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//initialize
var t;
var n = 1;
var i = 1;
var nmax = 1;
var tmp = 0;
function getElem(obj) {
return(document.getElementById(obj));
}
function loading(obj) {
getElem("loading"+obj).style.display="none";
getElem("divPreload"+obj).style.height = getElem("height"+obj).value + "px";
getElem("btnPlay"+obj).disabled = false;
getElem("btnFirst"+obj).disabled = false;
getElem("btnLast"+obj).disabled = false;
getElem("btnMore"+obj).disabled = false;
}
// show the j-th frame
function showFrame(obj, num) {
var j=1;
nmax=parseInt(getElem("nmax"+obj).value);
for(j = 1; j <= nmax; j++){
getElem("divPreload" + obj + j).style.display = "none";
}
getElem("divPreload" + obj + num).style.display = "block";
}
// show more controls
function btnMore(obj) {
var showMorePar=getElem("morePar"+obj).style.display;
if(showMorePar=="")
{
getElem("morePar"+obj).style.display="block" ;
getElem("btnMore"+obj).value=" >< ";
}
else
{
if(showMorePar=="none")
{
getElem("morePar"+obj).style.display = "block";
getElem("btnMore"+obj).value=" >< ";
}
else
{
getElem("morePar"+obj).style.display = "none";
getElem("btnMore"+obj).value=" <> ";
}
}
}
// go to j-th frame
function txtFrame(num, obj) {
num=parseInt(num);
if (num>0 && num<=parseInt(getElem("nmax"+obj).value)) {
showFrame(obj, num);
eval("n"+obj+"="+num);
}
else {
alert("You must enter a positive integer between 1 and "+parseInt(getElem("nmax"+obj).value)+"!");
getElem("txtFrame"+obj).select();
}
}
function displayImage(obj) {
var txtInterval = getElem("txtInterval"+obj);
eval("var tm"+obj+" = Math.round(Number(txtInterval.value)*1000)");
eval("var tm=tm"+obj);
eval("nmax=nmax"+obj);
eval("n=n"+obj);
if (n > nmax) {
if (getElem("checkLoop"+obj).checked) {
n = 1;
eval("n"+obj+"=1");
displayImage(obj);
}
else {
pauseAni(obj);
}
}
else {
for(i = 1; i <= nmax; i++){
getElem("divPreload" +obj+ i).style.display = "none";
}
getElem("divPreload" +obj+ n).style.display = "block";
getElem("txtFrame"+obj).value = n ;
eval("t"+obj+" = setTimeout(\"displayImage(\\\"\"+obj+\"\\\")\", tm)");
eval("n"+obj+"++");
}
}
function playAni(obj) {
getElem("btnPlay"+obj).disabled = true;
getElem("btnPause"+obj).disabled = false;
getElem("btnFast"+obj).disabled = false;
getElem("btnSlow"+obj).disabled = false;
getElem("btnPrev"+obj).disabled = true;
getElem("btnNext"+obj).disabled = true;
getElem("btnFirst"+obj).disabled = true;
getElem("btnLast"+obj).disabled = true;
displayImage(obj);
}
function pauseAni(obj) {
eval("clearTimeout(t"+obj+")");
getElem("btnPlay"+obj).disabled = false;
getElem("btnPause"+obj).disabled = true;
getElem("btnFast"+obj).disabled = true;
getElem("btnSlow"+obj).disabled = true;
getElem("btnPrev"+obj).disabled = false;
getElem("btnNext"+obj).disabled = false;
getElem("btnFirst"+obj).disabled = false;
getElem("btnLast"+obj).disabled = false;
eval("n"+obj+"--");
eval("if (n"+obj+"<=0) n"+obj+"=1");
}
function fastAni(obj,step) {
var txtInterval = getElem("txtInterval"+obj);
txtInterval.value-=step*getElem("txtStep"+obj).value;
if (Number(txtInterval.value) < 0) {
txtInterval.value=0;
getElem("btnFast"+obj).disabled=true;
}
if (step==-1) getElem("btnFast"+obj).disabled=false;
}
function prevAni(obj,step) {
eval("n"+obj+"=n"+obj+"-1*"+step);
eval("tmpnum=n"+obj);
if (tmpnum<=0) {
getElem("btnPrev"+obj).disabled = true;
getElem("btnNext"+obj).disabled = false;
eval("n"+obj+"=1");
}
else if (tmpnum>parseInt(getElem("nmax"+obj).value)) {
getElem("btnPrev"+obj).disabled = false;
getElem("btnNext"+obj).disabled = true;
eval("n"+obj+"="+parseInt(getElem("nmax"+obj).value));
}
else {
eval("showFrame(\""+obj+"\", "+tmpnum+")");
getElem("txtFrame"+obj).value=tmpnum;
}
if (step==1) {
getElem("btnNext"+obj).disabled = false ;
}
else {
getElem("btnPrev"+obj).disabled = false ;
}
}
function firstAni(obj,step) {
if (step) {
showFrame(obj, 1);
getElem("txtFrame"+obj).value = 1;
eval("n"+obj+"=1");
getElem("btnNext"+obj).disabled = false ;
}
else {
showFrame(obj, parseInt(getElem("nmax"+obj).value));
getElem("txtFrame"+obj).value = parseInt(getElem("nmax"+obj).value);
eval("n"+obj+"=nmax"+obj);
getElem("btnPrev"+obj).disabled = false ;
}
}
function txtInterval(Obj) {
if (parseFloat(Obj.value)<0) {
Obj.value=0;
}
}
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