<SCRIPT language=JavaScript> ns = (document.layers)?1:0; Clrs = new <!-- 可以根据页面背景颜色的不同调整下面的颜色代码--> Array('ff0000','00ff00','ffffff','ff00ff','ffa500','ffff00','00ff00','ffffff','ff00ff') yBase = 0; xBase = 0; step = 3; currStep = 0; Ypos = 0; Xpos = 0; if (ns){ for (i = 0; i < 14; i++) document.write('<LAYER NAME="n'+i+'" LEFT=0 TOP=0 CLIP="0,0,'+i/4+','+i/4+'"></LAYER>'); window.captureEvents(Event.MOUSEMOVE); function nMouse(evnt){ Ypos = evnt.pageY; Xpos = evnt.pageX; } window.onMouseMove = nMouse; } else{ document.write('<div style="position:absolute;top:0;left:0"><div style="position:relative">'); for (i=0; i < 14; i++) {document.write('<div id="me" style="position:absolute;top:0;left:0;width:'+i/4+';height:'+i/4+';font-size:'+i/4+'"></div>')} document.write('</div></div>'); function iMouse() { Ypos = event.y+document.body.scrollTop; Xpos = event.x+document.body.scrollLeft; } document.onmousemove = iMouse; } function Comet() { var yBase = (document.layers)?window.innerHeight/4:window.document.body.clientHeight/4; var xBase = (document.layers)?window.innerWidth/4:window.document.body.clientWidth/4; for (i = 0; i < 14; i++){ var randCol = Math.round(Math.random()*8); var layer = (document.layers)?document.layers['n'+i]:me[i].style; layer.top =Ypos + yBase*Math.cos((currStep+i*4)/12)*Math.cos(0.7+currStep/200); layer.left = Xpos + xBase*Math.sin((currStep+i*3)/10)*Math.sin(8.2+currStep/400); if (ns) layer.bgColor = Clrs[randCol]; else layer.background = Clrs[randCol]; } currStep += step; setTimeout("Comet()",10); } window.onload = Comet; </SCRIPT>