--------->>>演示说明<<<---------
--------->>>程序源码<<<---------
<SCRIPT language=JavaScript> <!-- if (document.all){ //To add more stars simply add more colours in below array!! colours=new Array('ff0000','00ff00','3366ff','ff00ff','ffa500','ffffff','fff000') //Alter nothing below!! amount=colours.length; YgetDelay=0,XgetDelay=0,Ydelay=0,Xdelay=0,step=0.2,currStep=0,my=0,mx=0; document.write('<div id="ie" style="position:absolute;top:0;left:0;"><div style="position:relative">'); for (i=0; i < amount; i++) document.write('<div id="iestars" style="position:absolute;top:0px;left:0px;height:50px;width:50px;font-family:Courier New;font-size:5px;color:'+colours[i]+';padding-top:20px;text-align:center">.</div>'); document.write('</div></div>'); ini=1; gstep=1; function iMouse(){ my=event.y;mx=event.x; } document.onmousemove=iMouse function dim(){ ini-=gstep; dt=setTimeout('dim()',10); if (ini < 2){ clearTimeout(dt); glow(); } } function glow(){ ini+=gstep; gt=setTimeout('glow()',10); if (ini > 14){ clearTimeout(gt); dim(); } } function stars(){ ie.style.top=document.body.scrollTop; for (i=0; i < amount; i++) { var layer=iestars[i].style; layer.filter='glow(color='+colours[i]+', strength='+ini+')'; layer.top= Ydelay+100*Math.sin((5*Math.sin((currStep-15.99)/10))+i*70)*Math.sin((currStep)/10)*Math.cos((currStep+i*25)/10); layer.left=Xdelay+180*Math.cos((5*Math.sin((currStep-15.99)/10))+i*70)*Math.sin((currStep)/10)*Math.cos((currStep+i*25)/10); } currStep+=step; } function delay(){ Ydelay = YgetDelay+=(my-YgetDelay)*1/20; Xdelay = XgetDelay+=(mx-XgetDelay)*1/20; stars(); setTimeout('delay()',10); } delay(); glow(); } //--> </SCRIPT>
--------->>>所需文件<<<---------
查看黑色背景下的效果。源码插入到网页源码的任意位置即可。