var timerTick=1000; // interval of tick calls
// helper functions
function MessageWindow(sender, message)
{
var msgWindow;
if(msgWindow==null)
{
msgWindow=window.open("","MessageWindow","menubar=no, scrollbars=yes, status=yes, width=500, height=200, resizable")
msgWindow.document.write("MessageWindow")
}
msgWindow.document.write(sender+" -> "+message+"
");
msgWindow.scroll(0, 2000);
msgWindow.focus();
}
function FindObj(n, doc)
{
if(!doc)
doc=document;
var x=doc[n];
if(!x && document.all)
x=document.all[n];
for(var i=0; !x && i57))
{
val=val.substring(0,i);
return val;
}
}
return val;
}
function FileName(path)
{ // finds file name in complete path
var pos=path.lastIndexOf('\\');
var fn=path;
if(pos>0)
fn=path.substring(pos+1);
pos=fn.lastIndexOf('/');
if(pos>0)
return fn.substring(pos+1);
return fn;
}
function DirName(path)
{ // finds derectory name in complete path
return path.substring(0, path.length-FileName(path).length-1);
}
function ReadableFileName(path)
{ // file name without extension and '_' replaced by ' '
var fn = FileName(path);
var pos=fn.lastIndexOf('.');
if(pos>0)
fn=fn.substring(0, pos);
return fn.replace(/_/g, " ");
}
function FileNameWithoutExtension(path)
{ // finds file name without extension in complete path
var n=FileName(path);
var pos=n.lastIndexOf(".");
if(pos>0)
return n.substring(0, pos);
return n;
}
function FileExtension(path)
{ // finds file extension in complete path
var pos=path.lastIndexOf(".");
if(pos>0)
return path.substring(pos);
return "";
}
function TimeTick()
{ // calls OnTick each timerTick
setInterval("OnTick()", timerTick);
}
// slide show for pages containing both slide host and previews
function OnLoadPageWithSlides(slideInd, sizeFraction, maxSize, heightSelector)
{
slideHostDocument=document;
SetSlideShowFields(sizeFraction, maxSize, heightSelector);
OnLoadPreviewPage(slideInd);
}
// slide show host class (functions cslled from show host page)
function SetSlideShowFields(sizeFraction, maxSize, heightSelector)
{ // called from within slide host; sets width of slide show to a fraction (width - %) of document width
SetNodeSize(slideHostParentNode, sizeFraction, maxSize, heightSelector);
ScaleSlide();
}
function SetNodeSize(nodeName, sizeFraction, maxSize, heightSelector)
{ // sets node width to a fraction of document width, %
var element=Element(nodeName);
if(element==null)
return;
var docwidth, docheight;
if(document.body.clientWidth)
{ // IE
docwidth = document.body.clientWidth;
docheight = document.body.clientHeight;
}
if (window.innerWidth)
{ //opera Netscape 6 Netscape 4x Mozilla
docwidth = window.innerWidth;
docheight = window.innerHeight;
}
var w=docwidth*sizeFraction/100;
if(maxSize && w>maxSize)
w=maxSize;
element.style.width=w;
if(heightSelector==null)
heightSelector=0; // if heightSelector >0 it is treated as height/width ratio in %
if(heightSelector && heightSelector>0) // ratio 75 fits 4:3 slideImages; 67 fits 3:2 slideImages
element.style.height=ToNumber(element.style.width)*heightSelector/100;
else // height limited by doc height
{
var h=docheight*sizeFraction/100+heightSelector;
if(maxSize && h>maxSize)
h=maxSize;
element.style.height=h;
}
}
function ScaleImage(callerName)
{ // reduces image of the caller element to fit parent element dimensions
var caller=Element(callerName);
if(caller==null || caller.src==null || caller.src.length==0)
return -1;
var par=caller.parentNode;
if(par==null || par.style==null)
return -1;
var w=ToNumber(par.style.width);
var h=ToNumber(par.style.height);
caller.style.visibility='hidden';
var im=new Image();
im.src = caller.src;
var zoomX=w/im.width;
var zoomY=h/im.height;
var scale=1;
if(scale>zoomX)
scale=zoomX;
if(scale>zoomY)
scale=zoomY;
caller.width=scale*im.width;
//caller.height=scale*im.height;
caller.style.visibility='visible';
return caller.width;
}
function ScaleSlide()
{ // called by onload event of slide show node (from LoadSlideImage)
var w=ScaleImage(slideHostNode);
if(w<0)
return;
var captionElement=Element(slideHostCaptionNode);
if(captionElement!=null)
captionElement.style.width=w+4; // 4 to account for border width
}
// slide show preview class (functions cslled from show preview page)
