DHTML Pull Down Menu Bar Code

This is a menubar script that will follow you when you scroll the page (you can turn that of in you want). It's similar to the other menubar only this works onmouseover instead of onclick. That means that this menu works the same way the microsoft.com menu does, only this one is cross-browser! This have some minor bugs in Netscape 5.

Works on Firefox, Internet Explorer, and Google Chrome.

Script Demo:

Demo

Dynamic HTML Code:

Insert this code into <head> tags

<style type="text/css">
#divBg{position:absolute; width:100%; top:0; left:0; visibility:hidden; height:85}
#divBgColor{position:absolute; top:0; left:0; width:103%; height:30; clip:rect(0,107%,30,0); background-color:Silver; layer-background-color:Silver}
DIV.clSub{position:absolute; top:20; left:0; width:120; visibility:hidden; font-family:arial,helvetica; font-weight:normal; font-size:12px; padding:10px; background-color:Silver; layer-background-color:Silver}
DIV.clTop{position:absolute; visibility:inherit; font-family:arial,helvetica; font-weight:bold; font-size:13px; left:100; top:20}
#divTop0{left:5%; top:5}
#divTop1{left:25%; top:5}
#divTop2{left:45%; top:5}
#divTop3{left:65%; top:5}
#divTop4{left:85%; top:5}
</style>
<script type="text/javascript" language="JavaScript">
/********************************************************************************
Copyright (C) 1999 Thomas Brattli
This script is made by and copyrighted to Thomas Brattli at www.bratta.com
Visit for more great scripts. This may be used freely as long as this msg is intact!
I will also appriciate any links you could give me.
********************************************************************************/
//Default browsercheck, added to all scripts!
function checkBrowser(){
    this.ver=navigator.appVersion
    this.dom=document.getElementById?1:0
    this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
    this.ie4=(document.all && !this.dom)?1:0;
    this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
    this.ns4=(document.layers && !this.dom)?1:0;
    this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
    return this
}
bw=new checkBrowser()
//Do you want it to move with the page if the user scroll the page?
var moveOnScroll=true

numberOfMenus=5//How many menus do you have

//Do you want to hide all the other submenus when you click a new?
var hideAll=true

//How much from top do you want the menu?
fromTop=85

/********************************************************************************
If you want to change the appearans on the text, or background or anything
do that in the style tag above, or in the table tag below.

The different event handling on the different browsers makes this a little
tricky. I had to make all divs absolute positioned to make it work in netscape.
So if you ad or remove menuitems please play with the % values of each divTop
in the stylesheet. I have not had all that much luck with % placement before
in netscape so if you encounter any errors et me know and I'll see what I can do.
********************************************************************************/


/********************************************************************************
Object constructor
********************************************************************************/
function makeMenuBar(obj,nest,vis){
    nest=(!nest) ? '':'document.'+nest+'.'
    this.css=bw.dom? document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+"document.layers." +obj):0;
    this.hideIt=b_hideIt;   this.showIt=b_showIt
    if((bw.dom || bw.ie4) && vis) this.css.visibility='hidden'
    this.evnt=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj):0;
    this.go=0
    this.height=bw.ns4?this.css.document.height:this.evnt.offsetHeight
    this.top=b_gettop
    this.obj = obj + "Object";    eval(this.obj + "=this")
}
//Get's the top position.
function b_gettop(){
    var gleft=(n) ? eval(this.css.top):eval(this.css.pixelTop);
    return gleft;
}
//The functions for showing and hiding
function b_showIt(){
    this.css.visibility="visible"
}
function b_hideIt(){
    this.css.visibility="hidden"
}
/********************************************************************************
Checking if the page is scrolled, if it is move the menu after
********************************************************************************/
function checkScrolled(){
    if(!oMenu.go)oMenu.css.top=eval(scrolled)+fromTop
    if(bw.ns4) setTimeout('checkScrolled()',30)
}
/********************************************************************************
Inits the page, makes the menu object, moves it to the right place,
show it..
********************************************************************************/
function menuBarInit(){
    oSub=new Array()
    oTop=new Array()
    for(i=0;i<numberOfMenus;i++){
        oTop[i]=new makeMenuBar('divTop'+i,'divBg')
        oSub[i]=new makeMenuBar('divSub'+i,'divBg.document.divTop'+i,1)
        oSub[i].evnt.onmouseout=evOut;
    }
    //Moving menuBar
    oMenu=new makeMenuBar('divBg')
    scrolled=bw.ns4?"window.pageYOffset":bw.ns5?"0":"document.body.scrollTop"
    oMenu.css.top=eval(scrolled)+fromTop
    oMenu.css.visibility='visible'
    if(moveOnScroll) bw.dom || bw.ie4?window.onscroll=checkScrolled:checkScrolled();

