<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>幻灯片切换</title> <style> .body{text-align:center;} li,ul{list-style:none;margin:0px;padding:0px;} #showPlay{ text-align:left; width:890px; overflow:hidden; margin:0px auto; height:350px; position:relative; } #dopics{ opacity: 0.4; background: none repeat scroll 0 0 #000; height: 10px; padding: 5px 10px; position: absolute; width:870px; text-align:right; clear:both; bottom:0px; } #dopics span{ opacity: 0.4; background: none repeat scroll 0 0 #FFFFFF; cursor: pointer; display: inline-block; height: 10px; margin-left: 5px; width: 25px; text-align:center; color:#000; font-weight:bold; font-size:10px; height:10; line-height:10px; } </style> </head> <body> <div id="showPlay"> <div id="pics"> <ul> <li><a href=""><img src="slideimg_1.jpg" /></a></li> <li><a href=""><img src="slideimg_2.jpg" /></a></li> <li><a href=""><img src="slideimg_3.jpg" /></a></li> <li><a href=""><img src="slideimg_4.jpg" /></a></li> <li><a href=""><img src="slideimg_5.jpg" /></a></li> <li><a href=""><img src="slideimg_6.jpg" /></a></li> </ul> </div> <div id="dopics"> </div> </div> <script> var time; var n=1; var ul=document.getElementById("pics").getElementsByTagName("ul")[0]; //5秒钟进行交替图片 time=setInterval("run()",5000); //显示图片 function run(){ ++n; if(n>6){ n=1; } ul.innerHTML="<li><a href=''><img src='slideimg_"+n+".jpg' /></a></li>"; } //根据图片来生成对应的按钮 function getBtn(){ var liList=document.getElementById("pics").getElementsByTagName("li"); var dopics=document.getElementById("dopics"); var str=""; for(var i=0;i<liList.length;i++){ str+="<span>"+(i+1)+"</span>"; } //alert(str); dopics.innerHTML=str; } getBtn(); //鼠标移到按钮上时 var spanList=document.getElementById("dopics").getElementsByTagName("span"); for(var j=1;j<spanList.length+1;j++){ spanList[j-1].onmouseover=function(){ clearInterval(time); //这里的this.innerHTML不能使j因为循环完的j=7 ul.innerHTML="<li><a href=''><img src='slideimg_"+this.innerHTML+".jpg' /></a></li>"; time=setInterval("run()",9000); } } </script> </body> </html>