/*
Flying Butterfly script (By BGAudioDr@aol.com)
Modified slightly/ permission granted to Dynamic Drive to feature script in archive
For full source, visit http://www.dynamicdrive.com
*/

var Ymax=4;                                //MAX # OF PIXEL STEPS IN THE "X" DIRECTION
var Xmax=4;                                //MAX # OF PIXEL STEPS IN THE "Y" DIRECTION
var Tmax=10000;                        //MAX # OF MILLISECONDS BETWEEN PARAMETER CHANGES
var Xpos=700;  //cupids x coordinates, in pixel      ---- nenaudojamas, veliau nustatytas i pirmos muses koord.
var Ypos=200;  //cupids y coordinates, in pixel      ---- nenaudojamas, veliau nustatytas i pirmos muses koord.
var step=0.1; //Animation speed (smaller is slower)
var show=true;

var hideaftermin=20000;
var hideaftermax=30000;

//FLOATING IMAGE URLS FOR EACH IMAGE. ADD OR DELETE ENTRIES. KEEP ELEMENT NUMERICAL ORDER STARTING WITH "0" !!

var floatimages=new Array();
for(i=0; i<"40"; i++){
floatimages[i]='fileadmin/templates/files/muse'+Math.ceil(Math.random()*4)+'.gif';
}

//*********DO NOT EDIT BELOW***********
var NS4 = (navigator.appName.indexOf("Netscape")>=0 && parseFloat(navigator.appVersion) >= 4 && parseFloat(navigator.appVersion) < 5)? true : false;
var IE4 = (document.all)? true : false;
var NS6 = (parseFloat(navigator.appVersion) >= 5 && navigator.appName.indexOf("Netscape")>=0 )? true: false;
var wind_w, wind_h, t='', IDs=new Array();
for(i=0; i<floatimages.length; i++){
t+=(NS4)?'<layer name="pic'+i+'" visibility="hide" width="10" height="10"><a href="javascript:hidebutterfly()">' : '<div id="pic'+i+'" style="position:absolute; visibility:hidden;width:10px; height:10px"><a href="javascript:hidebutterfly()">';
t+='<img src="'+floatimages[i]+'" name="p'+i+'" border="0">';
t+=(NS4)? '</a></layer>':'</a></div>';
}
document.write(t);

function moveimage(num){

if(num=='0'){
if(getidleft(num)+IDs[num].W+IDs[num].Xstep >= wind_w+getscrollx())IDs[num].Xdir=false;
if(getidleft(num)-IDs[num].Xstep<=getscrollx())IDs[num].Xdir=true;
if(getidtop(num)+IDs[num].H+IDs[num].Ystep >= wind_h+getscrolly())IDs[num].Ydir=false;
if(getidtop(num)-IDs[num].Ystep<=getscrolly())IDs[num].Ydir=true;
dx = (IDs[num].Xdir)? IDs[num].Xstep:-IDs[num].Xstep
dy = (IDs[num].Ydir)? IDs[num].Ystep:-IDs[num].Ystep
Xpos=getidleft(num)+dx;
Ypos=getidtop(num)+dy;
moveidby(num, dx , dy );
}else{

//xBase=5;
//yBase=5;
IDs[num].currStep +=step;
///alert(IDs[num].currStep);
newx=(Xpos+IDs[num].xBase*Math.cos(((IDs[num].currStep)+num*3.7)/4)*Math.cos((IDs[num].currStep+num*35)/62));
newy=(Ypos+IDs[num].yBase*Math.sin(((IDs[num].currStep)+num*3.7)/4)*Math.cos((IDs[num].currStep+num*35)/10));
newx=getidleft(num)+(newx-getidleft(num))*2/3;
newy=getidtop(num)+(newy-getidtop(num))*2/3;
//alert(dx);
if(newx+IDs[num].W >= wind_w+getscrollx())newx= wind_w+getscrollx()-IDs[num].W;
if(newx <=getscrollx())newx=getscrollx();
if(newy+IDs[num].H >= wind_h+getscrolly())newy= wind_h+getscrolly()-IDs[num].H;
if(newy<=getscrolly())newy=getscrolly();
moveidto(num, newx, newy);
}
}

