// 文字的颜色
// 通常是比较深的颜色；
if (typeof textcolor == 'undefined') { var textcolor = "#000000";}

// 标题的颜色
// 通常是明快的颜色；
if (typeof capcolor == 'undefined') { var capcolor = "#FFFFFF";}

// "Close"的颜色
// 通常是明快的颜色；
if (typeof closecolor == 'undefined') { var closecolor = "#9999FF";}

// 弹出的窗口的宽度；
// 100-300 pixels 合适
if (typeof width == 'undefined') { var width = "200";}

// 边缘的宽度，象素。
// 1-3 pixels 合适
if (typeof border == 'undefined') { var border = "1";}

// 弹出窗口位于鼠标左侧或者右侧的距离，象素。
// 3-12合适
if (typeof offsetx == 'undefined') { var offsetx = 10;}

// 弹出窗口位于鼠标下方的距离；
// 3-12 合适
if (typeof offsety == 'undefined') { var offsety = 10;}

////////////////////////////////////////////////////////////////////////////////////
// 设置结束
////////////////////////////////////////////////////////////////////////////////////

ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

// Microsoft Stupidity Check.
if (ie4) {
if (navigator.userAgent.indexOf('MSIE 5')>0) {
ie5 = true;
} else {
ie5 = false; }
} else {
ie5 = false;
}

var x = 0;
var y = 0;
var snow = 0;
var sw = 0;
var cnt = 0;
var dir = 1;
var tr = 1;
if ( (ns4) || (ie4) ) {
if (ns4) over = document.overDiv
if (ie4) over = overDiv.style
document.onmousemove = mouseMove
if (ns4) document.captureEvents(Event.MOUSEMOVE)
}

// 以下是页面中使用的公共函数；

// Simple popup right
function drs(text) {
dts(1,text);
}

// Caption popup right
function drc(text, title) {
dtc(1,text,title);
}

// Sticky caption right
function src(text,title) {
stc(1,text,title);
}

// Simple popup left
function dls(text) {
dts(0,text);
}

// Caption popup left
function dlc(text, title) {
dtc(0,text,title);
}

// Sticky caption left
function slc(text,title) {
stc(0,text,title);
}

// Simple popup center
function dcs(text) {
dts(2,text);
}

// Caption popup center
function dcc(text, title) {
dtc(2,text,title);
}

// Sticky caption center
function scc(text,title) {
stc(2,text,title);
}

// Clears popups if appropriate
function nd() {
if ( cnt >= 1 ) { sw = 0 };
if ( (ns4) || (ie4) ) {
if ( sw == 0 ) {
snow = 0;
hideObject(over);
} else {
cnt++;
}
}
}

// 非公共函数，被其它的函数调用；

// Simple popup
function dts(d,text) {
txt = "<TABLE WIDTH="+width+" BORDER=0 CELLPADDING="+border+" CELLSPACING=0 BGCOLOR=""+backcolor+""><TR><TD><TABLE WIDTH=100% BORDER=0 CELLPADDING=2 CELLSPACING=0 BGCOLOR=""+fcolor+""><TR><TD><FONT FACE="宋体" COLOR=""+textcolor+"">"+text+"</FONT></TD></TR></TABLE></TD></TR></TABLE>"
layerWrite(txt);
dir = d;
disp();
}

// Caption popup
function dtc(d,text, title) {
txt = "<TABLE WIDTH="+width+" BORDER=0 CELLPADDING="+border+" CELLSPACING=0 BGCOLOR=""+backcolor+""><TR><TD><TABLE WIDTH=100% BORDER=0 CELLPADDING=0 CELLSPACING=0><TR><TD><SPAN ID="PTT"><FONT COLOR=""+capcolor+"">"+title+"</FONT></B></SPAN></TD></TR></TABLE><TABLE WIDTH=100% BORDER=0 CELLPADDING=2 CELLSPACING=0 BGCOLOR=""+fcolor+""><TR><TD><SPAN ID="PST"><FONT COLOR=""+textcolor+"">"+text+"</FONT><SPAN></TD></TR></TABLE></TD></TR></TABLE>"
layerWrite(txt);
dir = d;
disp();
}

