Javascript网页特效：闪现的礼花背景(2)

document.layers[templayer].left = Mleft yBase*Math.cos((currStep j*5)/3)*Math.sin(550 currStep/100)
}
}
currStep = step;
T=setTimeout("Fireworks()",5);
if (currStep == 220) {
currStep = -10;
for (n = 0; n < sClrs.length; n ) {
var k = Math.round(Math.random()*n);
}
initialStarColor = sClrs[k];
if (document.all) {
Dtop = window.document.body.clientHeight - 250;
Dleft = xBase * 3.5;
Mtop = Math.round(Math.random()*Dtop);
Mleft = Math.round(Math.random()*Dleft);
document.all.starsDiv.style.top = Mtop document.body.scrollTop;
document.all.starsDiv.style.left = Mleft document.body.scrollLeft;
}
else if (document.layers) {
Dleft = window.innerWidth - 100;
Dtop = window.innerHeight - 100;
Mtop = Math.round(Math.random()*Dtop window.pageYOffset);
Mleft = Math.round(Math.random()*Dleft window.pageXOffset);
document.layers[templayer].top = Mtop;
document.layers[templayer].left = Mleft;
}
if ((Mtop < 20) || (Mleft < 20)) {
Mtop = 90;
Mleft = 90;
}
}
}
Fireworks();
// End -->
</script>

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