📄 807back2.htm

📁 javascript各种效果的实例及源代码

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<html>
<head>
<title>背景向下移动(二)</title>
<style type="text/css">
<!--
body {  font-family: "宋体"; font-size: 9pt; margin-top: 0px; margin-left: 4px; margin-right: 0px}
A { COLOR: black; FONT-SIZE: 13px; FONT-WEIGHT: 400; TEXT-DECORATION: none }
 A:hover { COLOR: red; FONT-SIZE: 13px; FONT-WEIGHT: 400; TEXT-DECORATION: underline }
a:active     { font: 9pt "宋体"; cursor: hand; color: #FF0033 }
--></style>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body background=back.jpg>
<br>
<br>
<center><font color=red face="隶书" size=6>背景向下移动(二)</font></center>
<br>
<center>
<table border=5 bordercolor=blue borderlight=green>
<tr><td align=center><font size=3 color=red face="Arial, Helvetica, sans-serif"><strong>本例是用javascript编写的,不同与以前的VBscript</strong></font></td></tr></table></center>
<script language="JavaScript">
<!-- Begin
var backgroundOffset = 0;
var bgObject = eval('document.body');
function scrollBG(maxSize) {
backgroundOffset = backgroundOffset + 1;
if (backgroundOffset > maxSize) backgroundOffset = 0;
bgObject.style.backgroundPosition = "0 " + backgroundOffset;
}
var ScrollTimer = window.setInterval("scrollBG(307)", 64);
// End -->
</script>

<br>
<br>
<center>

<SCRIPT LANGUAGE="JavaScript">

<!-- hide
function goHist(a)
{
   history.go(a);
}
//-->
</script>
<FORM METHOD="post">
<INPUT TYPE="button" VALUE="返回" onClick="goHist(-1)" style="background-color: #8000FF; color: rgb(255,255,255)">
</form>
</center>
<br>
<center>
<textarea name=source rows=12 cols=55 class=yk9>
脚本说明：
把如下代码加入<body>区域中:
<script language="JavaScript">
<!-- Begin
var backgroundOffset = 0;
var bgObject = eval('document.body');
function scrollBG(maxSize) {
backgroundOffset = backgroundOffset + 1;
if (backgroundOffset > maxSize) backgroundOffset = 0;
bgObject.style.backgroundPosition = "0 " + backgroundOffset;
}
var ScrollTimer = window.setInterval("scrollBG(307)", 64);
// End -->
</script>
</textarea>
<br>
<br>
</body>
</html>

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