代码如下： <!--脚本说明：把如下代码加入<body>区域中:--> <script language="JavaScript"> <!-- IE4 = navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) >= 4; NS4 = navigator.appName.substring(0,8) == "Netscape" && parseInt(navigator.appVersion) >= 4; // checkBrowser() -- Checks whether the browser is new enough for some DynamicMovement ... function checkBrowser(){ if(IE4 || NS4){ return true; } return false; } // movableObj() -- Creates a new movable object function movableObj(startX, startY, endX, endY, delay, speed, refId){ this.sX = startX; this.sY = startY; this.eX = endX; this.eY = endY; this.de = delay; this.sp = speed; this.ref = refId; xL = endX - startX; yL = endY - startY; with (Math){ if(abs(xL) > abs(yL)){ this.xS = (xL > 0)?1:-1; this.yS = (yL > 0)?abs(yL / xL):-abs(yL / xL); this.howManySteps = abs(xL / speed); } else if(abs(yL) > abs(xL)){ this.yS = (yL > 0)?1:-1; this.xS = (xL > 0)?abs(xL / yL):-abs(xL / yL); this.howManySteps = abs(yL / speed); } else { this.yS = (yL > 0)?1:-1; this.xS = (xL > 0)?1:-1; this.howManySteps = abs(xL / speed); } } this.startMovement = startMovement; } // startMovement() -- starts the movement function startMovement(){ if(checkBrowser()){ if(IE4){ ref = document.all(this.ref).style; } else { ref = document[this.ref]; } doDynamicMovement(this.sX, this.sY, this.eX, this.eY, this.de, this.xS, this.yS, ref, this.sp, this.howManySteps); } } // doDynamicMovement() -- does the Dynamic Movement function doDynamicMovement(curX, curY, eX, eY, sp, xS, yS, ref, speed, hS){ if(Math.floor(hS - 1) != 0){ hS--; curX += xS * speed; curY += yS * speed; ref.left = Math.round(curX); ref.top = Math.round(curY); setTimeout("doDynamicMovement(" + curX + ", " + curY + ", " + eX + ", " + eY + ", " + sp + ", " + xS + ", " + yS + ", ref, " + speed + ", " + hS + ")", sp); } else { setPos(eX, eY, ref); } } // setPos() -- sets the end position accurately when doDynamicMovement has done its job function setPos(x, y, ref){ ref.left = x; ref.top = y; } // --> </script> <table width="600"> <tr> <td><font face="Verdana, Arial"><h3> </h3> <font size="2"><form> <div align="center"><center><p><input type="button" onClick="dynaText.startMovement()" value="按下去看看"> </p> </center></div> </form> <p> </font></p> <div id="wow" style="position: absolute; left: -100; top: -100; width: 300; font-family: Verdana, Arial; font-size: 20pt"><p>欢迎光临猎取网! </font></p> </div></td> </tr> </table> <script language="JavaScript"> <!-- // Here we define the movable object dynaText = new movableObj(-100,-100,80,180,10,10,"wow"); // --> </script>
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