javascript问题。急求，达人来救！！！

我用js写了个五星展开效果的页面，可是节点很多。展到最后就有的节点跑到浏览器外面了，但是跑到浏览器上面的节点滚动条也到不了。我想看到上面的节点。这个问题怎么办？达人解决有分赠送。

解决方案 »

  1.   

    代码太长。csdn不让传啊。nnd。
      

  2.   

    http://www.3lian.com/edu/2009/10-29/692630497725.html
    可以看看这个链接。就是要是节点在多点的话。节点就会跑到浏览器外面。但是浏览器滚动条不会自动加好导致节点不可见。就是这么个问题。
      

  3.   

    帮楼主传上来
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <title>网页特效---五星展开菜单显示效果</title>
    </head>
    <body>
    <style type="text/css">
    .dot         { position: absolute; width: 6; height: 6; visibility: hidden; background-color: red; font-size: 1px; cursor: pointer; cursor: hand; z-index: 100 }
    .dotoff      { position: absolute; width: 6; height: 6; visibility: hidden; background-color: gray; font-size: 1px; cursor:default; z-index: 100}
    .dotempty    { position: absolute; width: 6; height: 6; visibility: hidden; background-color: orange; font-size: 1px; cursor: pointer; cursor: hand; zindex: 100 }
    .caption     { position: absolute; visibility: hidden; font-family: Tahoma; color: black;
    font-size: 11px; text-align: Center; cursor: default; z-index:
    1 }
    body     { margin: 0px; background-color: white; }
    a      { color: silver; text-decoration: none }
    p      { font-size: 10px; font-family: tahoma; color: black }
    </style>
    <script language="JavaScript" type="text/javascript">
    function lib_bwcheck(){ //Browsercheck (needed)
    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)
    return this
    }
    var bw=new lib_bwcheck()
    // The code of this script is in the body, the browsercheck above is not used.
    </script>
    <script language="javascript1.2" type="text/javascript">
    <!--
    // DotMenu
    // provides cross-browser functionality
    //======================================
    function getObjectRef(name) {
    if(document.getElementById) return document.getElementById(name);
    else if(document.all) return document.all[name];
    else return null;
    }
    // general functions to assist the script
    //========================================
    function show(name) {
    var el = getObjectRef(name);
    if(el) el.style.visibility = "visible";
    }
    function hide(name) {
    var el = getObjectRef(name);
    if(el) el.style.visibility = "hidden";
    }
    function getWidth(name) {
    var el = getObjectRef(name);
    return el.offsetWidth;
    }
    function getHeight(name) {
    var el = getObjectRef(name);
    return el.offsetHeight;
    }
    function moveMe(name,x,y) {
    var el = getObjectRef(name);
    if(el) { el.style.top = parseInt(y); el.style.left = parseInt(x); }
    }
    function moveBy(name,x,y) {
    var el = getObjectRef(name);
    if(el) { el.style.top = parseInt(el.style.top) + parseInt(y); el.style.left = parseInt(el.style.left) + parseInt(x); }
    }
    // Creates the menu objects
    //==========================
    var menuCount = 0;
    function menuObject(name,x,y,caption, r, parent) {
    if ( (!document.getElementById&&!document.all) || navigator.userAgent.indexOf("Opera")>-1) return;
    document.write('<div id="divDot' + menuCount + '" class="dotempty" style="top: ' + y + '; left: ' + x + '"></div>');
    document.write('<div id="divCap' + menuCount + '" class="caption" style="top: 0; left: 0">' + caption + '</div>');
    this.name = name;
    this.parent = parent
    this.ref = "divDot" + menuCount;
    this.caption = "divCap" + menuCount
    if(r) this.radius = r;
    else this.radius = 400;
    this.subMenus = new Array();
    this.state = 0;
    this.moving = false;
    if(this.parent) this.action = "null";
    else this.action = "toggle";
    if(this.parent) this.startAngle = parent.startAngle;
    else this.startAngle = 0;
    getObjectRef(this.ref).objRef = this.name;
    this.show = function() { show(this.ref); }
    this.hide = function() { hide(this.ref); }
    this.moveMe = function(x,y) { if(this.parent) { x += this.parent.x(); y += this.parent.y(); } moveMe(this.ref,x,y); }
    this.moveBy = function(x,y) { moveBy(this.ref,x,y); }
