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Pillangó
<DIV id=dot0
style="LEFT: 0px; VISIBILITY: hidden; WIDTH: 20px;
POSITION: absolute; TOP: 0px; HEIGHT: 20px"><IMG
height=20
src=" http://traumne.uw.hu/Violet_butterfly_2.gif"
width=20> </DIV>
<DIV id=dot1
style="LEFT: 0px; WIDTH:
20px; POSITION: absolute; TOP: 29px; HEIGHT: 20px"><IMG
height=20
src="http://traumne.uw.hu/Violet_butterfly_2.gif"
width=20> </DIV>
<DIV id=dot2
style="LEFT: 0px; WIDTH:
20px; POSITION: absolute; TOP: 57px; HEIGHT: 20px"><IMG
height=20
src="http://traumne.uw.hu/Violet_butterfly_2.gif"
width=20> </DIV>
<DIV id=dot3
style="LEFT: 0px; WIDTH:
20px; POSITION: absolute; TOP: 75px; HEIGHT: 20px"><IMG
height=20
src="http://traumne.uw.hu/Violet_butterfly_2.gif"
width=20> </DIV>
<DIV id=dot4
style="LEFT: 0px; WIDTH:
20px; POSITION: absolute; TOP: 95px; HEIGHT: 20px"><IMG
height=20
src="http://traumne.uw.hu/Violet_butterfly_2.gif"
width=20> </DIV>
<DIV id=dot5
style="LEFT: 0px; WIDTH:
20px; POSITION: absolute; TOP: 97px; HEIGHT: 20px"><IMG
height=20
src="http://traumne.uw.hu/Violet_butterfly_2.gif"
width=20> </DIV>
<DIV id=dot6
style="LEFT: 0px; WIDTH:
20px; POSITION: absolute; TOP: 97px; HEIGHT: 20px"><IMG
height=20
src="http://traumne.uw.hu/Violet_butterfly_2.gif"
width=20> </DIV>
<SCRIPT language=JavaScript>
<!--
hide code
/*
Elastic Trail script (By Philip Winston @ pwinston@yahoo.com, URL:
http://www.geocities.com/pwinston/)
Script featured on
Dynamicdrive.com
For this and 100's more DHTML scripts, visit http://dynamicdrive.com
*/
var nDots = 7;
var Xpos = 0;
var Ypos = 0;
// fixed time step, no relation to real time
var DELTAT = .01;
// size
of one spring in pixels
var SEGLEN = 10;
// spring constant, stiffness of
springs
var SPRINGK = 10;
// all the physics is bogus, just picked stuff
to
// make it look okay
var MASS = 1;
// Positive XGRAVITY pulls right,
negative pulls left
// Positive YGRAVITY pulls down, negative up
var
XGRAVITY = 0;
var YGRAVITY = 50;
// RESISTANCE determines a slowing force
proportional to velocity
var RESISTANCE = 10;
// stopping criterea to
prevent endless jittering
// doesn't work when sitting on bottom since
floor
// doesn't push back so acceleration always as big
// as
gravity
var STOPVEL = 0.1;
var STOPACC = 0.1;
var DOTSIZE = 11;
//
BOUNCE is percent of velocity retained when
// bouncing off a wall
var
BOUNCE = 0.75;
var isNetscape = navigator.appName=="Netscape";
// always on for now, could be played with to
// let dots fall to botton,
get thrown, etc.
