現(xiàn)在很多網(wǎng)站廣告做的如火如荼，現(xiàn)在我就來介紹一下常見的對(duì)聯(lián)浮動(dòng)廣告效果的代碼使用方法，介紹的這種效果，在1024*768分辨率下正常顯示，在800*600的分辨率下可以自動(dòng)隱藏，以免遮住頁(yè)面影響訪問者瀏覽內(nèi)容，下面就是實(shí)現(xiàn)效果所需代碼：

  var delta=0.015
    var collection;
    function floaters() {
        this.items    = [];
        this.addItem    = function(id,x,y,content)
                  {
                    document.write(‘<DIV id=’+id+’ style=”Z-INDEX: 0; POSITION: absolute;  width:80px; height:60px;left:’+(typeof(x)==’string’?eval(x):x)+’;top:’+(typeof(y)==’string’?eval(y):y)+'”>’+content+'</DIV>’);
                  
                    var newItem                = {};
                    newItem.object            = document.getElementById(id);
                    newItem.x                = x;
                    newItem.y                = y;

                    this.items[this.items.length]        = newItem;
                  }
        this.play    = function()
                  {
                    collection                = this.items
                    setInterval(‘play()’,10);
                  }
        }
        function play()
        {
            if(screen.width<=800)
            {
                for(var i=0;i<collection.length;i++)
                {
                    collection[i].object.style.display    = ‘none’;
                }
                return;
            }
            for(var i=0;i<collection.length;i++)
            {
                var followObj        = collection[i].object;
                var followObj_x        = (typeof(collection[i].x)==’string’?eval(collection[i].x):collection[i].x);
                var followObj_y        = (typeof(collection[i].y)==’string’?eval(collection[i].y):collection[i].y);

                if(followObj.offsetLeft!=(document.body.scrollLeft+followObj_x)) {
                    var dx=(document.body.scrollLeft+followObj_x-followObj.offsetLeft)*delta;
                    dx=(dx>0?1:-1)*Math.ceil(Math.abs(dx));
                    followObj.style.left=followObj.offsetLeft+dx;
                    }

                if(followObj.offsetTop!=(document.body.scrollTop+followObj_y)) {
                    var dy=(document.body.scrollTop+followObj_y-followObj.offsetTop)*delta;
                    dy=(dy>0?1:-1)*Math.ceil(Math.abs(dy));
                    followObj.style.top=followObj.offsetTop+dy;
                    }
                followObj.style.display    = ”;
            }
        }  
      
    var theFloaters        = new floaters();
    theFloaters.addItem(‘followDiv1′,’document.body.clientWidth-100′,0,'</a><br><a href=廣告鏈接地址 target=_blank><img src=廣告圖片地址 width=100 height=400 border=0></a>’);
    theFloaters.addItem(‘followDiv2′,0,0,'<br><a href=廣告鏈接地址 target=_blank><img src=廣告圖片地址 width=100 height=400 border=0></a>’);
    theFloaters.play(); 
把上面的代碼另存為一個(gè)JS文件，然后在想實(shí)現(xiàn)此效果的頁(yè)面用 調(diào)用即可！注意修改廣告圖片地址和連接地址！

鼠標(biāo)感應(yīng)]

與前面一個(gè)代碼不同的是，當(dāng)鼠標(biāo)移動(dòng)到廣告圖片上是可以感應(yīng)顯示另外設(shè)置好的廣告大圖效果，下面就是實(shí)現(xiàn)效果所需代碼：

function bigshow(){
document.all.div_250.style.visibility = ‘visible’;
document.all.div_80.style.visibility = ‘hidden’;
}
function bighide(){
document.all.div_80.style.visibility = ‘visible’;
document.all.div_250.style.visibility = ‘hidden’;
}

var ad_80= new Array(1);
var ad_250= new Array(1);

ad_80[0]=”<a href=http://www.dfeng.net target=_blank><img src=/skin/adv43/ad/ad_ad.gif border=0></a>”;
ad_250[0]=”<a href=http://www.dfeng.net target=_blank><img src=/skin/adv43/ad/ad_ad2.gif border=0></a>”;

var imgheight;
var fubioleft;
window.screen.width>800 ? fubioleft=15:fubioleft=15

document.write(‘<DIV id=floater_left style=”Z-INDEX: 25; LEFT:’+fubioleft+’px; WIDTH: 28px;POSITION: absolute; TOP: 42px; HEIGHT: 22px”>’);

ad_now = new Date();
ad_id= ad_now.getSeconds() %1

var adhead1=”<div id=div_80 style=’position:absolute; width:95px; height:62px; z-index:12′ onMouseOver=bigshow();>”;
var adhead2=”</div><div id=div_250 style=’position:absolute;  visibility: hidden; z-index:13;width: 80; height: 60′  onMouseOut=bighide();>”;