    this.x = function() { return parseInt(getObjectRef(this.ref).style.left); }
    this.y = function() { return parseInt(getObjectRef(this.ref).style.top); }
    this.w = function() { return getWidth(this.ref); }
    this.h = function() { return getHeight(this.ref); }
    this.showCaption = function() {
    moveMe(this.caption, this.x() - (getWidth(this.caption)/2) + (this.w()/2), (this.y() + this.h()));
    show(this.caption);
    }
    this.hideCaption = function() {
    hide(this.caption);
    }
    this.setCaption = function(c) { getObjectRef(this.caption).innerHTML = c;}
    this.addItem = function(c,action,r) {
    getObjectRef(this.ref).className = "dot";
    if(!r) r = this.radius/2;
    var sub = new menuObject(this.name + ".subMenus[" + this.subMenus.length + "]",0,0,c,r,this);
    sub.parent = this;
    sub.action = action;
    sub.moveMe(0,0);
    this.subMenus[this.subMenus.length] = sub;
    return sub;
    }
    this.expand = function() {
    if(this.subMenus.length > 0) {
    var p = true;
    if(this.parent) {
    p = !this.parent.moving;
    for(var i=0; i<this.parent.subMenus.length;i++)
    p = p && ((this.parent.subMenus[i].state==0) || (this.parent.subMenus[i].state==this.parent.subMenus[i].subMenus.length)) && (this.parent.subMenus[i].moving==false);
    } else var o = false;
    if((!this.parent || this.parent.state == this.parent.subMenus.length) && p) {
    if(this.parent) this.collapseAll(this.name);
    var diff = 360 / this.subMenus.length;
    for(var i=0;i<this.subMenus.length;i++){
    this.subMenus[i].moveMe(0,0);
    this.subMenus[i].show();
    this.moving = true;
    this.subMenus[i].slide(this.subMenus[i].radius * cos(degToRad((diff*i)+this.startAngle)), this.subMenus[i].radius * sin(degToRad((diff*i)+this.startAngle)), this.name + ".subMenus[" + i + "].showCaption();" + this.name + ".moving=false;" + this.name + ".state+=1;");
    }
    if(this.parent){
    getObjectRef(this.parent.ref).style.filter = "alpha (opacity=33)";
    getObjectRef(this.parent.ref).style.MozOpacity = "33%";
    getObjectRef(this.parent.ref).className = "dotoff";
    getObjectRef(this.parent.caption).style.filter = "alpha (opacity=33)";
    getObjectRef(this.parent.caption).style.MozOpacity = "33%";
    for(i=0;i<this.parent.subMenus.length;i++) {
    getObjectRef(this.parent.subMenus[i].ref).style.filter = "alpha (opacity=66)";
    getObjectRef(this.parent.subMenus[i].ref).style.MozOpacity = "66%";
    getObjectRef(this.parent.subMenus[i].caption).style.filter = "alpha (opacity=66)";
    getObjectRef(this.parent.subMenus[i].caption).style.MozOpacity = "66%";
    }
    if(this.parent.parent) {
    for(i=0;i<this.parent.parent.subMenus.length;i++) {
    getObjectRef(this.parent.parent.subMenus[i].ref).style.filter = "alpha (opacity=33)";
    getObjectRef(this.parent.parent.subMenus[i].ref).style.MozOpacity = "33%";
    getObjectRef(this.parent.parent.subMenus[i].ref).className = "dotoff";
    getObjectRef(this.parent.parent.subMenus[i].caption).style.filter = "alpha (opacity=33)";
    getObjectRef(this.parent.parent.subMenus[i].caption).style.MozOpacity = "33%";
    }
    getObjectRef(this.parent.parent.ref).style.MozOpacity = "33%";
    getObjectRef(this.parent.parent.ref).style.MozOpacity = "33%";
    getObjectRef(this.parent.parent.ref).className = "dotoff";
    }
    }
    getObjectRef(this.ref).style.filter = "alpha (opacity=66)";
    getObjectRef(this.caption).style.filter = "alpha (opacity=66)";
    getObjectRef(this.ref).style.MozOpacity = "66%";
    getObjectRef(this.caption).style.MozOpacity = "66%";
    }
    }
    }
    this.collapse = function() {
    var p = true;
    p = !this.moving;
    for(var i=0; i<this.subMenus.length;i++)
    p = p && (this.subMenus[i].state==0)  && (this.subMenus[i].moving==false);
    if(p && this.subMenus.length > 0) {
    for(var i=0;i<this.subMenus.length;i++){
    this.subMenus[i].hideCaption();
    this.moving = true;
    this.subMenus[i].slide(0, 0, this.name + ".subMenus[" + i + "].hide();" + this.name + ".moving=false;" + this.name + ".state-=1;");
    }
      