}

/********************************************************************************
Shows and hides the submenus
********************************************************************************/

function evOut(){
    if(bw.ie4 || bw.dom)this.style.visibility='hidden'
    else if(bw.ns4) this.visibility='hidden'
}
//Canceling event bubbling in ie
function ieShow(num){
    if(bw.ie4 || bw.dom){
        oSub[num].showIt()
        window.event.cancelBubble=true
    }
}
function extract(num){
    if(hideAll){
        for(i=0;i<oSub.length;i++){
            if(num!=i) oSub[i].hideIt()
        }
    }
    oSub[num].showIt();
}
onload=menuBarInit;
</script>

Insert this code into <body> tags

<div id="divBg">
    <div id="divBgColor"></div>
    <div id="divTop0" class="clTop">
            <a href="#" onmouseover="extract(0)">Choice 1</a>
            <div id="divSub0" class="clSub">
                <!-- To make the links link somewhere, just replace the #'s
                with the link location -->
                <a href="#" onmouseover="ieShow(0)" onmouseout="ieShow(0)">Sub choice 1</a>  <br>
                <a href="#" onmouseover="ieShow(0)" onmouseout="ieShow(0)">Sub choice 2</a><br>
                <a href="#" onmouseover="ieShow(0)" onmouseout="ieShow(0)">Sub choice 3</a><br><br>
            </div>
    </div>
    <div id="divTop1" class="clTop">
            <a href="#" onmouseover="extract(1)">Choice 2</a>
            <div id="divSub1" class="clSub">
                <!-- To make the links link somewhere, just replace the #'s
                with the link location -->
                <a href="#" onmouseover="ieShow(1)" onmouseout="ieShow(1)">Sub choice 1</a>  <br>
                <a href="#" onmouseover="ieShow(1)" onmouseout="ieShow(1)">Sub choice 2</a><br><br>
            </div>
    </div>
    <div id="divTop2" class="clTop">
            <a href="#" onmouseover="extract(2)">Choice 3</a>
            <div id="divSub2" class="clSub">
                <!-- To make the links link somewhere, just replace the #'s
                with the link location -->
                <a href="#" onmouseover="ieShow(2)" onmouseout="ieShow(2)">Sub choice 1</a>  <br>
                <a href="#" onmouseover="ieShow(2)" onmouseout="ieShow(2)">Sub choice 2</a><br><br>
            </div>
    </div>
    <div id="divTop3" class="clTop">
            <a href="#" onmouseover="extract(3)">Choice 4</a>
            <div id="divSub3" class="clSub">
                <!-- To make the links link somewhere, just replace the #'s
                with the link location -->
                <a href="#" onmouseover="ieShow(3)" onmouseout="ieShow(3)">Sub choice 1</a>  <br>
                <a href="#" onmouseover="ieShow(3)" onmouseout="ieShow(3)">Sub choice 2</a><br>
                <a href="#" onmouseover="ieShow(3)" onmouseout="ieShow(3)">Sub choice 3</a><br><br>
            </div>
    </div>
    <div id="divTop4" class="clTop">
            <a href="#" onmouseover="extract(4)">Choice 5</a>
            <div id="divSub4" class="clSub">
                <!-- To make the links link somewhere, just replace the #'s
                with the link location -->
                <a href="#" onmouseover="ieShow(4)" onmouseout="ieShow(4)">Sub choice 1</a>  <br>
                <a href="#" onmouseover="ieShow(4)" onmouseout="ieShow(4)">Sub choice 2</a><br><br>
            </div>
    </div>
</div>

Instruction:

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