageIndex + 1 < pageArray.length){
		//document.getElementById('nextPage').style.display='block';
		FP_swapImg(1,0,/*id*/'nextPage',/*url*/'./images/nextarrow1.gif');
	} else{
		//document.getElementById('nextPage').style.display='none';
		FP_swapImg(1,0,/*id*/'nextPage',/*url*/'./images/nextarrow1_dis.gif');
	}
	// alert('checking for previousPage');
	if(currentPageIndex > 0){
		//document.getElementById('previousPage').style.display='block';
		FP_swapImg(1,0,/*id*/'previousPage',/*url*/'./images/backarrow1.gif');
	} else {
		//document.getElementById('previousPage').style.display='none';
		FP_swapImg(1,0,/*id*/'previousPage',/*url*/'./images/backarrow1_dis.gif');
	}
}

function showNextPage(){
	// alert('entering showNextPage');
	if(currentPageIndex + 1 < pageArray.length){
		hideTable(pageArray[currentPageIndex]);
		currentPageIndex++;
		showTable(pageArray[currentPageIndex]);
		hideBorder();
		currentImageIndex = pageSize * currentPageIndex;
		showImageAt(currentImageIndex);
		showBorder();
	}
	// alert('exiting showNextPage');
}

function showPreviousPage(showLastImage){
	if(currentPageIndex > 0){
		hideTable(pageArray[currentPageIndex]);
		currentPageIndex--;
		showTable(pageArray[currentPageIndex]);
		hideBorder();
		if(showLastImage) {
			currentImageIndex--;
		} else{
			currentImageIndex = pageSize * currentPageIndex;
		}
		showImageAt(currentImageIndex);
		showBorder();
	}
}

function showNextImage(){
	//alert("entering showNextImage");
	if(currentImageIndex + 1 < imageArray.length){
		//alert("This is not the last image");
		if(isOnLastImageOnThePage()){
			//alert("calling showNextPage()");
			showNextPage();
		} else {
			hideBorder();
			showImageAt(++currentImageIndex);
			showBorder();
		}
	}
	//alert("exiting showNextImage");
}

function isOnLastImageOnThePage(){
	// alert("((currentImageIndex + 1) % pageSize) == " + ((currentImageIndex + 1) % pageSize));
	return (((currentImageIndex + 1) % pageSize) == 0);
}

function showPreviousImage(){
	//alert("entering showPreviousImage");
	if(currentImageIndex > 0){
		//alert("This is not the first image");
		if(isOnFirstImageOnThePage()){
			//alert("calling showPreviousPage()");
			showPreviousPage(true);
		} else{
			hideBorder();
			showImageAt(--currentImageIndex);
			showBorder();
		}
	}
}

function isOnFirstImageOnThePage(){
	return ((currentImageIndex % pageSize) == 0);
}

function showImageAt(index){
	// alert('entering showImageAt');
	currentImageIndex = index;
	FP_swapImg(1,0,/*id*/'img1',/*url*/imagePrefix + imageArray[index]);
	showTextAt();
	showHideArrows();
	//alert('exiting showImageAt');
}

function showTextAt(){
	//alert(currentImageIndex);
	//alert(textArray[currentImageIndex]);
	document.getElementById('textspan').innerHTML = textArray[currentImageIndex];
}

function hideBorder(){
	// change style to hide border
	// alert("hiding border");
	document.getElementById('thumb'+currentImageIndex).style.border="";
}

function showBorder(){
	// change style to show border
	document.getElementById('thumb'+currentImageIndex).style.border='5px solid black';
}

function hideTable(id) {
	// alert('entering hideTable');
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
	// alert('exiting hideTable');
}

function showTable(id) {
	//safe function to show an element with a specified id

	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}

function FP_swapImgRestore() {//v1.0
 var doc=document,i; if(doc.$imgSwaps) { for(i=0;i<doc.$imgSwaps.length;i++) {
  var elm=doc.$imgSwaps[i]; if(elm) { elm.src=elm.$src; elm.$src=null; } }
  doc.$imgSwaps=null; }
}

function FP_swapImg() {//v1.0
	var doc=document,args=arguments,elm,n;
	doc.$imgSwaps=new Array();
	for(n=2; n<args.length;n+=2) {
		elm=FP_getObjectByID(args[n]);
		if(elm) {
			doc.$imgSwaps[doc.$imgSwaps.length]=elm;
			elm.$src=elm.src;
			elm.src=args[n+1];
		}
	}
}

function FP_preloadImgs() {//v1.0
	var d=document,a=arguments;
	if(!d.FP_imgs) d.FP_imgs=new Array();
	for(var i=0; i<a.length; i++) {
		d.FP_imgs[i]=new Image;
		d.FP_imgs[i].src=a[i];
	}
}

function FP_getObjectByID(id,o) {//v1.0
 var c,el,els,f,m,n; if(!o)o=document; if(o.getElementById) el=o.getElementById(id);
 else if(o.layers) c=o.layers; else if(o.all) el=o.all[id]; if(el) return el;
 if(o.id==id || o.name==id) return o; if(o.childNodes) c=o.childNodes; if(c)
 for(n=0; n<c.length; n++) { el=FP_getObjectByID(id,c[n]); if(el) return el; }
 f=o.forms; if(f) for(n=0; n<f.length; n++) { els=f[n].elements;
 for(m=0; m<els.length; m++){ el=FP_getObjectByID(id,els[n]); if(el) return el; } }
 return null;
}

function MM_preloadImages() { //v3.0
  // alert("MM_preloadImages start.............");
  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];}}
  // alert("MM_preloadImages complete...........");
}

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_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];}
}