var followmouse = true;
var dots = new Array();
init();
function init()
{
var i = 0;
for (i = 0; i < nDots; i++)
{
dots[i] = new dot(i);
}
if (!isNetscape) {
// I only know how
to read the locations of the
// <LI> items in IE
//skip this for
now
// setInitPositions(dots)
}
// set their positions
for (i =
0; i < nDots; i++) {
dots[i].obj.left = dots[i].X;
dots[i].obj.top =
dots[i].Y;
}
if (isNetscape) {
// start right away since they
are positioned
// at 0, 0
startanimate();
} else {
// let dots sit
there for a few seconds
// since they're hiding on the real
bullets
setTimeout("startanimate()", 1000);
}
}
function dot(i)
{
this.X = Xpos;
this.Y = Ypos;
this.dx =
0;
this.dy = 0;
if (isNetscape) {
this.obj = eval("document.dot" +
i);
} else {
this.obj = eval("dot" + i + ".style");
}
}
function
startanimate() {
setInterval("animate()", 20);
}
// This is to line up the bullets with actual LI tags
on the page
// Had to add -DOTSIZE to X and 2*DOTSIZE to Y for IE 5, not sure
why
// Still doesn't work great
function setInitPositions(dots)
{
//
initialize dot positions to be on top
// of the bullets in the
<ul>
var startloc = document.all.tags("LI");
var i = 0;
for (i =
0; i < startloc.length && i < (nDots - 1); i++) {
dots[i+1].X =
startloc[i].offsetLeft
startloc[i].offsetParent.offsetLeft -
DOTSIZE;
dots[i+1].Y = startloc[i].offsetTop
+
startloc[i].offsetParent.offsetTop + 2*DOTSIZE;
}
// put 0th dot
above 1st (it is hidden)
dots[0].X = dots[1].X;
dots[0].Y = dots[1].Y -
SEGLEN;
}
// just save mouse position for animate() to use
function
MoveHandler(e)
{
Xpos = e.pageX;
Ypos = e.pageY;
return
true;
}
// just save mouse position for animate() to use
function MoveHandlerIE()
{
Xpos = window.event.x + document.body.scrollLeft;
Ypos = window.event.y
+ document.body.scrollTop;
}
if (isNetscape)
{
document.captureEvents(Event.MOUSEMOVE);
document.onMouseMove =
MoveHandler;
} else {
document.onmousemove =
MoveHandlerIE;
}
function vec(X, Y)
{
this.X = X;
this.Y =
Y;
}
// adds force in X and Y to spring for dot[i] on dot[j]
function
springForce(i, j, spring)
{
var dx = (dots[i].X - dots[j].X);
var dy =
(dots[i].Y - dots[j].Y);
var len = Math.sqrt(dx*dx + dy*dy);
if (len >
SEGLEN) {
var springF = SPRINGK * (len - SEGLEN);
spring.X += (dx / len) *
springF;
spring.Y += (dy / len) * springF;
}
}
function animate() {
// dots[0] follows the
mouse,
// though no dot is drawn there
var start = 0;
if (followmouse)
{
dots[0].X = Xpos;
dots[0].Y = Ypos;
start = 1;
}
for (i =
start ; i < nDots; i++ ) {
var spring = new vec(0, 0);
if (i >
0) {
springForce(i-1, i, spring);
}
if (i < (nDots - 1))
{
springForce(i+1, i, spring);
}
// air resisitance/friction
var
resist = new vec(-dots[i].dx * RESISTANCE,
-dots[i].dy *
RESISTANCE);
// compute new accel, including gravity
var accel = new
vec((spring.X + resist.X)/MASS + XGRAVITY,
(spring.Y + resist.Y)/ MASS +
YGRAVITY);
// compute new velocity
dots[i].dx += (DELTAT *
accel.X);
dots[i].dy += (DELTAT * accel.Y);
// stop dead so it doesn't
jitter when nearly still
if (Math.abs(dots[i].dx) < STOPVEL
&&
Math.abs(dots[i].dy) < STOPVEL &&
Math.abs(accel.X)
< STOPACC &&
Math.abs(accel.Y) < STOPACC) {
dots[i].dx =
0;
dots[i].dy = 0;
}
// move to new position
dots[i].X +=
dots[i].dx;
dots[i].Y += dots[i].dy;
// get size of window
var
height, width;
if (isNetscape) {
height = window.innerHeight +
window.pageYOffset;
width = window.innerWidth + window.pageXOffset;
} else
{
height = document.body.clientHeight + document.body.scrollTop;
width =
document.body.clientWidth + document.body.scrollLeft;
}
// bounce off
3 walls (leave ceiling open)
if (dots[i].Y >= height - DOTSIZE - 1)
{
if (dots[i].dy > 0) {
dots[i].dy = BOUNCE *
-dots[i].dy;
}
dots[i].Y = height - DOTSIZE - 1;
}
if (dots[i].X
>= width - DOTSIZE) {
if (dots[i].dx > 0) {
dots[i].dx = BOUNCE *
-dots[i].dx;
}
dots[i].X = width - DOTSIZE - 1;
}
if (dots[i].X <
0) {
if (dots[i].dx < 0) {
dots[i].dx = BOUNCE *
-dots[i].dx;
}
dots[i].X = 0;
}
// move img to new
position
dots[i].obj.left = dots[i].X;
dots[i].obj.top = dots[i].Y;
}
}
// end code hiding -->
</SCRIPT>
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AJÁNLOM AZ OLDALT
A film leírások egyre és egyre csak bővülnek!!
