代码简介：不知道能给它起个什么名字，就叫做“爆炸式菜单”吧，因为它的效果很像是爆炸开了，鼠标点击后会以一个五角星为基准单元依次展开，可以有多次，像链式表一样。
代码内容：
<html>
<head>
<title>红色小方块单击爆炸式展开的菜单代码_网页代码站(www.webdm.cn)</title>
</head>
<body>
<style type="text/css">
.dot { position: absolute; 6; height: 6; visibility: hidden; background-color: red; font-size:
1px; cursor: pointer; cursor: hand; z-index: 100 }
.dotoff { position: absolute; 6; height: 6; visibility: hidden; background-color: gray; font-size:
1px; cursor:default; z-index: 100}
.dotempty { position: absolute; 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()
</script>
<script language="javascript1.2" type="text/javascript">
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function getObjectRef(name) {
if(document.getElementById) return document.getElementById(name);
else if(document.all) return document.all[name];
else return null;
}
function show(name) {
var el = getObjectRef(name);
if(el) el.style.visibility = "visible";
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function hide(name) {
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if(el) el.style.visibility = "hidden";
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function getWidth(name) {
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if(el) { el.style.top = parseInt(y); el.style.left = parseInt(x); }
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if(el) { el.style.top = parseInt(el.style.top) + parseInt(y); el.style.left = parseInt(el.style.left) +
parseInt(x); }
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// Creates the menu objects
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var menuCount = 0;
function menuObject(name,x,y,caption, r, parent) {
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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>');
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(this.ref,x,y); }
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sub.moveMe(0,0);
this.subMenus[this.subMenus.length] = sub;
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}
this.expand = function() {
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[i].subMenus.length)) && (this.parent.subMenus[i].moving==false);
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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;");
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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";
}
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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%";
}
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}
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;");
}
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%";
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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) {
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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);
}
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);
}
}
if (menuCount==0 && document.all) document.all[this.ref].style.filter = "alpha (opacity=100)";
menuCount++;
return this;
}
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)) ); }
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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;
}
if(document.all) pageWidth = document.body.offsetWidth-20;
else pageWidth = innerWidth;
if(document.all) pageHeight = document.body.offsetHeight-4;
else pageHeight = innerHeight;
var menu = new menuObject("menu",pageWidth/2,pageHeight/2,"DhtmlCentral Site Map",pageHeight/2);
menu.startAngle = -90;
menu.show();
menu.showCaption();
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>
</span>
<br>
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代码来自：http://www.webdm.cn/webcode/1057e85d-a7b0-4a69-961e-353419e56e4f.html