爬来爬去的苍蝇

加入如下代码到body区域
<SCRIPT LANGUAGE="JavaScript"> <!-- Begin var ns = (document.layers)?1:0; var imgwidth=40; var imgheight=40; var button = Array(); button[0]=new Image(); button[0].src="fly_OFF.gif"; button[1]=new Image(); button[1].src="fly_ON.gif"; var text="<table width=10 bgcolor=#ffffff><td><a href='javascript:showhideAnimation()'><center><img name='Button' src='"+button[0].src+"' width='"+imgwidth+"' height='"+imgheight+"' border='0'></center></a></font></td></table>" if (ns) { document.write("<LAYER NAME='FlyOnOff' LEFT=0 TOP=0>"+text+"</LAYER>"); horz=".left"; vert=".top"; docStyle="document."; styleDoc=""; innerW="window.innerWidth"; innerH="window.innerHeight"; offsetX="window.pageXOffset"; offsetY="window.pageYOffset"; }else { document.write("<div id='FlyOnOff' style='position:absolute; visibility:show; left:235px; top:-50px; z-index:2'>"+text+"</div>"); horz=".pixelLeft"; vert=".pixelTop"; docStyle=""; styleDoc=".style"; innerW="document.body.clientWidth"; innerH="document.body.clientHeight"; offsetX="document.body.scrollLeft"; offsetY="document.body.scrollTop"; } function checkLocation() { objectXY="FlyOnOff"; var availableX=eval(innerW); var availableY=eval(innerH); var currentX=eval(offsetX); var currentY=eval(offsetY); x=availableX-(imgwidth+30)+currentX; y=availableY-(imgheight+20)+currentY; eval(docStyle + objectXY + styleDoc + horz + "=" + x); eval(docStyle + objectXY + styleDoc + vert + "=" + y); } setInterval('checkLocation()', 10); (document.layers)?window.captureEvents(Event.MOUSEMOVE):0; (document.layers)?window.onMouseMove=getMousePosition:document.onmousemove=getMousePosition; var Dot_Ro=60; var Dot_Theta=0; var Dot_Speed; var Dot_Direction=1; var Dot_x=0; var Dot_y=0; var alpha; var mult; var picX = 20; var picY = 100; var mouseX = 0; var mouseY = 0; var step = 10; var speed = 100; var dir = Array(); dir[-4]="fly_3.gif"; dir[-1]="fly_6.gif"; dir[-2]="fly_5.gif"; dir[-3]="fly_4.gif"; dir[3]="fly_8.gif"; dir[4]="fly_7.gif"; dir[1]="fly_2.gif"; dir[2]="fly_1.gif"; dir[0]=""; var img = Array(); for (var i=-4; i<5; i++){ img[i]=new Image(); img[i].src=""+dir[i]; } if (ns) { document.write("<LAYER NAME='FlyDiv' LEFT=0 TOP=0><img src="+img[1].src+" name='pic'></LAYER>"); }else { document.write("<div id='FlyDiv' style='position:absolute'>"); document.write("<img name='pic' src=" + img[1].src + "></div>"); } function display(direction) { if (ns) { document.pic.src = img[direction].src; }else{ pic.src = img[direction].src; } } function getMousePosition(e) { mouseY=(ns)?e.pageY:window.event.y + document.body.scrollTop; mouseX=(ns)?e.pageX:window.event.x + document.body.scrollLeft; } function calcNewPos() { var dist=Math.sqrt(Math.pow(mouseY-picY,2) + Math.pow(mouseX-picX,2)); Dot_Speed=Math.PI/15; Dot_Theta+=Dot_Direction*Dot_Speed; Dot_x=mouseX+Dot_Ro*Math.cos(Dot_Theta); Dot_y=mouseY+Dot_Ro*Math.sin(Dot_Theta); var arg = (Dot_y-picY) / (Dot_x-picX); mult = (Dot_x - picX < 0)? mult = -1:1; alpha = Math.atan(arg); var dx = mult * step * Math.cos(alpha); var dy = mult * step * Math.sin(alpha); picX += dx; picY += dy; } function showhideAnimation() { if (ns) { document.layers['FlyDiv'].visibility=document.layers['FlyDiv'].visibility=="hide"?"show":"hide"; document.Button.src = document.layers['FlyDiv'].visibility=="hide"?button[1].src:button[0].src; }else { FlyDiv.style.visibility=="hidden"?FlyDiv.style.visibility = "visible":FlyDiv.style.visibility = "hidden"; Button.src = FlyDiv.style.visibility=="hidden"?button[1].src:button[0].src; } } function gs9768() { calcNewPos(); if (ns) { document.layers['FlyDiv'].left = picX; document.layers['FlyDiv'].top = picY; }else{ FlyDiv.style.left = picX - pic.width / 2; FlyDiv.style.top = picY - pic.height / 2; } alpha=-180*alpha/Math.PI; alpha+=22.5; var OK=0; for(var i=0; (i<4)&& !OK; i++){ if (alpha<-Math.PI+45*i){ display(mult*(i+1)); OK=1; } } } function ChangeDotDirection() { Dot_Direction=-Dot_Direction; Dot_Theta+=Math.PI; } setInterval('gs9768()', speed); setInterval('ChangeDotDirection()', speed*50); // End --> </SCRIPT>

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