<script>

function CoolMenuControl(){

// 常规变量 this lastScrollX= this lastScrollY= this lastScrollW= this lastScrollH= this td_X= this td_Y= this td_W= this td_H= this td= this mouseon= this current=null this _namethis table_namethis menudiv_namethis menutable_namethis ml= this menuarray=new Array()this speedthis href=""

// 菜单项目 function menuitem(type value url target){ this type=type this value=value this url=url this target=target }

// 插入菜单 this insertmenu=function(type value url target){  this menuarray[this menuarray length]=new menuitem(type value url target) }

// 程序初试化 this init=function(name bdc bgc speed Alpha){  var in="" var cellcount= var lastcellcount= this _name=name+"" this table_name=name+"table" this menudiv_name=name+"menudiv" this menutable_name=name+"menutable" this speed=speed

for (i= i<this menuarray lengthi++)  {  if (this menuarray[i] type==" ") cellcount=cellcount+  if (this menuarray[i] type==" " || this menuarray[i] type==" ") {cellcount= }  if (lastcellcount<cellcount) {lastcellcount++}    }

//alert(cellcount)

stylecode="cursor:handfilter:Alpha(style= opacity="+Alpha+")background color:"+bgc

suspendcode="<DIV id="+this _name+" style= POSITION:absoluteonclick= "+name+" doClick() >"  +"<table id="+this table_name+" border= width= cellspacing= style= border collapse: collapse bordercolor= "+bdc+" >"  +"<tr><td height= style= "+stylecode+" ></td></tr></table></div>"document write(suspendcode)var fcell=true for (i= i<this menuarray lengthi++) {  switch(this menuarray[i] type)  {  case " ":  t=cellcount*  if (t<= )   {  in+= <tr><td colspan= class=ht onmouseover= +name+ href=" +this menuarray[i] url+ +this menuarray[i] target+ " >+this menuarray[i] value  }  else  {  in+= <tr><td colspan= +t+ class=ht onmouseover= +name+ href=" +this menuarray[i] url+ +this menuarray[i] target+ " >+this menuarray[i] value  }  fcell=true  break case " ":  t=(cellcount )*  if (t<= )   {  in+= <tr><td width= ><td onmouseover= +name+ href=" +this menuarray[i] url+ +this menuarray[i] target+ " >+this menuarray[i] value  }  else  {  in+= <tr><td width= ><td colspan= +t+ onmouseover= +name+ href=" +this menuarray[i] url+ +this menuarray[i] target+ " >+this menuarray[i] value  }  fcell=true  break   case " ":  if (fcell)  {  in+= <tr><td width= ><td onmouseover= +name+ href=" +this menuarray[i] url+ +this menuarray[i] target+ " >+this menuarray[i] value fcell=false  }  else  {  in+= <td width= ><td onmouseover= +name+ href=" +this menuarray[i] url+ +this menuarray[i] target+ " >+this menuarray[i] value }  break } } in= <div id= +this menudiv_name+ onmousemove=" +name+ doOver()"> + <table id= +this menutable_name+ border= cellpadding=" " class="menu" cellspacing=" "> +in  + </table></div>//alert(in) document write(in)

this lastScrollX= this lastScrollY= this posXY(eval(this menutable_name) cells[ ]) this td_W=eval(this menutable_name) cells[ ] scrollWidth+   this td_H=eval(this menutable_name) cells[ ] scrollHeight setInterval(name+" scrollback()" ) }

// 单击超连接 this doClick=function(){  //alert(this url)  var url=this href split(" ")  //alert(url[ ])  //alert(url[ ]) if (url[ ]=="") return

if (url[ ]=="_blank")  {window open(url[ ])}  else  {location href=url[ ]} }

// 滑动处理 this scrollback=function(){ diffX=this td_X diffY=this td_Y diffW=this td_W diffH=this td_H percentX=this speed*(diffX this lastScrollX)percentY=this speed*(diffY this lastScrollY)percentW=this speed*(diffW this lastScrollW)percentH=this speed*(diffH this lastScrollH)

