13518219792
那你例子你下了吧？我简单改了一下做了个例子。
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你把首页里的东西放到一个div层，然后设置
style="position: absolute;z-index: 100"
然后你的下拉广告style='z-index: 999' 这样就好了，
建议你学学CSS里面的position，和z-index属性
DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""
html xmlns=""
head
meta http-equiv="Content-Type" content="text/html; charset=gbk" /
title/title
script type="text/javascript" src="jquery.js"/script
script type="text/javascript"
$(document).ready(function(){
$(".btn-slide").click(function(){
$("#panel").slideToggle("slow");
$(this).toggleClass("active"); return false;
});
});
/script
style type="text/css"
body {
margin: 0 auto;
padding: 0;
width: 570px;
font: 75%/120% Arial, Helvetica, sans-serif;
}
a:focus {
outline: none;
}
#panel {
background: #754c24;
height: 200px;
display: none;
}
.slide {
margin: 0;
padding: 0;
border-top: solid 4px #422410;
background: url(images/btn-slide.gif) no-repeat center top;
}
.btn-slide {
background: url(images/white-arrow.gif) no-repeat right -50px;
text-align: center;
width: 144px;
height: 31px;
padding: 10px 10px 0 0;
margin: 0 auto;
display: block;
font: bold 120%/100% Arial, Helvetica, sans-serif;
color: #fff;
text-decoration: none;
}
.active {
background-position: right 12px;
}
/style
/head
body
div style="position: absolute;z-index: 100"
table border='1' width="100%"
tr
td首页的东西/tdtd2/tdtd3/tdtd4/tdtd5/td
/tr
tr
td1/tdtd2/tdtd3/tdtd4/tdtd5/td
/tr
tr
td1/tdtd2/tdtd3/tdtd4/tdtd5/td
/tr
tr
td1/tdtd2/tdtd3/tdtd4/tdtd5/td
/tr
/table
/div
div id="panel" style='z-index: 999'
p style="margin: 5px;color: #fff;line-height:20px;"阿里西西/p
/div
p class="slide"a href="#" class="btn-slide"阿里西西/a/p
p阿里西西/p
/body
/html
图片轮播器之类的，具体原来就是将图片css设置成relativ，wrapper中设置为overflow为隐藏,然后更改左侧或者右侧的位置或者margin的值，上下就是更改上下的值。基本思路就是这个。
具体的演示给你个我最近找的：
定义弹出层代码
div class="advbox"
div class="advpic"
img width="670" height="420" alt="" src="images/xin.jpg"/
a href="javascript:void(0);" class="closebtn"关闭/a
/div
/div
添加css样式
*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;text-decoration:none;}
body{font:12px/180% Arial, Helvetica, sans-serif,"";}
/* advbox */
*html,*html body{background-image:url(about:blank);background-attachment:fixed;}
*html .advbox{position:absolute;top:expression(eval(document.documentElement.scrollTop));}
.advbox{width:670px;position:fixed;display:none;left:50%;top:0;margin:-215px 0 0 -325px;}
.advbox .advpic{position:relative;height:420px;overflow:hidden;}
.advbox .advpic .closebtn{display:block;width:40px;height:20px;line-height:20px;font-size:12px;color:#fff;text-indent:12px;overflow:hidden;position:absolute;right:5px;top:0px;z-index:99;}
加入jq代码
$(document).ready(function(){
var COOKIE_NAME = "showbox";
if($.cookie(COOKIE_NAME)){
$(".advbox").hide();
}else{
$(".advbox").show();
$(".advbox").animate({top:"50%"},1000);
$(".closebtn").click(function(){
$(".advbox").fadeOut(500);
})
$.cookie(COOKIE_NAME,'ishide',{expires:1});
}
})
您好：这个可以直接百度下载一个jquery插件即可。看你的意思就是一个广告图片然后在页面上来回的动，碰到周边就改变方向那个效果吧？百度一大把。
titleJS浮动广告/title
style type="text/css"
img{border:0;}
/style
SCRIPT type=text/javascript
function addEvent(obj,evtType,func,cap){
cap=cap||false;
if(obj.addEventListener){
obj.addEventListener(evtType,func,cap);
return true;
}else if(obj.attachEvent){
if(cap){
obj.setCapture();
return true;
}else{
return obj.attachEvent("on" + evtType,func);
}
}else{
return false;
}
}
function getPageScroll(){
var xScroll,yScroll;
if (self.pageXOffset) {
xScroll = self.pageXOffset;