//var adhead1=”<div id=div_80 style=’position:absolute; width:95px; height:62px; z-index:20′ onMouseOut=’//MM_showHideLayers(\”div_250\”,\”\”,\”hide\”)’ onMouseOver=’MM_showHideLayers(\”div_250\”,\”\”,\”show\”)’>”;
//var adhead2=”</div><div id=div_250 style=’position:absolute; z-index:21;visibility: hidden; width: 80; height: 60′ onMouseOver=’MM_showHideLayers(\”div_250\”,\”\”,\”show\”)’ onMouseOut=’MM_showHideLayers(\”div_250\”,\”\”,\”hide\”)’>”;

document.write(adhead1+ad_80[ad_id]+adhead2+ad_250[ad_id]+”</div>”);

document.write (“</div>”);
self.onError=null;
currentX = currentY = 0;
     whichIt = null;         
     lastScrollX = 0; lastScrollY = 0;
     NS = (document.layers) ? 1 : 0;
     IE = (document.all) ? 1: 0;   
     function heartBeat() {
      if(IE) {
  diffY = document.body.scrollTop;
  diffX = document.body.scrollLeft; }
             if(NS) {
   diffY = self.pageYOffset; diffX = self.pageXOffset; }
      if(diffY != lastScrollY) {
                     percent = .5 * (diffY – lastScrollY);
                     if(percent > 0) percent = Math.ceil(percent);
                     else percent = Math.floor(percent);
         if(IE) document.all.floater_left.style.pixelTop += percent;
         if(NS) document.floater_left.top += percent;
                     lastScrollY = lastScrollY + percent;
         }
      if(diffX != lastScrollX) {
       percent = .5 * (diffX – lastScrollX);
       if(percent > 0) percent = Math.ceil(percent);
       else percent = Math.floor(percent);
       if(IE) document.all.floater_left.style.pixelLeft += percent;
       if(NS) document.floater_left.left += percent;
       lastScrollX = lastScrollX + percent;
      }
     }

     if(NS || IE) action = window.setInterval(“heartBeat()”,1);var ad_80= new Array(1);
var ad_250= new Array(1);

ad_80[0]=”<a href=http://www.dfeng.net target=_blank><img src=/skin/adv43/ad/ad_ad.jpg border=0></a>”;
ad_250[0]=”<a href=http://www.dfeng.net target=_blank><img src=/skin/adv43/ad/ad_ad.jpg border=0></a>”;

var imgheight;
var fubioleft;
window.screen.width>800 ? fubioleft=15:fubioleft=15

document.write(‘<DIV id=floater_right style=”Z-INDEX: 25; LEFT:’+fubioleft+’px; WIDTH: 28px;POSITION: absolute; TOP: 42px; HEIGHT: 22px”>’);

ad_now = new Date();
ad_id= ad_now.getSeconds() %1

function myload()
{
if (navigator.appName == “Netscape”)
{
document.div_right_80.pageX=+window.innerWidth-130;
document.div_right_250.pageX=+window.innerWidth-300;
mymove();
}
else
{
div_right_80.style.left=document.body.offsetWidth-130;
div_right_250.style.left=document.body.offsetWidth-300;
mymove();
}
}

function mymove()
{
if(document.ns)
{
document.div_right_80.left=pageXOffset+window.innerWidth-130;
document.div_right_250.left=pageXOffset+window.innerWidth-300;
setTimeout(“mymove();”,20)
}
else
{
div_right_80.style.left=document.body.scrollLeft+document.body.offsetWidth-145;
div_right_250.style.left=document.body.scrollLeft+document.body.offsetWidth-300;
setTimeout(“mymove();”,20)
}
}

