// JavaScript Document

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];}
}





NUMBER_OF_IMAGES = Images;
file_dir = "pictures/";

which_image_loaded = 0;


ImageNames = new Object();
ImageNames.length = NUMBER_OF_IMAGES - 1;

for (counter = 0; counter < NUMBER_OF_IMAGES; counter++){
    file_number = counter + 1;
    filename = (file_dir + file_number +'.jpg');
	ImageNames[counter] = filename;
}

function firstImage() {
    if (document.images)
        document.myimage.src = ImageNames[0];
		document.getElementById('back').style.visibility="hidden";
		}


function changeImage(direction) {
    which_image_loaded += direction;
    if (which_image_loaded < 0)
        which_image_loaded = NUMBER_OF_IMAGES - 1;
    if (which_image_loaded == NUMBER_OF_IMAGES)
        which_image_loaded = 0;
    if (document.images) {
        document.myimage.src = ImageNames[which_image_loaded];
		}

	if (which_image_loaded == 0)
			{
			document.getElementById('back').style.visibility="hidden";
			document.getElementById('forward').style.visibility="visible";
			}
	if (which_image_loaded > 0 & which_image_loaded < NUMBER_OF_IMAGES) {
			document.getElementById('back').style.visibility="visible";
			document.getElementById('forward').style.visibility="visible";
			}
	if (which_image_loaded == NUMBER_OF_IMAGES -1 )
			{
			document.getElementById('forward').style.visibility="hidden";
			document.getElementById('back').style.visibility="visible";
			}
	imageLbl();
}

function imageLbl() {

if (Hyper[which_image_loaded]) {
	document.getElementById('imagedesc').innerHTML = Hyper[which_image_loaded] + Desc[which_image_loaded] + "</a>";
	}
else {
document.getElementById('imagedesc').innerHTML = Desc[which_image_loaded];
}
			
		var desc_split = Desc[which_image_loaded].split("<");
		var desc_split2 = desc_split[1].split(">");
	
	document.myimage.title = desc_split[0] + " " + desc_split2[1];
	
}