  4.   

    （续）
    if(this.parent){
    getObjectRef(this.parent.ref).style.filter = "alpha (opacity=66)";
    getObjectRef(this.parent.ref).style.MozOpacity = "66%";
    if(this.parent.subMenus.length != 0)
    getObjectRef(this.parent.ref).className = "dot";
    else
    getObjectRef(this.parent.ref).className = "dotempty";
    getObjectRef(this.parent.caption).style.filter = "alpha (opacity=66)";
    getObjectRef(this.parent.caption).style.MozOpacity = "66%";
    for(i=0;i<this.parent.subMenus.length;i++) {
    getObjectRef(this.parent.subMenus[i].ref).style.filter = "alpha (opacity=100)";
    getObjectRef(this.parent.subMenus[i].ref).style.MozOpacity = "100%";
    if(this.parent.subMenus[i].subMenus.length != 0)
    getObjectRef(this.parent.subMenus[i].ref).className = "dot";
    else
    getObjectRef(this.parent.subMenus[i].ref).className = "dotempty";
    getObjectRef(this.parent.subMenus[i].caption).style.filter = "alpha (opacity=100)";
    getObjectRef(this.parent.subMenus[i].caption).style.MozOpacity = "100%";
    }
    if(this.parent.parent) {
    for(i=0;i<this.parent.parent.subMenus.length;i++) {
    getObjectRef(this.parent.parent.subMenus[i].ref).style.filter = "alpha (opacity=66)";
    getObjectRef(this.parent.parent.subMenus[i].ref).style.MozOpacity = "66%";
    if(this.parent.parent.subMenus[i].subMenus.length != 0)
    getObjectRef(this.parent.parent.subMenus[i].ref).className = "dot";
    else
    getObjectRef(this.parent.parent.subMenus[i].ref).className = "dotempty";
    getObjectRef(this.parent.parent.subMenus[i].caption).style.filter = "alpha (opacity=66)";
    getObjectRef(this.parent.parent.subMenus[i].caption).style.MozOpacity = "66%";
    }
    }
    }
    getObjectRef(this.ref).style.filter = "alpha (opacity=100)";
    getObjectRef(this.caption).style.filter = "alpha (opacity=100)";
    getObjectRef(this.ref).style.MozOpacity = "100%";
    getObjectRef(this.caption).style.MozOpacity = "100%";
    }
    }
    this.collapseAll = function(except) {
    for(var i=0;i<this.parent.subMenus.length;i++) {
    if(this.parent.subMenus[i].name!=except && this.parent.subMenus[i].state==this.parent.subMenus[i].subMenus.length) {
    this.parent.subMenus[i].collapse();
    }
    }
    }
    this.toggle = function(e) {
    if(document.all) id = window.event.srcElement;
    else id = e.target;
    var dot = eval(id.objRef);
    if(dot.state==0 && !dot.moving) dot.expand();
    else if(dot.state==dot.subMenus.length && !dot.moving) dot.collapse()
    }
    this.doAction = function(e) {
    if(document.all) id = window.event.srcElement;
    else id = e.target;
    var dot = eval(id.objRef);
    if(dot.action == "toggle") dot.toggle(e);
    else eval(dot.action);
    }
    //change these if you want to change the events that trigger the actions
    //========================================================================