var slideHostDocument;
var slideHostNode='slideShow';
var slideHostParentNode='slideShow_holder';
var slideHostCaptionNode='slideShow_caption';
var lastSelectedImg=null; // last selected img to support hover delay
var slideDirection=1; // 1 - forward; -1 - backward
var slideIndex=-1; // indes of current slide in the show
var imageArrayIndex=0; // slide show index
var slideTimeLeft=0; // number of milliseconds left till next slide
var singleImageTime=15000; // time to show single image before switching
var slidePeriod=singleImageTime;// initial period of slide show
var hoverDelay=1500; // delay in ms before hover activates image
var previewArray=new Array(); // list of images on preview page
var previewElementPrefix="el_";
var previewSuffix=""; // suffix of preview image name
function LoadSlideHost(imageArrayIndex, slideIndex, imgName) { return document; }
function IsSlideHostOpened()
{
if(slideHostDocument==null)
return false;
try
{
var el=slideHostDocument.getElementById(slideHostNode);
if(el==null)
return false; // checks if correct page displayed in slide host window
var slideWindow=slideHostDocument.parentWindow;
return slideWindow!=null && !slideWindow.closed; // checks if slide host window opened
}
catch(ex)
{
slideHostDocument=null;
return false;
}
}
function OnLoadPreviewPage(slideInd)
{ // pages with slide previews start timer and specify initial slide show index
setTimeout("LoadPreviews()", 500);
imageArrayIndex=slideInd;
TimeTick();
}
function LoadPreviews()
{
for(var i=0; i0)
elName=elName.replace(previewSuffix, "");
var el=Element(elName);
if(el) { el.src=fileName; }
}
}
function SetSingleImage(imgName)
{ // sets slide show parameters from the single image name
if(!slideImagesArray)
return;
var dname=DirName(imgName);
imageArrayIndex=-1;
for(var i=0; i0 && DirName(slideImagesArray[i][0])==dname)
{
imageArrayIndex=i;
break;
}
if(imageArrayIndex>=0)
{
var fname=FileName(imgName);
var slideImages=slideImagesArray[imageArrayIndex];
slideIndex=-1;
for(i=0; i";
return true;
}
catch(ex1) { return false; }
}
function OnTick()
{ // called by timer each timer tick
slideTimeLeft-=timerTick;
if(slideTimeLeft>=0)
return;
slideTimeLeft=slidePeriod;
ShowNextSlide();
}
function ShowNextSlide()
{ // finds next file of the slide show and show it
if(imageArrayIndex<0 || imageArrayIndex>=slideImagesArray.length)
return;
if(!IsSlideHostOpened())
return;
var slideImages=slideImagesArray[imageArrayIndex];
slideIndex+=slideDirection;
if(slideDirection<0)
slideDirection=1;
if(slideIndex>=slideImages.length)
slideIndex-=slideImages.length;
if(slideIndex<0)
slideIndex+=slideImages.length;
var dir=DirName(slideImages[0]);
var imageName=dir+'/'+FileName(slideImages[slideIndex]);
LoadSlideImage(imageName, false);
}
function RunSlides(imageArrayInd, period)
{
if(imageArrayInd<0 || imageArrayInd>=slideImagesArray.length)
return;
imageArrayIndex=imageArrayInd;
var slideImages=slideImagesArray[imageArrayIndex];
if(slideImages.length<=0)
return;
slideDirection=1;
slidePeriod=period;
slideTimeLeft=slidePeriod;
slideIndex=0;
if(IsSlideHostOpened())
LoadSlideImage(slideImages[slideIndex], true);
else
slideHostDocument=LoadSlideHost(imageArrayIndex, slideIndex, slideImages[slideIndex]);
}
function SetSlidePeriod(period) { slideTimeLeft=period; slidePeriod=period; }
function ForwardSlides() { slideDirection=1; slideTimeLeft=0; }
function BackwardSlides() { slideDirection=-1; slideTimeLeft=0; }
function HighBorder(name)
{
var el=Element(name);
if(el) { el.className="activeImghover"; }
}
function NormalBorder(name)
{
var el=Element(name);
if(el) { el.className="activeImg"; }
}
function PreviewImage(path, location, height, previewSuffix_, previewSubdir)
{ // writes preview image with click and hover capabilities
previewSuffix=previewSuffix_;
var name=FileNameWithoutExtension(path);
var ext=FileExtension(path);
var elName=previewElementPrefix+name; // preview image element name
var pn=previewSuffix ? name+previewSuffix : name; // preview image name
var imageName=location+"/"+name+ext;
var previewImageDir=previewSubdir ? location+"/"+previewSubdir : location;
previewArray.push(previewImageDir+"/"+pn+ext);
return "!["+name+
"]()
";
}