悬浮
<style>
.floatad{ position:fixed; left:10px; bottom:10px;}
.floatad .close{ text-align:left}
.floatad .close a{ font-size:12px; text-decoration:none; color:#000;}
.floatad .box img{}
</style>
<script>
function turnoff(obj){
document.getElementById(obj).style.display="none";
}
</script>
<div class="floatad" id="floatad">
<div class="close"><a href="javascript:void(0);" title="点击关闭" onclick="javascript:turnoff('floatad')">[X]</a> </div>
<div class="box"><a href="#" target="_blank"><img src="https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/img/logo/bd_logo1_31bdc765.png" /></a></div>
</div>
漂浮
<style type="text/css">
#img1{position:absolute;top:43px;left:2px;z-index:10;}
#img1 div{text-align:right;font-size:12px;}
#img1 div a:link{text-decoration:none;}
#img1 div a:hover{color:red;text-decoration:none;}
#img1 img{}
</style>
<div id="img1" onmouseover="pause_resume()" onmouseout="pause_resume()">
<div><a href="javascript:void(0);" onclick="closediv()" title="点击关闭">关闭</a></div>
<a href="http://www.msxindl.com/" target="_blank"><img src="/templets/moban/imgcssjs/code3.jpg" alt="可关闭的自由漂浮的图片广告特效代码"></a>
</div>
<script type="text/javascript">
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;
var divid = img1; //浮动DIV的ID.
divid.style.top = yPos;
function changePos(){
width = document.body.clientWidth;
height = document.body.clientHeight;
Hoffset = divid.offsetHeight;
Woffset = divid.offsetWidth;
divid.style.left = xPos + document.body.scrollLeft + "px";
divid.style.top = yPos + document.body.scrollTop + "px";
if(yon){yPos = yPos + step;}else{yPos = yPos - step;}
if(yPos < 0){yon = 1;yPos = 0;}
if(yPos >= (height - Hoffset)){yon = 0; yPos = (height - Hoffset);}
if(xon){xPos = xPos + step;}else{xPos = xPos - step;}
if(xPos < 0){xon = 1;xPos = 0;}
if(xPos >= (width - Woffset)){xon = 0; xPos = (width - Woffset);}
}
function start(){
divid.visibility = "visible";
interval = setInterval('changePos()',delay);
}
function pause_resume(){
if(pause){
clearInterval(interval);
pause = false;}
else{
interval = setInterval('changePos()',delay);
pause = true;
}
}
function closediv(){
clearInterval(interval);
divid.style.display = "none";
}
start();
</script>