    //getObjectRef(this.ref).onmousemove = this.toggle;
    getObjectRef(this.ref).onmouseup = this.doAction;
    this.slide = function(xx,yy,func) {
    if(!func) func = "";
    var px = this.parent.x();
    var py = this.parent.y();
    var x = xx - this.x() + px;
    var y = yy - this.y() + py;
    var d = sqrt(square(xx-this.x() + px) + square(yy-this.y() + py));
    var v = d/8;
    if(v<1) v = 1;
    if( (Math.abs(x) < v) && (Math.abs(y) < v) ) {
    moveMe(this.ref,xx + px,yy + py);
    if(func != "") eval(func);
    } else {
    var a = round(atan(x,y));
    dx = round(v * cos(degToRad(a)));
    dy = round(v * sin(degToRad(a)));
    this.moveBy(dx,dy);
    setTimeout(this.name + ".slide(" + xx + "," + yy + ", '" + func + "');",10);
    }
    }
    // Preoading the windows filters.
    if (menuCount==0 && document.all) document.all[this.ref].style.filter = "alpha (opacity=100)";
    menuCount++;
    return this;
    }
    // Math functions
    //================
    var pi = Math.PI;
    function square(x) { return (x*x); }
    function sqrt(x) { return Math.sqrt(x); }
    function round(x) { return Math.round(x); }
    function rand(x,y) { return (round(Math.random()*(y-x)) + x); }
    function cos(x) { return Math.cos(x) }
    function sin(x) { return Math.sin(x) }
    function degToRad(x) { return ( x/(360/(2*pi)) ); }
    function radToDeg(x) { return ( x*(360/(2*pi)) ); }
    function atan(s,t) {
    if( s == 0.0 && t > 0.0)
    angle = 90.0;
    else if(s == 0.0 && t < 0.0)
    angle = 270.0;
    else if (s < 0.0 )
    angle = 180.0 + radToDeg(Math.atan(t/s));
    else if (s > 0.0 && t < 0.0)
    angle = 360.0 + radToDeg(Math.atan(t/s));
    else {
    if(s==0.0) s=0.00001;
    angle = radToDeg(Math.atan(t/s));
    }
    if(angle < 0.0) angle += 360.0;
    return angle;
    }
    //get dimentions of the page
    if(document.all) pageWidth = document.body.offsetWidth-20;
    else pageWidth = innerWidth;
    if(document.all) pageHeight = document.body.offsetHeight-4;
    else pageHeight = innerHeight;
    //Create main menu
    var menu = new menuObject("menu",pageWidth/2,pageHeight/2,"DhtmlCentral Site Map",pageHeight/2);
    menu.startAngle = -90;
    //show menu and caption
    menu.show();
    menu.showCaption();
    //Add submenus
    menu.addItem("news","window.open('/news')");
    menu.addItem("scripts","toggle");
    menu.addItem("tutorials","toggle");
    menu.addItem("forums","toggle");
    menu.addItem("resources","toggle");
    menu.subMenus[1].addItem("FoldOutMenu","window.open('/script/script22.asp')");
    menu.subMenus[1].addItem("Loading Bar","window.open('/script/script17.asp')");
    menu.subMenus[1].addItem("Window Script","window.open('/script/script16.asp')");
    menu.subMenus[1].addItem("PageSlideFade","window.open('/script/script15.asp')");
    menu.subMenus[1].addItem("Circle Menu","window.open('/script/script14.asp')");
