图像虚幻显示特效_网页图片特效

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您的位置：网页特效库 >> 网页图片特效 >> 图像虚幻显示特效	查看此特效演示

图像虚幻显示特效

把如下代码复制到<body>与</body>之间

<SCRIPT language=JavaScript>
<!-- Beginning of JavaScript -
var x,y
var marginbottom
var marginleft=0
var margintop=0
var marginright
var cliptop
var clipbottom
var clipleft
var clipright
var clippoints

var ballheight=150

var ballwidth=150

var imageheight=525

var imagewidth=457

// less is faster

var tempo=25

// horizontal move (pixels) within time unit

var stepx=12

// vertical move (pixels) within time unit

var stepy=6

var timer

// check the width and the height of the document

// gets the starting position of the ball by random

function setValues() {

if (document.all) {

marginbottom = imageheight-ballheight

marginright = imagewidth-ballwidth

document.all.ball.style.posLeft=randommaker(400)

document.all.ball.style.posTop=0

document.all.textcontent.style.posLeft=0

document.all.textcontent.style.posTop=0

document.all.ball.style.filter="alpha(opacity=0,finishopacity=100,style=2,startX=0px,startY=0px,finishX=100px,finishY=100px)"

moveball()

}

// randomfunction

function randommaker(range) {

rand=Math.floor(range*Math.random())

return rand

}

function moveball() {

checkposition()

if (document.all) {

document.all.ball.style.posLeft+=stepx

document.all.ball.style.posTop+=stepy

cliptop=document.all.ball.style.posTop

clipbottom=cliptop+ballheight

clipleft=document.all.ball.style.posLeft

clipright=clipleft+ballwidth

clippoints="rect("+cliptop+" "+clipright+" "+clipbottom+" "+clipleft+")"

document.all.textcontent.style.clip=clippoints

timer=setTimeout("moveball()",tempo)

}

function checkposition() {

if (document.all) {

if (document.all.ball.style.posLeft>=marginright) {

stepx=stepx*-1

document.all.ball.style.posLeft-=10

}

if (document.all.ball.style.posLeft<=marginleft) {

stepx=stepx*-1

document.all.ball.style.posLeft+=10

}

if (document.all.ball.style.posTop>=marginbottom) {

stepy=stepy*-1

document.all.ball.style.posTop-=10

}

if (document.all.ball.style.posTop<=margintop) {

stepy=stepy*-1

document.all.ball.style.posTop+=10

}

// - End of JavaScript - -->

</SCRIPT>

<span id=textcontent style="LEFT: -5000px; POSITION: absolute; TOP: -5000px"><IMG

border=0 src="Computer_WindowsXP_01_032.jpg"> </span>

<span id=ball

style="BACKGROUND-COLOR: white; HEIGHT: 150px; POSITION: absolute; TOP: -50px; WIDTH: 150px"></span>

修改<body>标签为

使用说明：代码的最后部分的src值为调用的背景图片，可以用你喜欢的图片作为背景。

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