悬浮广告方法日常收集整理_javascript技巧

1左侧或者右侧的悬浮广告。

css样式：

*{padding: 0;margin: 0;}
.fl{float:left;display: inline;}
.fr{float: right;display: inline;}
.clearfix{*zoom: 1;}
.clearfix:after{ display: block; content: ""; height: 0;line-height: 0;visibility: hidden; clear: both;}
/*tab 切换*/
.tab_title{ line-height: 30px; border-bottom: 1px solid #ccc; width: 360px;margin: 0 auto;}
.tab_title a{ display: inline-block; font-size: 16px;color: #333; text-decoration: none; margin-right: 20px;}
.tab_title a.active{color: red;}
.tab_content{width: 340px; padding:5px 10px;margin: 0 auto; border: 1px solid #ccc; height: 120px;}
/*文字滚动*/
.moveScroll{ width: 360px; height: 120px; border: 1px solid #ccc; margin: 50px auto;}
.moveparent{ width: 330px;height: 90px;overflow: hidden; margin:15px auto;}
.moveScroll .content{ color: #333; }
/*文本输入框*/
.inputText{ width: 320px; padding:10px; line-height: 22px;margin: 10px auto;display: block;color: #999;}
/*幻灯片*/
.wrapper {
width: 324px;
height: 325px;
_height: 321px;
position: relative;
z-index: 1;
margin: 20PX auto;
}
.wrapper .main {
width: 324px;
height: 222px;
overflow: hidden;
}
.wrapper li {
float: left;
display: inline;
}
.wrapper ul img {
width: 324px;
height: 222px;
position: relative;
z-index: 1;
}
.wrapper ul span {
position: absolute;
display: block;
text-align: center;
width: 324px;
height: 20px;
overflow: hidden;
bottom: 10px;
left: 0;
}
.wrapper ol {
margin-right: -4px;
height: 58px;
*zoom: 1;
}
.wrapper ol:after {
display: block;
content: "";
line-height: 0;
height: 0;
visibility: hidden;
clear: both;
}
.wrapper ol img {
width: 78px;
height: 52px;
margin: 6px 4px 0 0;
}
.wrapper ol li {
opacity: 0.5;
filter: alpha(opacity=50);
cursor: pointer;
}
.wrapper ol .active {
opacity: 1;
filter: alpha(opacity=100);
} 

html代码：

js文件除引入jquery外(要问我jquery是什么，请出门左转)还需要：

var FloatAd = function(obj){
var mainNode = $("." + obj.main)[0];
if(obj.nodeLink && (typeof obj.nodeLink == "string")){
var newFloatObj = document.createElement("div");
newFloatObj.id = obj.floatObj;
newFloatObj.style.position = "absolute";
newFloatObj.style.zIndex = 10;
newFloatObj.innerHTML = obj.nodeLink;
document.body.appendChild(newFloatObj);
}
this.ad = document.getElementById(obj.floatObj);
this.main = document.getElementById(obj.main)||mainNode;
this.x = obj.x;
this.y = obj.y;
this.locate = obj.locate;
this.space = obj.space;
var that = this;
this.play = function(){
setInterval(function(){
that.calculate();
},10);
};
}
FloatAd.prototype = {
constructor : FloatAd,
calculate : function(){
var obj_x = this.x,
obj_y = this.y,
main_offsetLeft = document.documentElement.scrollLeft||document.body.scrollLeft,
main_offsetTop = document.documentElement.scrollTop||document.body.scrollTop;
if(this.main){
if(this.locate == "left"){
obj_x = this.main.offsetLeft - this.ad.offsetWidth - this.space;
}else if(this.locate == "right"){
obj_x = this.main.offsetLeft + this.main.offsetWidth + this.space;
}
if(this.ad.offsetLeft != main_offsetLeft + obj_x){
var dx = (main_offsetLeft + obj_x - this.ad.offsetLeft)*0.08;
dx = (dx > 0 ? 1 : -1)*Math.ceil(Math.abs(dx));
this.ad.style.left = this.ad.offsetLeft + dx + "px";
} 
}else{
if(this.locate == "left"){
this.ad.style.left = obj_x + "px";
}else if(this.locate == "right"){
this.ad.style.right = obj_x +"px";
}
}
if(this.ad.offsetTop != main_offsetTop + obj_y){
var dy = (main_offsetTop + obj_y - this.ad.offsetTop)*0.08;
dy = (dy > 0 ? 1 : -1)*Math.ceil(Math.abs(dy));
this.ad.style.top = this.ad.offsetTop + dy + "px";
}
}
}

这是自己在用到这种效果的时候整理出来的，copy网上的案例，进行整理，方便大家使用。

2 全屏漂浮案例：飘窗！

css文件：

#img1{
z-index: 100;
left: 2px;
width: 59px;
position: absolute;
top: 43px;
height: 61px;
visibility: visible;
} 

html文件

js代码：

var xPos = 300;
var yPos = 200;
var step = 1;
var delay = 30;
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
img1.style.top = yPos;
function changePos()
{
width = document.body.clientWidth;
height = document.body.clientHeight;
Hoffset = img1.offsetHeight;
Woffset = img1.offsetWidth;
img1.style.left = xPos + document.body.scrollLeft;
img1.style.top = yPos + document.body.scrollTop;
if (yon)
{yPos = yPos + step;}
else
{yPos = yPos - step;}
if (yPos = (height - Hoffset))
{yon = 0;yPos = (height - Hoffset);}
if (xon)
{xPos = xPos + step;}
else
{xPos = xPos - step;}
if (xPos = (width - Woffset))
{xon = 0;xPos = (width - Woffset); }
}
function start()
{
img1.visibility = "visible";
interval = setInterval('changePos()', delay);
}
function pause_resume()
{
if(pause)
{
clearInterval(interval);
pause = false;}
else
{
interval = setInterval('changePos()',delay);
pause = true;
}
}
start();

以上内容是小编给大家整理的有关悬浮广告方法，希望对大家有所帮助！