var adhead1=”<div id=div_right_80 style=’position:absolute; width:95px; height:60px; z-index:12′ onMouseOver=bigshow_right();>”;
var adhead2=”</div><div id=div_right_250  style=’position:absolute;  visibility: hidden; z-index:13;width: 250; height: 250′ onMouseOut=bighide_right();><div align=right>”;

document.write(adhead1+ad_80[ad_id]+adhead2+ad_250[ad_id]+”</div></div>”);

myload()

document.write (“</div>”);
self.onError=null;
currentX_right = currentY_right = 0;
     whichIt_right = null;         
     lastScrollX_right = 0; lastScrollY_right = 0;
     NS = (document.layers) ? 1 : 0;
     IE = (document.all) ? 1: 0;   
     function heartBeat_right() {
      if(IE) {
  diffY_right = document.body.scrollTop;
  diffX_right = document.body.scrollLeft; }
             if(NS) {
   diffY_right = self.pageYOffset; diffX_right = self.pageXOffset; }
      if(diffY_right != lastScrollY_right) {
                     percent_right = .5 * (diffY_right – lastScrollY_right);
                     if(percent_right > 0) percent_right = Math.ceil(percent_right);
                     else percent_right = Math.floor(percent_right);
         if(IE) document.all.floater_right.style.pixelTop += percent_right;
         if(NS) document.floater_right.top += percent_right;
                     lastScrollY_right = lastScrollY_right + percent_right;
         }
      if(diffX_right != lastScrollX_right) {
       percent_right = .5 * (diffX_right – lastScrollX_right);
       if(percent_right > 0) percent_right = Math.ceil(percent_right);
       else percent_right = Math.floor(percent_right);
       if(IE) document.all.floater_right.style.pixelLeft += percent_right;
       if(NS) document.floater_right.left += percent_right;
       lastScrollX_right = lastScrollX_right + percent_right;
      }
     }

     if(NS || IE) action = window.setInterval(“heartBeat_right()”,1);
function bigshow_right(){
document.all.div_right_250.style.visibility = ‘visible’;
document.all.div_right_80.style.visibility = ‘hidden’;
}
function bighide_right(){
document.all.div_right_80.style.visibility = ‘visible’;
document.all.div_right_250.style.visibility = ‘hidden’;
}document.write(”);
document.write(”);
document.write(”);
把上面的代碼另存為一個(gè)JS文件，然后在想實(shí)現(xiàn)此效果的頁(yè)面用

<script type=”text/ja;vascript” language=”ja;vascript1.2″ src=”*.js”></SCRIPT>
調(diào)用即可，*代表你另存的文件名！注意修改廣告圖片地址和連接地址！

與前面兩個(gè)代碼不同的是，廣告圖下方增加了一個(gè)圖片按紐，允許訪客點(diǎn)擊關(guān)閉廣告圖片，下面文本框中就是實(shí)現(xiàn)效果所需代碼：

var delta=0.015;
var collection;
var closeB=false;
function floaters() {
  this.items = [];
  this.addItem = function(id,x,y,content)
      {
     document.write(‘<DIV id=’+id+’ style=”Z-INDEX: 10; POSITION: absolute;  width:80px; height:60px;left:’+(typeof(x)==’string’?eval(x):x)+’;top:’+(typeof(y)==’string’?eval(y):y)+'”>’+content+'</DIV>’);
   
     var newItem    = {};
     newItem.object   = document.getElementById(id);
     newItem.x    = x;
     newItem.y    = y;

     this.items[this.items.length]  = newItem;
      }
  this.play = function()
      {
     collection    = this.items
     setInterval(‘play()’,30);
      }
  }
  function play()
  {
   if(screen.width<=800 || closeB)
   {
    for(var i=0;i<collection.length;i++)
    {
     collection[i].object.style.display = ‘none’;
    }
    return;
   }
   for(var i=0;i<collection.length;i++)
   {
    var followObj  = collection[i].object;
    var followObj_x  = (typeof(collection[i].x)==’string’?eval(collection[i].x):collection[i].x);
    var followObj_y  = (typeof(collection[i].y)==’string’?eval(collection[i].y):collection[i].y);

    if(followObj.offsetLeft!=(document.body.scrollLeft+followObj_x)) {
     var dx=(document.body.scrollLeft+followObj_x-followObj.offsetLeft)*delta;
     dx=(dx>0?1:-1)*Math.ceil(Math.abs(dx));
     followObj.style.left=followObj.offsetLeft+dx;
     }

