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<!-- http://bbs.downcodes.com--> <!-- 完成此效果需要把下面代码放置<body>区域中--> <divalign="center"> <SCRIPT language=JavaScript > <!-- //------------------------ 启动自定义变量 ----------------- ------// //===定位===// var left = 100; // 起始左侧位置 var top = 20; // 起始左侧位置 //=== 曲线和距离 ===// var topInc = 5; // 顶部位置增量 var leftInc = 5; // 左侧位置递增 /* 使水平曲线和垂直曲线相同,以.. .. 获得没有曲线的不断增加的间隙。 */ var hor_curve = 20; // 水平曲线 - 0 表示无曲线 var ver_curve = -20; // 垂直曲线 - 0 表示无曲线 //=== 计时和其他 ===// var noTimes = 50; // 图片显示的次数 var waitTime = 1; // 时间延迟 var layer = 2; // 图层级别 var picture = '/images/logo.gif'; // 要显示的图片(图片越小效果越好) var start_retracted= true; // 启动图像缩回(true / false) vartract= true; // 展开后从后面缩回 (true / false) //=== 淡入淡出选项 (仅 IE 用户可以看到淡入淡出) ===// var fade = true; // 逐渐淡入淡出 (true / false) - 仅在撤回 =true 时有效 var fd_destop = 0; // 目标透明度级别(即 80,对于大部分固体) var fd_rate = 10; // 透明度更改之间的时间(以毫秒为单位)(最好低于 100) var fd_delta = 5; // 每次变化量(即 5,透明度变化 5%) var event_init = 'onClick'; // 启动脚本的事件 var left_formula = '(left + leftInc) + ((count/100) * hor_curve)'; // 左侧位置公式 var top_formula = '(top + topInc) + ((count/100) * ver_curve)'; // 顶部位置公式 //------------------------------------ 结束自定义变量 ----------------- ------// //--------------------- 不要编辑超出此点! ----------------------------------// var 计数 = 0; var count2 = 0; var timeOutVal = 等待时间 * 10; var txt;变量图像; var 图像名称; varlay = 新数组;函数 addLayer(){ left = eval(left_formula);顶部 = eval(top_formula); txt = "<div id='图层" + count + "' style='位置:绝对; 可见性:隐藏; 左:" + 左 + "; 顶部:" + 顶部 + "; z 索引:" + 图层 + “'>”; txt += "<a href='#' " + event_init + "='replay()'><img src='" + picture + "' border=0 style='filter:alpha(opacity=100)' 名称= '图像" + 计数 + "'></a>"; txt += "</div>";文档.write(txt); lay[count]=new lib_obj("图层"+count); } 函数 logoCurveInit(){ while (count < noTimes) { addLayer();计数++; } 计数 = 0;放置[0].showIt(); if (!start_retracted) animate(); } 函数 animate(){ if (start_retracted) { if (!retract){ if (count > 0){ setTimeout('animate()',timeOutVal); }放置[计数].hideIt();数数 - ; } } else{ if (count >= 0){ setTimeout('animate()',timeOutVal);放置[计数].showIt(); if (count != 0) fadeImage();数数 - ; } } 如果(收回){ if(count==0)retractIt(); } } else{ if (count < noTimes){ setTimeout('animate()',timeOutVal);放置[计数].showIt(); if (count != noTimes-1 &&撤回) fadeImage();计数++; } if (retract){ if (count == noTimes) receiveIt(); } } } function replay(){ if ((count == noTimes || (count == 0 || count == -1)) &&(count2 == noTimes-1 || count2 == 0)){ start_retracted = !start_retracted; // 使值与实际值相反 make_all_visible(); if (start_retracted){ 计数 = noTimes-1; } 否则 { 计数 = 0; } 动画(); } } functiontractIt(){ if (start_retracted) { // 如果徽标未缩回(显示所有图层) if (count2 > 0){ setTimeout('retractIt()',timeOutVal);放置[count2].hideIt();计数2——; } } else{ // 如果标志被收回(只显示第一层) if (count2 < noTimes-1){ setTimeout('retractIt()',timeOutVal);放置[count2].hideIt();计数2++; } } } function fadeImage(){ if (fade){ if (count >= 0 && count <= noTimes){ image = document.images['Image' + count]; nereidFade(图像,fd_destop,fd_rate,fd_delta); } } } function make_all_visible(){ for (var i = 0; i< noTimes ; i++){ if (document.images['Image' + i].style.MozOpacity){ document.images['Image' + i] .style.MozOpacity=100; } else if (document.images['Image' + i].filters) { document.images['Image' + i].filters.alpha.opacity = 