    menu.subMenus[1].addItem("Annimation Intro","window.open('/script/script9.asp')");
    menu.subMenus[1].addItem("NewsSlideFade","window.open('/script/script10.asp')");
    menu.subMenus[1].addItem("Other Scripts","window.open('/script/')");
    menu.subMenus[2].addItem("Scripting for vs5 browsers","window.open('/tutorials/tutorial5.asp')");
    menu.subMenus[2].addItem("Makeing a Dhtml Script","window.open('/tutorials/tutorial6.asp')");
    menu.subMenus[2].addItem("Filters & Transitions","window.open('/tutorials/tutorial4.asp')");
    menu.subMenus[2].addItem("Dhtml Library","window.open('/tutorials/tutorial3.asp')");
    menu.subMenus[2].addItem("Document Size","window.open('/tutorials/tutorial2.asp')");
    menu.subMenus[2].addItem("Dhtml Intro","window.open('/tutorials/tutorial1.asp')");
    menu.subMenus[3].addItem("Forum listings","window.open('/forums')");
    menu.subMenus[3].addItem("Cool Sites","window.open('/forums/forum.asp?FORUM_ID=1&CAT_ID=1&Forum_Title=Cool+sites')");
    menu.subMenus[3].addItem("CoolMenus","window.open('/forums/forum.asp?FORUM_ID=2&CAT_ID=1&Forum_Title=CoolMenus')");
    menu.subMenus[3].addItem("Cross Browser","window.open('/forums/forum.asp?FORUM_ID=3&CAT_ID=1&Forum_Title=Crossbrowser+DHTML')");
    menu.subMenus[3].addItem("Scripts","window.open('/forums/forum.asp?FORUM_ID=4&CAT_ID=1&Forum_Title=DHTML+Scripts')");
    menu.subMenus[3].addItem("General","window.open('/forums/forum.asp?FORUM_ID=6&CAT_ID=1&Forum_Title=General+DHTML+issues')");
    menu.subMenus[3].addItem("Off-Topic","window.open('/forums/forum.asp?FORUM_ID=9&CAT_ID=1&Forum_Title=Off%2Dtopic')");
    c = menu.subMenus[4].addItem("Cool Sites","toggle");
    c.startAngle = 15;
    menu.subMenus[4].addItem("Portals","window.open('/resources/default.asp?catid=7&cattitle=Portals')");
    menu.subMenus[4].addItem("Script Sites","window.open('/resources/default.asp?catid=1&cattitle=Script+sites')");
    menu.subMenus[4].addItem("Tutorials &<br>References","toggle");
    menu.subMenus[4].subMenus[0].addItem("Comercial Sites","window.open('/resources/default.asp?catid=5&cattitle=Commercial+sites')");
    menu.subMenus[4].subMenus[0].addItem("Personal Sites","window.open('/resources/default.asp?catid=6&cattitle=Personal+sites')");
    menu.subMenus[4].subMenus[0].addItem("Experimental Projects","window.open('/resources/default.asp?catid=4&cattitle=Experimental+projects')");
    menu.subMenus[4].subMenus[3].addItem("References","window.open('/resources/default.asp?catid=8&cattitle=References')");
    menu.subMenus[4].subMenus[3].addItem("Tutorials & Articles","window.open('/resources/default.asp?catid=9&cattitle=Tutorials+and+Articles')");
    //--></script>
    </body>
    </html>
      

  5.   

    呵呵。我在外层给他加个主div。然后每次展开结点的时候判断他的位置是不是负值，如果是的话。就把外面的div移动相应的像素。一切ok。哈哈
      

  6.   

    嗯~~   控制最外层的div大小来改变这个body的大小么?    想法不错,呵呵!~  看来我是把简单的问题复杂化了......