function getnewprops(num){
IDs[num].Ydir=Math.floor(Math.random()*2)>0;
IDs[num].Xdir=Math.floor(Math.random()*2)>0;
IDs[num].Ystep=Math.ceil(Math.random()*Ymax);
IDs[num].Xstep=Math.ceil(Math.random()*Xmax);
IDs[num].xBase=wind_w/20*(Math.random()*2+1);
IDs[num].yBase=wind_h/20*(Math.random()*2+1);
if (show) setTimeout('getnewprops('+num+')', Math.floor(Math.random()*Tmax));
}

function getscrollx(){
if(NS4 || NS6)return window.pageXOffset;
if(IE4)return document.body.scrollLeft;
}

function getscrolly(){
if(NS4 || NS6)return window.pageYOffset;
if(IE4)return document.body.scrollTop;
}

function getid(name){
if(NS4)return document.layers[name];
if(IE4)return document.all[name];
if(NS6)return document.getElementById(name);
}

function moveidto(num,x,y){
if(NS4)IDs[num].moveTo(x,y);
if(IE4 || NS6){
IDs[num].style.left=x+'px';
IDs[num].style.top=y+'px';
}}

function getidleft(num){
if(NS4)return IDs[num].left;
if(IE4 || NS6)return parseInt(IDs[num].style.left);
}

function getidtop(num){
if(NS4)return IDs[num].top;
if(IE4 || NS6)return parseInt(IDs[num].style.top);
}

function moveidby(num,dx,dy){
if(NS4)IDs[num].moveBy(dx, dy);
if(IE4 || NS6){
IDs[num].style.left=(getidleft(num)+dx)+'px';
IDs[num].style.top=(getidtop(num)+dy)+'px';
}}

function getwindowwidth(){
if(NS4 || NS6)return window.innerWidth;
if(IE4)return document.body.clientWidth;
}

function getwindowheight(){
if(NS4 || NS6)return window.innerHeight;
if(IE4)return document.body.clientHeight;
}

function init(){
wind_w=getwindowwidth();
wind_h=getwindowheight();
for(i=0; i<floatimages.length; i++){
IDs[i]=getid('pic'+i);
if(NS4){
IDs[i].W=IDs[i].document.images["p"+i].width;
IDs[i].H=IDs[i].document.images["p"+i].height;
}
if(NS6 || IE4){
IDs[i].W=document.images["p"+i].width;
IDs[i].H=document.images["p"+i].height;
}
IDs[i].currStep=0;
getnewprops(i);
moveidto(i , Math.floor(Math.random()*(wind_w-IDs[i].W)), Math.floor(Math.random()*(wind_h-IDs[i].H)));
if(NS4)IDs[i].visibility = "show";
if(IE4 || NS6)IDs[i].style.visibility = "visible";
eval("startfly"+i+"=setInterval('moveimage('+i+')',Math.floor(Math.random()*100)+100)");
setTimeout('hideone('+i+')', Math.floor(Math.random()*(hideaftermax-hideaftermin)+hideaftermin));

}}

function hideone(num){
if (IE4)
eval("document.all.pic"+num+".style.visibility='hidden'")
else if (NS6)
document.getElementById("pic"+num).style.visibility='hidden'
else if (NS4)
eval("document.pic"+num+".visibility='hide'")
eval("clearInterval(startfly"+num+")");
}

function hidebutterfly(){
show=false;
for(i=0; i<floatimages.length; i++){
hideone(i);
}
}

if (NS4||NS6||IE4){
window.onload=init;
window.onresize=function(){ wind_w=getwindowwidth(); wind_h=getwindowheight(); }
}