Скрипт вставляем в body:
 

<script language="JavaScript1.2"> <!-- var trailLength = 7 var path = "starblue.gif" var isIE = false,isNav = false,range = "all.",style = ".style",i,d = 0 var topPix = ".pixelTop",leftPix = ".pixelLeft",images,storage if (document.layers) { isNav = true,range = "layers.",style = "",topPix = ".top",leftPix = ".left" } else if (document.all) { isIE = true } function initTrail() { images = new Array() for (i = 0; i < parseInt(trailLength); i++) { images[i] = new Image() images[i].src = path } storage = new Array() for (i = 0; i < images.length*3; i++) { storage[i] = 0 } for (i = 0; i < images.length; i++) { (isIE) ? document.write('<div id="obj' + i + '" style="position: absolute; z-Index: 100; height: 0; width: 0"><img src="' + images[i].src + '"></div>') : document.write('<layer name="obj' + i + '" width="0" height="0" z-index="100"><img src="' + images[i].src + '"></layer>') } trail() } function trail() { for (i = 0; i < images.length; i++) { eval("document." + range + "obj" + i + style + topPix + "=" + storage[d]) eval("document." + range + "obj" + i + style + leftPix + "=" + storage[d+1]) d = d+2 } for (i = storage.length; i >= 2; i--) { storage[i] = storage[i-2] } d = 0 var timer = setTimeout("trail()",10) } function processEvent(e) { if (isIE) { storage[0] = window.event.y+document.body.scrollTop+10 storage[1] = window.event.x+document.body.scrollLeft+10 } else { storage[0] = e.pageY+12 storage[1] = e.pageX+12 } } if (isNav) { document.captureEvents(Event.MOUSEMOVE) } if (isIE || isNav) { //fantasyflash.narod.ru initTrail() document.onmousemove = processEvent //osw } //--> </script>