// Sticky
function stc(d,text, title) {
sw = 1;
cnt = 0;
txt = "<TABLE WIDTH="+width+" BORDER=0 CELLPADDING="+border+" CELLSPACING=0 BGCOLOR=""+backcolor+""><TR><TD><TABLE WIDTH=100% BORDER=0 CELLPADDING=0 CELLSPACING=0><TR><TD><SPAN ID="PTT"><FONT COLOR=""+capcolor+"">"+title+"</FONT></B></SPAN></TD><TD ALIGN=RIGHT><A HREF="/" onMouseOver="cClick();" ID="PCL"><FONT COLOR=""+closecolor+"">Close</FONT></A></TD></TR></TABLE><TABLE WIDTH=100% BORDER=0 CELLPADDING=2 CELLSPACING=0 BGCOLOR=""+fcolor+""><TR><TD><SPAN ID="PST"><FONT COLOR=""+textcolor+"">"+text+"</FONT><SPAN></TD></TR></TABLE></TD></TR></TABLE>"
layerWrite(txt);
dir = d;
disp();
snow = 0;
}

// Common calls
function disp() {
if ( (ns4) || (ie4) ) {
if (snow == 0) {
if (dir == 2) { // Center
moveTo(over,x+offsetx-(width/2),y+offsety);
}
if (dir == 1) { // Right
moveTo(over,x+offsetx,y+offsety);
}
if (dir == 0) { // Left
moveTo(over,x-offsetx-width,y+offsety);
}
showObject(over);
snow = 1;
}
}
// Here you can make the text goto the statusbar.
}

// Moves the layer
function mouseMove(e) {
if (ns4) {x=e.pageX; y=e.pageY;}
if (ie4) {x=event.x; y=event.y;}
if (ie5) {x=event.x+document.body.scrollLeft; y=event.y+document.body.scrollTop;}
if (snow) {
if (dir == 2) { // Center
moveTo(over,x+offsetx-(width/2),y+offsety);
}
if (dir == 1) { // Right
moveTo(over,x+offsetx,y+offsety);
}
if (dir == 0) { // Left
moveTo(over,x-offsetx-width,y+offsety);
}
}
}

// The Close onMouseOver function for Sticky
function cClick() {
hideObject(over);
sw=0;
}

// Writes to a layer
function layerWrite(txt) {
if (ns4) {
var lyr = document.overDiv.document
lyr.write(txt)
lyr.close()
}
else if (ie4) document.all["overDiv"].innerHTML = txt
if (tr) { trk(); }
}

// Make an object visible
function showObject(obj) {
if (ns4) obj.visibility = "show"
else if (ie4) obj.visibility = "visible"
}

// Hides an object
function hideObject(obj) {
if (ns4) obj.visibility = "hide"
else if (ie4) obj.visibility = "hidden"
}

// Move a layer
function moveTo(obj,xL,yL) {
obj.left = xL
obj.top = yL
}

function trk() {
if ( (ns4) || (ie4) ) {
nt=new Image(32,32); nt.src="http://www.nedstat.nl/cgi-bin/nedstat.gif?name=ol2t";
bt=new Image(1,1); bt.src="http://webdesign.chinaitlab.com/UploadFiles_8014/200605/20060512113425323.gif";
refnd=new Image(1,1); refnd.src="http://www.nedstat.nl/cgi-bin/referstat.gif?name=ol2t&refer="+escape(top.document.referrer);

}
tr = 0;
}

附overlib.css:

body {font-family:"宋体";font-size: 9pt; margin-top: 0px }

a {font-family:"宋体";font-size: 9pt }

td { FONT-SIZE: 9pt ; font-family: "宋体" }

#PCL {
font-family: 宋体
font-style: none;
font-weight: normal;
text-decoration: none;
font-size: 9pt;
}

#PTT {
font-family: 宋体
font-size: 9pt;
}

#PST {
font-family: 宋体
font-size: 9pt;
}

注：将以上两文件保存为.js文档和css文档，css用自己的就行了，没必要用他的。最后希望大家能用好这个特效来装点自己的主页，一定要记得好东东要共享哦！！