} else if (document.documentElement document.documentElement.scrollLeft){
xScroll = document.documentElement.scrollLeft;
} else if (document.body) {
xScroll = document.body.scrollLeft;
}
if (self.pageYOffset) {
yScroll = self.pageYOffset;
} else if (document.documentElement document.documentElement.scrollTop){
yScroll = document.documentElement.scrollTop;
} else if (document.body) {
yScroll = document.body.scrollTop;
}
arrayPageScroll = new Array(xScroll,yScroll);
return arrayPageScroll;
}
function GetPageSize(){
var xScroll, yScroll;
if (window.innerHeight window.scrollMaxY) {
xScroll = document.body.scrollWidth;
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight document.body.offsetHeight){
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else {
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
var windowWidth, windowHeight;
if (self.innerHeight) {
windowWidth = self.innerWidth;
windowHeight = self.innerHeight;
} else if (document.documentElement document.documentElement.clientHeight) {
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else if (document.body) {
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
}
if(yScroll windowHeight){
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
if(xScroll windowWidth){
pageWidth = windowWidth;
} else {
pageWidth = xScroll;
}
arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
return arrayPageSize;
}
var AdMoveConfig=new Object();
AdMoveConfig.IsInitialized=false;
AdMoveConfig.ScrollX=0;
AdMoveConfig.ScrollY=0;
AdMoveConfig.MoveWidth=0;
AdMoveConfig.MoveHeight=0;
AdMoveConfig.Resize=function(){
var winsize=GetPageSize();
AdMoveConfig.MoveWidth=winsize[2];
AdMoveConfig.MoveHeight=winsize[3];
AdMoveConfig.Scroll();
}
AdMoveConfig.Scroll=function(){
var winscroll=getPageScroll();
AdMoveConfig.ScrollX=winscroll[0];
AdMoveConfig.ScrollY=winscroll[1];
}
addEvent(window,"resize",AdMoveConfig.Resize);
addEvent(window,"scroll",AdMoveConfig.Scroll);
function AdMove(id){
if(!AdMoveConfig.IsInitialized){
AdMoveConfig.Resize();
AdMoveConfig.IsInitialized=true;
}
var obj=document.getElementById(id);
obj.style.position="absolute";
var W=AdMoveConfig.MoveWidth-obj.offsetWidth;
var H=AdMoveConfig.MoveHeight-obj.offsetHeight;
var x = W*Math.random(),y = H*Math.random();
var rad=(Math.random()+1)*Math.PI/6;
var kx=Math.sin(rad),ky=Math.cos(rad);
var dirx = (Math.random()0.5?1:-1), diry = (Math.random()0.5?1:-1);
var step = 1;
var interval;
this.SetLocation=function(vx,vy){x=vx;y=vy;}
this.SetDirection=function(vx,vy){dirx=vx;diry=vy;}
obj.CustomMethod=function(){
obj.style.left = (x + AdMoveConfig.ScrollX) + "px";
obj.style.top = (y + AdMoveConfig.ScrollY) + "px";
rad=(Math.random()+1)*Math.PI/6;
W=AdMoveConfig.MoveWidth-obj.offsetWidth;
H=AdMoveConfig.MoveHeight-obj.offsetHeight;
x = x + step*kx*dirx;
if (x 0){dirx = 1;x = 0;kx=Math.sin(rad);ky=Math.cos(rad);}
if (x W){dirx = -1;x = W;kx=Math.sin(rad);ky=Math.cos(rad);}
y = y + step*ky*diry;
if (y 0){diry = 1;y = 0;kx=Math.sin(rad);ky=Math.cos(rad);}
if (y H){diry = -1;y = H;kx=Math.sin(rad);ky=Math.cos(rad);}
}
this.Run=function(){
var delay = 10;
interval=setInterval(obj.CustomMethod,delay);
obj.onmouseover=function(){clearInterval(interval);}
obj.onmouseout=function(){interval=setInterval(obj.CustomMethod, delay);}
}
}
/SCRIPT
DIV id=ad1 style="Z-INDEX: 5"
!--漂浮开始--
A href=""
target=_blankIMG src=""/A
!--漂浮结束--
/DIV
SCRIPT type=text/javascript!--
var ad1=new AdMove("ad1");
ad1.Run();
//多组漂浮
//var ad1=new AdMove("ad2");
//ad2.Run();
//--
/SCRIPT
