📄 43.html
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<html>
<head>
<title>滚动背景</title>
<script language="javascript">
var y=100;
var bgticker;
function initObjects() {
if (document.all) {
bgticker = document.all.bgtick.style ;
bgticker.posLeft = 0;
bgticker.posTop = 400;
mainbody = document.all.mainbod.style;
mainbody.posLeft = 0;
mainbody.posTop = 0;
}
if (document.layers) {
bgticker = document.bgtick;
bgticker.left = 0;
bgticker.top = 300;
mainbody = document.mainbod;
mainbody.left = 0;
mainbody.top = 0;
}
scroll();
}
function scroll() {
if (y > -200) {
y--;
if (document.all) {
bgticker.posTop = y;
mainbody.posTop=0;
}
if (document.layers) {
bgticker.top = y;
mainbody.top=0;
}
}
else{
y=300;
}
var timer = setTimeout('scroll()',20);
}
</script>
<style>
.ticker {
position: absolute;
font-family:Arial;
color:DDDDDD;
font-size:60px;
letter-spacing:1; }
</style>
</head>
<body onLoad="initObjects()">
<script language="javascript">
for(i=0;i<50;i++)
document.write("<h1>正文</h1>");
</script>
<div id="bgtick" class="ticker">
这是背景字模<br><font color=red>不影响网页文字的显示<font>
</div>
<div id="mainbod" style="position:absolute; visibility:visible">
</div>
</body>
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