    if(followObj.offsetTop!=(document.body.scrollTop+followObj_y)) {
     var dy=(document.body.scrollTop+followObj_y-followObj.offsetTop)*delta;
     dy=(dy>0?1:-1)*Math.ceil(Math.abs(dy));
     followObj.style.top=followObj.offsetTop+dy;
     }
    followObj.style.display = ”;
   }
  }
  function closeBanner()
  {
   closeB=true;
   return;
  }

var theFloaters  = new floaters();
//
theFloaters.addItem(‘followDiv1′,’document.body.clientWidth-100′,0,'<a onClick=”closeBanner();” href=http://www.dfeng.net target=_blank><img src=ad/doublead/right.gif width=100 height=554 border=0></a><br><br><img src=ad/doublead/close.gif onClick=”closeBanner();”>’);
theFloaters.addItem(‘followDiv2′,0,0,'<a onClick=”closeBanner();” href=http://www.dfeng.net target=_blank><img src=ad/doublead/ad_ad.gif width=100 height=400 border=0 ></a><br><br><img src=ad/doublead/close.gif onClick=”closeBanner();”>’);
theFloaters.play();
把上面的代碼另存為一個(gè)JS文件，然后在想實(shí)現(xiàn)此效果的頁(yè)面用 調(diào)用即可，*代表你另存的文件名！注意修改廣告圖片地址和連接地址！

浮動(dòng)對(duì)聯(lián)廣告—之左側(cè)代碼

如果您想只有一側(cè)顯示的話,下面是實(shí)現(xiàn)左側(cè)效果所需代碼：

var ad_float_left_src =”圖片地址”;
var ad_float_left_url =”地址”;
var ad_float_left_type = “”;
document.ns = navigator.appName == “Microsoft Internet Explorer”

var imgheight_close
var imgleft
window.screen.width>800 ? imgheight_close=120:imgheight_close=120
window.screen.width>800 ? imgleft=8:imgleft=122
function myload()
{
myleft.style.top=document.body.scrollTop+document.body.offsetHeigh
t-imgheight_close;
myleft.style.left=imgleft;
leftmove();
}
function leftmove()
{
myleft.style.top=document.body.scrollTop+document.body.offsetHeigh
t-imgheight_close;
myleft.style.left=imgleft;
setTimeout(“leftmove();”,50)
}

function MM_reloadPage(init) {  //reloads the window if Nav4
resized
  if (init==true) with (navigator) {if ((appName==”Netscape”)&&
(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight;
onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!
=document.MM_pgH) location.reload();
}
MM_reloadPage(true)

function close_float_left(){
myleft.style.visibility=’hidden’;
}

document.write(“<div id=myleft style=’position:
absolute;width:80;top:300;left:5;visibility: visible;z-index: 1′>”
+”<style>”
+”A.closefloat:link,A.refloat:visited {text-
decoration:none;color:#000000;font-size:12px}”
+”A.closefloat:active,A.refloat:hover {text-decoration:underline;color:#0000FF;font-size:12px}”
+”</style>”
+”<table border=0 cellpadding=0 cellspacing=0><tr><td>”);

if(document.ns){
if(ad_float_left_type!=”swf”)
document.write(“<a href='” + ad_float_left_url + “‘ target
= ‘_blank’><img src='” + ad_float_left_src + “‘ WIDTH=88
height=31 border=0></a>”);
else
document.write(“<EMBED src='” + ad_float_left_src + “‘
quality=high  WIDTH=80 HEIGHT=80 TYPE=’application/x-shockwave-
flash’ id=changhongout ></EMBED>”);

document.write(“</td></tr><tr><td width=80 height=20
align=right><a href=’ja;vascript:close_float_left();void(0);’
class=closefloat><b><font color=#ff0000>關(guān)閉</font></b></a></td></tr>”
+”</table>”
+”</div>”);

myload()}
把上面的代碼另存為一個(gè)*.JS文件，然后在想實(shí)現(xiàn)此效果的頁(yè)面用

<script  src=”*.js”></SCRIPT>
調(diào)用即可，*代表你另存的文件名！注意修改廣告圖片地址和連接地址！相應(yīng)的參數(shù)可以根據(jù)頁(yè)面自行調(diào)整。