多幅图片切换的特效
<HTML><HEAD><META http-equiv="Content-Type" content="text/html; charset=gb2312"><TITLE>多幅图片切换的特效</TITLE><SCRIPT type="text/javascript">var count=1;function ppt(){for(var i=1;i<5;i++){if(count==i){document.getElementById("pic"+count).style.display="block";}else{document.getElementById("pic"+i).style.display="none";}}count++;if(count==5){count=1;}}setInterval("ppt()",1800)</SCRIPT></HEAD><BODY><DIV id="pic1"><img src="images/pic1.jpg" width="400" height="313"></DIV><DIV id="pic2" style="display:none"><IMG src="images/pic2.jpg" width="400" height="300"></DIV><DIV id="pic3" style="display:none"><IMG src="images/pic3.jpg" width="400" height="300"></DIV><DIV id="pic4" style="display:none"><IMG src="images/pic4.jpg" width="400" height="300"></DIV></BODY></HTML>
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效果图：
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