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图像特效

飞舞的蝙蝠

特效说明

几支蝙蝠在网页中乱飞。复制回去后将里面的bat1(2)(3).gif改为你的图片的位置

特

效

代

码

<script language="JavaScript1.2">

</script>
<script language="JavaScript1.2">
<!--
amount=6;
Xpos=300;
Ypos=200;
step=0.5;
dismissafter=100;

bats=new Array(ImgA.src,ImgB.src,ImgC.src,ImgD.src)
if (document.layers){
for (i=0; i < amount; i++)
{document.write("<LAYER NAME=n"+i+" LEFT=0 TOP=-50><IMG SRC='bat1.gif' NAME='nsi'></LAYER>")}
}
if (document.all)
{
document.write('<div id="out" style="position:absolute;top:0;left:0"><div id="in" style="position:relative">');
for (i=0; i < amount; i++)
{document.write('<img src="bat1.gif" id="msieBats"'+i+'  style="position:absolute;top:-50;left:0">')}
document.write('</div></div>');
}

yBase=0;
xBase=0;
currStep=0;
a_count=0;
b_count=1;
c_count=2;
d_count=3;
move=1;
if (document.layers){
yBase=window.innerHeight/3;
xBase=window.innerWidth/6;
window.captureEvents(Event.MOUSEMOVE);

}
if (document.all){
yBase = window.document.body.offsetHeight/3;
xBase = window.document.body.offsetWidth/6;
}

function dismissbat(){
clearInterval(flybat)
if (document.layers){
for (i2=0; i2 < amount; i2++){
document.layers['n'+i2].visibility="hide"
}
}
else if (document.all)
document.all.out.style.visibility="hidden"
}

function Animate(){
a_count+=move;
b_count+=move;
c_count+=move;
d_count+=move;
currStep+=step;
if (a_count >= bats.length) a_count=0;
if (b_count >= bats.length) b_count=0;
if (c_count >= bats.length) c_count=0;
if (d_count >= bats.length) d_count=0;
if (document.layers){
document.layers['n'+0].document.images['nsi'].src=bats[a_count];
document.layers['n'+1].document.images['nsi'].src=bats[b_count];
document.layers['n'+2].document.images['nsi'].src=bats[b_count];
if (amount > 2)
 {
 for (i=3; i < amount; i++)
  {document.layers['n'+i].document.images['nsi'].src=bats[d_count]}
 }
for (i=0; i < amount; i++)
 {
  var NewL="n"+i
  document.layers[NewL].top = Ypos+yBase*Math.sin(((currStep)+i*3.7)/4)*Math.cos((currStep+i*35)/10)
  document.layers[NewL].left =Xpos+xBase*Math.cos(((currStep)+i*3.7)/4)*Math.cos((currStep+i*35)/62)
  }
}
if (document.all){
document.all.msieBats[0].src=bats[a_count];
document.all.msieBats[1].src=bats[b_count];
document.all.msieBats[2].src=bats[c_count];
if (amount > 2)
 {
 for (i=3; i < amount; i++)
  {document.all.msieBats[i].src=bats[d_count]}
 }
for (i=0; i < amount; i++)
 {
  document.all.msieBats[i].style.pixelTop = Ypos+yBase*Math.sin(((currStep)+i*3.7)/4)*Math.cos((currStep+i*35)/10)
  document.all.msieBats[i].style.pixelLeft =Xpos+xBase*Math.cos(((currStep)+i*3.7)/4)*Math.cos((currStep+i*35)/62)
 }
}
}
flybat=setInterval('Animate()',30);
setTimeout("dismissbat()",dismissafter*1000)
//-->

</script>

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