Lessons III : Hiệu ứng làm nền web trông như Vũ Trụ

Hiệu ứng làm nền web trông như Vũ Trụ


Hiệu ứng này giúp trang web của bạn trông như một vũ trụ bao la, với muôn ngàn ngôi sao:

Paste code này ngay sau tag <body>:

PHP Code:

<BODY BGCOLOR=”#000000″ onLoad=”fly()”>

Paste code này tiếp theo sau tag <body>: ( Các bạn nhấp chuột phải xem phần “View Source” sẽ thấy rõ )

PHP Code:

<SCRIPT LANGUAGE=”JavaScript”>
<!– Begin
SmallStars = 30;
LargeStars = 10;
SmallYpos = new Array();
SmallXpos = new Array();
LargeYpos = new Array();
LargeXpos = new Array();
Smallspeed= new Array();
Largespeed= new Array();
ns=(document.layers)?1:0;
if (ns) {
for (i = 0; i < SmallStars; i++) {
document.write(“<LAYER NAME=’sn”+i+”‘ LEFT=0 TOP=0 BGCOLOR=’#FFFFF0′ CLIP=’0,0,1,1’></LAYER>”);
}
for (i = 0; i < LargeStars; i++) {
document.write(“<LAYER NAME=’ln”+i+”‘ LEFT=0 TOP=0 BGCOLOR=’#FFFFFF’ CLIP=’0,0,2,2′></LAYER>”);
}
}
else {
document.write(‘<div style=”position:absolute;top:0px;left:0px”>’);
document.write(‘<div style=”position:relative”>’);
for (i = 0; i < SmallStars; i++) {
document.write(‘<div id=”si” style=”position:absolute;top:0;left:0;width:1px;he ight:1px;background:#fffff0;font-size:1px”></div>’);
}
document.write(‘</div>’);
document.write(‘</div>’);
document.write(‘<div style=”position:absolute;top:0px;left:0px”>’);
document.write(‘<div style=”position:relative”>’);
for (i = 0; i < LargeStars; i++) {
document.write(‘<div id=”li” style=”position:absolute;top:0;left:0;width:2px;he ight:2px;background:#ffffff;font-size:2px”></div>’);
}
document.write(‘</div>’);
document.write(‘</div>’);
}
WinHeight = (document.layers)?window.innerHeight:window.docume nt.body.clientHeight;
WinWidth = (document.layers)?window.innerWidth:window.documen t.body.clientWidth;
for (i = 0; i < SmallStars; i++) {
SmallYpos[i] = Math.round(Math.random() * WinHeight);
SmallXpos[i] = Math.round(Math.random() * WinWidth);
Smallspeed[i]= Math.random() * 5 + 1;
}
for (i = 0; i < LargeStars; i++) {
LargeYpos[i] = Math.round(Math.random() * WinHeight);
LargeXpos[i] = Math.round(Math.random() * WinWidth);
Largespeed[i] = Math.random() * 10 + 5;
}
function fly() {
var WinHeight = (document.layers)?window.innerHeight:window.docume nt.body.clientHeight;
var WinWidth = (document.layers)?window.innerWidth:window.documen t.body.clientWidth;
var hscrll = (document.layers)?window.pageYOffset:document.body .scrollTop;
var wscrll = (document.layers)?window.pageXOffset:document.body .scrollLeft;
for (i = 0; i < LargeStars; i++) {
LargeXpos[i] -= Largespeed[i];
if (LargeXpos[i] < -10) {
LargeXpos[i] = WinWidth;
LargeYpos[i] = Math.round(Math.random() * WinHeight);
Largespeed[i] = Math.random() * 10 + 5;
}
if (ns) {
document.layers[‘ln’+i].left = LargeXpos[i];
document.layers[‘ln’+i].top = LargeYpos[i] + hscrll;
}
else {
li[i].style.pixelLeft = LargeXpos[i];
li[i].style.pixelTop = LargeYpos[i] + hscrll;
}
}
for (i = 0; i < SmallStars; i++) {
SmallXpos[i] -= Smallspeed[i];
if (SmallXpos[i] < -10) {
SmallXpos[i] = WinWidth;
SmallYpos[i] = Math.round(Math.random()*WinHeight);
Smallspeed[i] = Math.random() * 5 + 1;
}
if (ns) {
document.layers[‘sn’+i].left = SmallXpos[i];
document.layers[‘sn’+i].top = SmallYpos[i]+hscrll;
}
else {
si[i].style.pixelLeft = SmallXpos[i];
si[i].style.pixelTop = SmallYpos[i]+hscrll;
}
}
setTimeout(‘fly()’, 10);
}
// End –>
</script>
<!– Script Size: 3.79 KB –>

kent(HCE)

 

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