📄 807ye1.htm

📁 javascript各种效果的实例及源代码
💻 HTM
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<html>
<head>
<title>页面上下滚动</title>
<style type="text/css">
<!--
body {  font-family: "宋体"; font-size: 9pt; margin-top: 0px; margin-left: 0px; margin-right: 0px}
A { COLOR: black; FONT-SIZE: 9pt; FONT-WEIGHT: 400; TEXT-DECORATION: none }
 A:hover { COLOR: red; FONT-SIZE: 9pt; 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">

<style type="text/css">
#item {position:absolute; visibility:hidden; left:0px}
</style>

<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
var isNS=(document.layers);
var _all=(isNS)? '' : 'all.' ;
var _style=(isNS)? '' : '.style' ;
var _visible=(isNS)? 'show' : 'visible';
var w_x, w_y, item, okscroll=false, godown;
function init(){
item=eval('document.'+_all+'item'+_style);
getwindowsize();
item.visibility=_visible;
scrollpage();
}
function getwindowsize() {
w_x=(isNS)? window.innerWidth-5 : document.body.clientWidth;
w_y=(isNS)? window.innerHeight : document.body.clientHeight;
(isNS)? item.clip.width=42: item.width=42;
(isNS)? item.clip.height=20 : item.height=20;
moveitem();
}
function resizeNS() {
setTimeout('document.location.reload()',400);
}
function moveitem() {
if (isNS) {
item.moveTo((pageXOffset+w_x-70),(w_y+pageYOffset-50))
}else{
item.pixelLeft=document.body.scrollLeft+w_x-70;
item.pixelTop=w_y+document.body.scrollTop-50;
   }
}
window.onload=init;
(isNS) ? window.onresize=resizeNS : window.onresize=getwindowsize ;
function scrollpage() {
status = '';
if (okscroll) {
if (godown) {
(isNS)? window.scrollBy(0,4) : window.scrollBy(0,4) ;
} else {
(isNS)? window.scrollBy(0,-4) : window.scrollBy(0,-4) ;
   }
}
moveitem();
setTimeout('scrollpage()', 40);
}
//  End -->
</script>
</head>
<body bgcolor="#fef4d9"> 
<br>
<br>
<center><font color=red face="隶书" size=6>页面上下滚动</font></center>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
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<br>
<center>
<table border=5 bordercolor=blue borderlight=green>
<tr><td align=center><font size=3 color=red face="Arial, Helvetica, sans-serif"><strong>请把鼠标放在图片上!</strong></font></td></tr>
</table><div id="item">
<a href="javascript:void(0)" onMouseover="okscroll=true; godown=true" 
onMouseout="okscroll=false"><img src="down.gif" border="0"></a><a href="javascript:void(0)" 
onMouseover="okscroll=true; godown=false" onMouseout="okscroll=false"><img src="up.gif" 
border="0"></a>
</div></center>
<br>
<br>
<center>
<textarea name=source rows=12 cols=45 class=yk9>
脚本说明:
第一步:把如下代码加入<head>区域中

<style type="text/css">
#item {position:absolute; visibility:hidden; left:0px}
</style>

<SCRIPT LANGUAGE="JavaScript">


<!-- Begin
var isNS=(document.layers);
var _all=(isNS)? '' : 'all.' ;
var _style=(isNS)? '' : '.style' ;
var _visible=(isNS)? 'show' : 'visible';
var w_x, w_y, item, okscroll=false, godown;
function init(){
item=eval('document.'+_all+'item'+_style);
getwindowsize();
item.visibility=_visible;
scrollpage();
}
function getwindowsize() {
w_x=(isNS)? window.innerWidth-5 : document.body.clientWidth;
w_y=(isNS)? window.innerHeight : document.body.clientHeight;
(isNS)? item.clip.width=42: item.width=42;
(isNS)? item.clip.height=20 : item.height=20;
moveitem();
}
function resizeNS() {
setTimeout('document.location.reload()',400);
}
function moveitem() {
if (isNS) {
item.moveTo((pageXOffset+w_x-70),(w_y+pageYOffset-50))
}else{
item.pixelLeft=document.body.scrollLeft+w_x-70;
item.pixelTop=w_y+document.body.scrollTop-50;
   }
}
window.onload=init;
(isNS) ? window.onresize=resizeNS : window.onresize=getwindowsize ;
function scrollpage() {
status = '';
if (okscroll) {
if (godown) {
(isNS)? window.scrollBy(0,4) : window.scrollBy(0,4) ;
} else {
(isNS)? window.scrollBy(0,-4) : window.scrollBy(0,-4) ;
   }
}
moveitem();
setTimeout('scrollpage()', 40);
}
//  End -->
</script>




第二步:把如下代码加入<body>区域中
<div id="item">
<a href="javascript:void(0)" onMouseover="okscroll=true; godown=true" 
onMouseout="okscroll=false"><img src="down.gif" border="0"></a><a href="javascript:void(0)" 
onMouseover="okscroll=true; godown=false" onMouseout="okscroll=false"><img src="up.gif" 
border="0"></a>
</div>
</textarea>
<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>
<br>
</body>
</html>
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