100; } } } ////****************(DHTMLCentral.com)****************//// 函数 check_browser( ){ this.ver=navigator.appVersion this.agent=navigator.userAgent this.dom=document.getElementById?1:0 this.opera5=this.agent.indexOf("Opera 5")>-1 this.ie5=( this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0; this.ie4=(document.all && !this.dom && !this.opera5)?1:0; this.ie=this.ie4||this.ie5||this.ie6 this.mac=this.agent.indexOf("Mac")>-1 this.ns6=(this.dom && parseInt(this.ver) > = 5) ?1:0; this.ns4=(document.layers && !this.dom)?1:0; this.bw=(this.ie6||this.ie5||this.ie4||this.ns4||this.ns6||this.opera5) 返回这个 } bw=new check_browser() function show_message(txt){alert (TXT); return false} function lib_obj(obj,nest){ if(!bw.bw) return show_message('旧浏览器') Nest=(!nest) ? "":'文档.'+nest+'.' this.evnt=bw.dom? document.getElementById(obj): bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj):0; if(!this.evnt) return show_message('该图层不存在 ('+obj+')' +'- 如果您使用 Netscape,请检查标签的嵌套!') this.css=bw.dom||bw .ie4?this.evnt.style:this.evnt; this.ref=bw.dom||bw.ie4?document:this.css.document; this.x=parseInt(this.css.left)||this.css.pixelLeft||this.evnt.offsetLeft||0; this.y=parseInt(this.css.top)||this.css.pixelTop||this.evnt.offsetTop||0 this.w=this.evnt.offsetWidth||this.css.clip.width|| this.ref.width||this.css.pixelWidth||0; this.h=this.evnt.offsetHeight||this.css.clip.height|| this.ref.height||this.css.pixelHeight||0 this.c=0 if((bw.dom || bw.ie4) && this.css.clip) { this.c=this.css.clip; this.c=this.c.slice(5,this.c.length-1); this.c=this.c.split(' '); for(var i=0;i<4;i++){this.c[i]=parseInt(this.c[i])} } this.ct=this.css.clip.top||this.c[0 ]||0; this.cr=this.css.clip.right||this.c[1]||this.w||0 this.cb=this.css.clip.bottom||this.c[2]||this. h||0; this.cl=this.css.clip.left||this.c[3]||0 this.obj = obj + "对象"; eval(this.obj + "=this") 返回此 } lib_obj.prototype.showIt = function(){this.css.visibility="visible"} lib_obj.prototype.hideIt = function(){this.css.visibility= “隐藏”} lib_obj.prototype.writeIt = function(text,startHTML,endHTML){ if(bw.ns4){ if(!startHTML){startHTML=""; endHTML=""} this.ref.open("text/html"); this.ref.write(startHTML+text+endHTML); this.ref.close() }else this.evnt.innerHTML=text } ////****************(DHTMLCentral.com)************ ******//// /* 代码取自 DynamicDrive.com (Start)--> Gradual-Highlight Image Script II- 作者:J. Mark Birenbaum (birenbau@ugrad.cs.ualberta.ca) 完整版本脚本源,请访问 http://dynamicdrive.com */ nereidFadeObjects = new Object();nereidFadeTimers = new Object();函数 nereidFade(object, destOp, rates, delta){ if (!document.all)return if (object != "[object]"){ setTimeout("nereidFade("+object+","+destOp+","+rate+ ","+delta+")",0);返回;}clearTimeout(nereidFadeTimers[object.sourceIndex]); diff = destOp-object.filters.alpha.opacity;方向=1; if (object.filters.alpha.opacity > destOp){direction = -1;} delta=Math.min(direction*diff,delta); object.filters.alpha.opacity+=方向*delta; if (object.filters.alpha.opacity != destOp){ nereidFadeObjects[object.sourceIndex]=object; nereidFadeTimers[object.sourceIndex]=setTimeout("nereidFade(nereidFadeObjects["+object.sourceIndex+"],"+destOp+","+rate+","+delta+")",rate); } } // <-- 代码取自DynamicDrive.com(完) window.onload=new logoCurveInit(); //--> 结束隐藏 </SCRIPT><br><br><br><br><br><br><br><br> 用鼠标单击一张图片就可以看到非常好的效果! </div>