 Эффект змейки

<div id="dot0" style="position: absolute; visibility: hidden; height: 11; width: 11;"><img src="ball2.gif" height=11 width=11></div> <div id="dot1" style="position: absolute; height: 11; width: 11;"><img src="ball2.gif" height=11 width=11></div> <div id="dot2" style="position: absolute; height: 11; width: 11;"><img src="ball2.gif" height=11 width=11></div>//osw <div id="dot3" style="position: absolute; height: 11; width: 11;"><img src="ball2.gif" height=11 width=11></div> <div id="dot4" style="position: absolute; height: 11; width: 11;"><img src="ball2.gif" height=11 width=11></div> <div id="dot5" style="position: absolute; height: 11; width: 11;"><img src="ball2.gif" height=11 width=11></div> <div id="dot6" style="position: absolute; height: 11; width: 11;"><img src="ball2.gif" height=11 width=11></div> <script LANGUAGE="JavaScript"> <!-- var nDots = 7; if (document.all&&window.print) document.body.style.cssText="overflow-x:hidden;overflow-y:scroll"//osw var Xpos = 0; var Ypos = 0; var DELTAT = .01; var SEGLEN = 10; var SPRINGK = 10; var MASS = 1; var GRAVITY = 50; var RESISTANCE = 10; var STOPVEL = 0.1; var STOPACC = 0.1; var DOTSIZE = 11; var BOUNCE = 0.75; var isNetscape = navigator.appName=="Netscape"; var followmouse = true; var dots = new Array(); init(); function init() { var i = 0; for (i = 0; i < nDots; i++) { dots[i] = new dot(i); } if (!isNetscape) { } for (i = 0; i < nDots; i++) { dots[i].obj.left = dots[i].X; dots[i].obj.top = dots[i].Y; } if (isNetscape) { startanimate(); } else { setTimeout("startanimate()", 2000); } } function dot(i) { this.X = Xpos; this.Y = Ypos; this.dx = 0; this.dy = 0; if (isNetscape) { this.obj = eval("document.dot" + i); } else { this.obj = eval("dot" + i + ".style"); } } function startanimate() { setInterval("animate()", 20); } function setInitPositions(dots) { var startloc = document.all.tags("LI"); var i = 0; for (i = 0; i < startloc.length && i < (nDots - 1); i++) { dots[i+1].X = startloc[i].offsetLeft startloc[i].offsetParent.offsetLeft - DOTSIZE; dots[i+1].Y = startloc[i].offsetTop + startloc[i].offsetParent.offsetTop + 2*DOTSIZE; } dots[0].X = dots[1].X; dots[0].Y = dots[1].Y - SEGLEN; } function MoveHandler(e) { Xpos = e.pageX; Ypos = e.pageY; return true; } //fantasyflash.narod.ru function MoveHandlerIE() { Xpos = window.event.x + document.body.scrollLeft; Ypos = window.event.y + document.body.scrollTop; } if (isNetscape) { document.captureEvents(Event.MOUSEMOVE); document.onMouseMove = MoveHandler; } else { document.onmousemove = MoveHandlerIE; } function vec(X, Y) { this.X = X; this.Y = Y; } function springForce(i, j, spring) { var dx = (dots[i].X - dots[j].X); var dy = (dots[i].Y - dots[j].Y); var len = Math.sqrt(dx*dx + dy*dy); if (len > SEGLEN) { var springF = SPRINGK * (len - SEGLEN); spring.X += (dx / len) * springF; spring.Y += (dy / len) * springF; } } function animate() { var start = 0; if (followmouse) { dots[0].X = Xpos; dots[0].Y = Ypos; start = 1; } for (i = start ; i < nDots; i++ ) { var spring = new vec(0, 0); if (i > 0) { springForce(i-1, i, spring); } if (i < (nDots - 1)) { springForce(i+1, i, spring); } var resist = new vec(-dots[i].dx * RESISTANCE, -dots[i].dy * RESISTANCE); var accel = new vec((spring.X + resist.X)/ MASS, (spring.Y + resist.Y)/ MASS + GRAVITY); dots[i].dx += (DELTAT * accel.X); dots[i].dy += (DELTAT * accel.Y); if (Math.abs(dots[i].dx) < STOPVEL && Math.abs(dots[i].dy) < STOPVEL && Math.abs(accel.X) < STOPACC && Math.abs(accel.Y) < STOPACC) { dots[i].dx = 0; dots[i].dy = 0; } dots[i].X += dots[i].dx; dots[i].Y += dots[i].dy; var height, width; if (isNetscape) { height = window.innerHeight + document.scrollTop; width = window.innerWidth + document.scrollLeft; } else { height = document.body.clientHeight + document.body.scrollTop; width = document.body.clientWidth + document.body.scrollLeft; } if (dots[i].Y >= height - DOTSIZE - 1) { if (dots[i].dy > 0) { dots[i].dy = BOUNCE * -dots[i].dy; } dots[i].Y = height - DOTSIZE - 1; } if (dots[i].X >= width - DOTSIZE) { if (dots[i].dx > 0) { dots[i].dx = BOUNCE * -dots[i].dx; } dots[i].X = width - DOTSIZE - 1; } if (dots[i].X < 0) { if (dots[i].dx < 0) { dots[i].dx = BOUNCE * -dots[i].dx; } dots[i].X = 0; } dots[i].obj.left = dots[i].X; dots[i].obj.top = dots[i].Y; } } --> </script>

 Прикольный эффект

В статусбаре буквы сообщения по очереди выделяются заглавными
Текст вставляем в head:

<script language="Javascript"> <!-- var text = "Заходи на мой сайт!!!" var speed = 200 var x = 0 //osw function bb() { var a = text.substring(0,x) var b = text.substring(x,x+1).toUpperCase() var c = text.substring(x+1,text.length) //fantasyflash.narod.ru window.status = a + b + c if (x == text.length) { x = 0 } else { x++ } setTimeout("bb()",speed) } bb(); //--> </script>