Interpretation m$ Source code: JavaScript + CSS Implementation of dynamic menu display

<!--interpretation m$ source code: JavaScript + CSS Implementation dynamic Menu display-->
<!--default.htm-->
<!--little Brother's JavaScript level is really bad enough, so the following annotations are personal understanding, there are omissions and improper place also please you to correct the-->
<!--The following source code originates from the Discover/easy2use directory of the m$ Windows Professional installation CD, where you see the final annotation of the document-->
<!--for definitions of units and collections, see the annotations that follow the documentation-->
<meta http-equiv= "Content-type" content= "text/html; charset=gb2312 ">
<TITLE> easier to use </TITLE><!--Note 1-->
<script language= "JavaScript" >
var Whichim;
var varcolor = "Ddeeff";
Document.onmouseover = MouseOver;
Document.onmouseout = mouseout;
Document.onmousedown = MouseDown;
Document.onmouseup = mouseUp;
function MouseOver () {
var vsrc = window.event.srcElement;
if (Vsrc.classname = = "Child2" | | | vsrc.classname = "CHILD3" | | vsrc.classname = "parent") * * Determine whether the object is "unit" * *
Fcolor = VSrc.style.backgroundColor;
VSrc.style.backgroundColor = Varcolor;
/* Note 2*/
}
}
function Mouseout () {
var vsrc = window.event.srcElement;
if (Vsrc.classname = = "Child2" | | | vsrc.classname = "CHILD3" | | vsrc.classname = = "Parent") {
VSrc.style.backgroundColor = Fcolor;
/* Note 2*/
}
}
function MouseDown () {
var vsrc = window.event.srcElement;
Divcoll=document.all.tags ("DIV");