if(percentX>)percentX=Math ceil(percentX)else percentX=Math floor(percentX)if(percentY>)percentY=Math ceil(percentY)else percentY=Math floor(percentY)if(percentW>)percentW=Math ceil(percentW)else percentW=Math floor(percentW)if(percentH>)percentH=Math ceil(percentH)else percentH=Math floor(percentH)

eval(this _name) style pixelTop+=percentYeval(this _name) style pixelLeft+=percentXeval(this table_name) style pixelWidth+=percentWeval(this table_name) style pixelHeight+=percentH

this lastScrollX=this lastScrollX+percentXthis lastScrollY=this lastScrollY+percentYthis lastScrollW=this lastScrollW+percentWthis lastScrollH=this lastScrollH+percentH}

// 滑出 this doOver=function() {  if (event srcElement tagName=="TD") {  if (event srcElement innerText length== || event srcElement innerText=="|") return  this posXY(event srcElement)  this td_W=event srcElement scrollWidth+    this td_H=event srcElement scrollHeight  } }

// 绝对定位 this posXY=function(obj){  _left=obj offsetLeft  _top=obj offsetTop  vParent = obj offsetParent   while (vParent tagName toUpperCase() != "BODY")  {  _left += vParent offsetLeft _top += vParent offsetTop vParent = vParent offsetParent }    this td_X=_left  this td_Y=_top }

// 关于 this about=function(){ alert("OK") }

} </script>

<head><meta equiv="Content Language" content="zh cn"><style>b{color=# cursor:hand} menu { font family:Arialcursor:Defaultfont size: pxborder: px # solidborder collapse: collapsefilter:progid:DXImageTransform Microsoft Gradient(gradienttype= startcolorstr=#ffffff endcolorstr=#dddddd)  progid:DXImageTransform Microsoft Shadow(direction= color=#cccccc strength= )} ht{ font weight:bold } </style><! 第一步 实体化X Menu类  用法:  var <实体变量>new CoolMenuControl() ><script language="javascript">var CoolMenu =new CoolMenuControl() var about=new Array() about[ ]="关于X Menu菜单nnAuthor:PuterJamnCopyright n转载请通知本人" about[ ]="关于作者nn"这家伙很懒 什么也没留下！！"

</script></head><body><! 第二步 建立菜单项目    用法:  <实体变量>insertmenu(类型 Html代码 链接网址 目标)  　类型 0代表菜单标题 1代表树型菜单子项目 2代表横向菜单子项目  　Html代码 显示在菜单上的Html代码  链接网址 不用多说了 网址或Javascript脚本  目标 默认为空 既不在本页打开 "_blank"代表在新的页面打开 例如:   CoolMenu insertmenu(" " "<img src=// blueidea /img/icon/arrow gif>新浪网" " "_blank") 　 ><script>CoolMenu insertmenu(" " "本站首页" "" "") CoolMenu insertmenu(" " "新闻中心" " "_blank") CoolMenu insertmenu(" " "文章中心" " "_blank") CoolMenu insertmenu(" " "图片欣赏" " "_blank") CoolMenu insertmenu(" " "软件下载" " "_blank") CoolMenu insertmenu(" " "娱乐欣赏" " "_blank") </script>

JS特效就是网页中实现的特殊效果或者特殊的功能的一种技术,是用网页脚本(javascript)来编写制作动态特殊效果。

比如图片切换，渐变等等，它为网页活跃了网页的气氛，有时候会起到一定的亲切力。

JavaScript 是根据 "ECMAScript"标准制定的网页脚本语言。这个标准由 ECMA 组织发展和维护。ECMA-262 是正式的 JavaScript 标准。

扩展资料：

能够具有交互性，能够包含更多活跃的元素，就有必要在网页中嵌入其它的技术。如：Javascript、VBScript、Document Object Model（DOM，文档对象模型）、Layers和 Cascading Style Sheets（CSS，层叠样式表）。

JavaScript 使网页增加互动性。JavaScript 使有规律地重复的HTML文段简化，减少下载时间。JavaScript 能及时响应用户的操作，对提交表单做即时的检查，无需浪费时间交由 CGI 验证。JavaScript 的特点是无穷无尽的，只要你有创意。