if(!window.JSFX)
JSFX=new Object()
JSFX.ImageZoomRunning=false
JSFX.zoomOn=function(img,zoomStep,maxZoom){
if(img){
if(!zoomStep){
if(img.mode=="EXPAND")
zoomStep=img.height/10
else
zoomStep=img.width/10}
if(!maxZoom){
if(img.mode=="EXPAND")
maxZoom=img.height/2
else
maxZoom=img.width/2}
if(img.state==null){
img.state="OFF"
img.index=0
img.orgWidth=img.width
img.orgHeight=img.height
img.zoomStep=zoomStep
img.maxZoom=maxZoom}
if(img.state=="OFF"){
img.state="ZOOM_IN"
start_zooming()}
else if(img.state=="ZOOM_IN_OUT"
|| img.state=="ZOOM_OUT"){
img.state="ZOOM_IN"}}}
JSFX.zoomIn=function(img,zoomStep,maxZoom){
img.mode="ZOOM"
JSFX.zoomOn(img,zoomStep,maxZoom)}
JSFX.stretchIn=function(img,zoomStep,maxZoom){
img.mode="STRETCH"
JSFX.zoomOn(img,zoomStep,maxZoom)}
JSFX.expandIn=function(img,zoomStep,maxZoom){
img.mode="EXPAND"
JSFX.zoomOn(img,zoomStep,maxZoom)}
JSFX.zoomOut=function(img){
if(img){
if(img.state=="ON"){
img.state="ZOOM_OUT"
start_zooming()}
else if(img.state=="ZOOM_IN"){
img.state="ZOOM_IN_OUT"}}}
function start_zooming(){
if(!JSFX.ImageZoomRunning)
ImageZoomAnimation()}
JSFX.setZoom=function(img){
if(img.mode=="STRETCH"){
img.width=img.orgWidth+img.index
img.height=img.orgHeight}
else if(img.mode=="EXPAND"){
img.width=img.orgWidth
img.height=img.orgHeight+img.index}
else{
img.width=img.orgWidth+img.index
img.height=img.orgHeight+(img.index*(img.orgHeight/img.orgWidth))}}
function ImageZoomAnimation(){
JSFX.ImageZoomRunning=false
for(i=0;i<document.images.length;i++){
var img=document.images[i]
if(img.state){
if(img.state=="ZOOM_IN"){
img.index+=img.zoomStep
if(img.index>img.maxZoom)
img.index=img.maxZoom
JSFX.setZoom(img)
if(img.index==img.maxZoom)
img.state="ON"
else
JSFX.ImageZoomRunning=true}
else if(img.state=="ZOOM_IN_OUT"){
img.index+=img.zoomStep
if(img.index>img.maxZoom)
img.index=img.maxZoom
JSFX.setZoom(img)
if(img.index==img.maxZoom)
img.state="ZOOM_OUT"
JSFX.ImageZoomRunning=true}
else if(img.state=="ZOOM_OUT"){
img.index-=img.zoomStep
if(img.index<0)
img.index=0
JSFX.setZoom(img)
if(img.index==0)
img.state="OFF"
else
JSFX.ImageZoomRunning=true}}}
if(JSFX.ImageZoomRunning)
setTimeout("ImageZoomAnimation()",40)}