This article describes the method of JS implementation to expand web windows from the middle to the top and bottom. Share it for your reference. The specific analysis is as follows:
This page is displayed from the middle and slowly expanding up and down, which is not bad, the code is as follows:
Copy the code as follows: <html>
<head>
<title>js displays the web window of the expanded middle</title>
<style>
<!--
.intro{
position:absolute;
left:0;
top:0;
layer-background-color:yellow;
background-color:#336699;
border:0.1px solid #336699
}
-->
</style>
</head>
<body>
<div id="i1"></div><div id="i2"></div>
<script language="JavaScript1.2">
var speed=20
var temp=new Array()
var temp2=new Array()
if (document.layers){
for (i=1;i<=2;i++){
temp[i]=eval("document.i"+i+".clip")
temp2[i]=eval("document.i"+i)
temp[i].width=window.innerWidth
temp[i].height=window.innerHeight/2
temp2[i].top=(i-1)*temp[i].height
}
}
else if (document.all){
var clipbottom=document.body.offsetHeight/2,cliptop=0
for (i=1;i<=2;i++){
temp[i]=eval("document.all.i"+i+".style")
temp[i].width=document.body.clientWidth
temp[i].height=document.body.offsetHeight/2
temp[i].top=(i-1)*parseInt(temp[i].height)
}
}
function openit(){
window.scrollTo(0,0)
if (document.layers){
temp[1].bottom-=speed
temp[2].top+=speed
if (temp[1].bottom<=0)
clearInterval(stopit)
}
else if (document.all){
clipbottom-=speed
temp[1].clip="rect(0 auto+"+clipbottom+" 0)"
cliptop+=speed
temp[2].clip="rect("+cliptop+" auto auto)"
if (clipbottom<=0)
clearInterval(stopit)
}
}
function gogo(){
stopit=setInterval("openit()",100)
}
gogo()
</script>
</body>
</html>
I hope this article will be helpful to everyone's Go language programming.