//IIDj Summer Academy 2003, as 2003 06
//ALBUM

//----------------------------------------------------------------------
function getSlides() {
theIndex = 0;
theImageCount = ImageList.length;
}

function showSlides(theImageName,theDirection) {
if (theDirection == 1) {
theIndex++;
}
else if (theDirection == -1) {
theIndex--;
}
else {
showNewSlideGroup(theDirection);
}
theIndex = checkIndex(theIndex,theImageCount);
document.getElementsByName('DIARY')[0].src=ImageFolderPath+ImageList[theIndex];
}

function showNewSlideGroup(theDirection) {
var theRegEx = /[^\d]*/;
var theCurrentImagePrefix = theRegEx.exec(ImageList[theIndex])[0];
if (theDirection == 'N') {
// next group of images
if (theIndex == ImageList.length - 1) {
theIndex = 0;
}
else {
theIndex++;
var ImageListEnd = ImageList.slice(theIndex,ImageList.length);
var L = ImageListEnd.length;
for (var i=0;i<L;i++) {
if (theCurrentImagePrefix != theRegEx.exec(ImageListEnd[i])[0]) {
theIndex += (i);
break;
}
}
if (i == L) {
theIndex = 0;
}
}
}
else {
theIndex--;
var theRunningImagePrefix = theCurrentImagePrefix
// previous group of images
if (theIndex < 0) {
getFromEnd(theRegEx);
}
else {
var ImageListEnd = ImageList.slice(0,theIndex + 1);
var L = ImageListEnd.length - 1;
var theNewFlag = false;
for (var i=L;i>-1;i--) {
if (theRunningImagePrefix != theRegEx.exec(ImageListEnd[i])[0]) {
if (theNewFlag) {
break;
}
else {
theRunningImagePrefix = theRegEx.exec(ImageListEnd[i]);
theNewFlag = true;
}
}
}
if (theRunningImagePrefix == theCurrentImagePrefix) {
getFromEnd(theRegEx);
}
else {
theIndex = i + 1;
}
}
}
}



function getFromEnd(theRegEx) {
var L = ImageList.length - 1;
var theRunningImagePrefix = theRegEx.exec(ImageList[L]);
for (var i=L-1;i>-1;i--) {
if (theRunningImagePrefix != theRegEx.exec(ImageList[i])[0]) {
theIndex = i + 1;
break;
}
}
if (i < 0) {
theIndex = 0;
}
}


function checkIndex(theIndex,theImageCount){
if (theIndex == theImageCount){
return 0;
}
else if (theIndex < 0){
return theImageCount - 1;
}
return theIndex
}

//----------------------------------------------------------------------
function initLinkLabel(){
document.onmouseup=getMouseUp;
theActiveLabel=false;
}

function LinkLabel(theLabelName) {
this.Name=theLabelName;
this.Layer=document.getElementById(this.Name);
this.Text="";
this.visibility=false;
this.LayerStyle=this.Layer.style;
this.showLabel=showLabel;
this.hideLabel=hideLabel;
this.moveLabel=moveLabel;
return this;
}

function showLabel(theTITLE) {
theActiveLabel = this;
this.visibility=true;
this.Layer.innerHTML=(theTITLE+"");
theLabelDelay=setTimeout("this.activateLABEL()", 100);
}

function hideLabel() {
getMouseUp();
}

function activateLABEL() {
if (theActiveLabel.visibility) {
theActiveLabel.LayerStyle.visibility=visible;
}
}

function moveLabel(theLeft,theTop) {
this.LayerStyle.left=theLeft+"px";
this.LayerStyle.top=theTop + "px";
}

function getMouseMove(e) {
if (theActiveLabel) {
if (e.x) {
mouseX=event.x;
mouseY=event.y;
}
else if (e.pageX){
mouseX=e.pageX;
mouseY=e.pageY;
}

//if (IE5) {
//mouseX=mouseX+document.body.scrollLeft;
//mouseY=mouseY+document.body.scrollTop;
//}
theActiveLabel.moveLabel(mouseX+12,mouseY+4);
}
}

function getMouseUp(e) {
if(theActiveLabel){
clearTimeout(theLabelDelay);
theActiveLabel.LayerStyle.visibility=hidden;
theActiveLabel.visibility=false;
theActiveLabel=false;
}
}