<html>
<head>
<title>JavaScript弹性透明的图片放大代码_网页代码站(www.webdm.cn)</title>
<style type="text/css">
html {
overflow: hidden;
}
body {
margin: 0px;
padding: 0px;
background: #000;
position: absolute;
cursor: crosshair;
}
#diapoContainer {
position: absolute;
left: 10%;
top: 10%;
width: 80%;
height: 80%;
background: #222;
overflow: hidden;
}
.imgDC {
position: absolute;
cursor: pointer;
border: #000 solid 2px;
filter: alpha(opacity=90);
opacity: 0.9;
visibility: hidden;
}
.spaDC {
position: absolute;
filter: alpha(opacity=20);
opacity: 0.2;
background: #000;
visibility: hidden;
}
.imgsrc {
position: absolute;
width: 120px;
height: 67px;
visibility: hidden;
margin: 4%;
}
#bkgcaption {
position: absolute;
bottom: 0px;
left: 0px;
width: 100%;
height: 6%;
background:#1a1a1a;
}
#caption {
position: absolute;
font-family: arial, helvetica, verdana, sans-serif;
white-space: nowrap;
color: #fff;
bottom: 0px;
width: 100%;
left: -10000px;
text-align: center;
}
</style>
<script type="text/javascript">
var xm;
var ym;
document.onmousemove = function(e){
if(window.event) e=window.event;
xm = (e.x || e.clientX);
ym = (e.y || e.clientY);
}
function resize() {
if(diapo)diapo.resize();
}
onresize = resize;
setOpacity = function(o, alpha){
if(o.filters)o.filters.alpha.opacity = alpha * 100; else o.style.opacity = alpha;
}
diapo = {
O : [],
DC : 0,
img : 0,
txt : 0,
N : 0,
xm : 0,
ym : 0,
nx : 0,
ny : 0,
nw : 0,
nh : 0,
rs : 0,
rsB : 0,
zo : 0,
tx_pos : 0,
tx_var : 0,
tx_target : 0,
attraction : 2,
acceleration : .9,
dampening : .1,
zoomOver : 2,
zoomClick : 6,
transparency : .8,
font_size: 18,
resize : function(){
with(this){
nx = DC.offsetLeft;
ny = DC.offsetTop;
nw = DC.offsetWidth;
nh = DC.offsetHeight;
txt.style.fontSize = Math.round(nh / font_size) + "px";
if(Math.abs(rs-rsB)<100) for(var i=0; i<N; i++) O[i].resize();
rsB = rs;
}
},
CDiapo : function(o){
this.o = o;
this.x_pos = this.y_pos = 0;
this.x_origin = this.y_origin = 0;
this.x_var = this.y_var = 0;
this.x_target = this.y_target = 0;
this.w_pos = this.h_pos = 0;
this.w_origin = this.h_origin = 0;
this.w_var = this.h_var = 0;
this.w_target = this.h_target = 0;
this.over = false;
this.click = false;
this.spa = document.createElement("span");
this.spa.className = "spaDC";
diapo.DC.appendChild(this.spa);
this.img = document.createElement("img");
this.img.className = "imgDC";
this.img.src = o.src;
this.img.O = this;
diapo.DC.appendChild(this.img);
setOpacity(this.img, diapo.transparency);
this.img.onselectstart = new Function("return false;");
this.img.ondrag = new Function("return false;");
this.img.onmouseover = function(){
diapo.tx_target=0;
diapo.txt.innerHTML=this.O.o.alt;
this.O.over=true;
setOpacity(this,this.O.click?diapo.transparency:1);
}
this.img.onmouseout = function(){
diapo.tx_target=-diapo.nw;
this.O.over=false;
setOpacity(this,diapo.transparency);
}
this.img.onclick = function() {
if(!this.O.click){
if(diapo.zo && diapo.zo != this) diapo.zo.onclick();
this.O.click = true;
this.O.x_origin = (diapo.nw - (this.O.w_origin * diapo.zoomClick)) / 2;
this.O.y_origin = (diapo.nh - (this.O.h_origin * diapo.zoomClick)) / 2;
diapo.zo = this;
setOpacity(this,diapo.transparency);
} else {
this.O.click = false;
this.O.over = false;
this.O.resize();
diapo.zo = 0;
}
}
this.resize = function (){
with (this) {
x_origin = o.offsetLeft;
y_origin = o.offsetTop;
&
