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Drop Down Menu Using Javascript
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k.digennaro
post Feb 16 2009, 03:12 AM
Post #1


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Hey all, I wrote that tutorial on how to create a simple drop down using HTML/CSS only, this tutorial is similar but is the javascript way to do it. I prefer this method because first off it works in more situations, and second off its much cleaner.

Live Preview, http://www.digennarodesigns.com/tutorials/JS_Drop_Down/

First we've going to create the HTML section of the JS,

Add this bit of code where you want your drop down,
CODE
<div id="menu">

<ul id="nav">
<li><a href="i#">Home</a></li>
<li><a href="#"
onmouseover="mopen('m1')"
onmouseout="mclosetime()">Music</a>
<div id="m1"
onmouseover="mcancelclosetime()"
onmouseout="mclosetime()">
<a href="#">Discography</a>
<a href="#">Lyrics</a>
<a href="#">Learn To Play</a>
</div>
</li>

<li><a href="#"
onmouseover="mopen('m2')"
onmouseout="mclosetime()">Community</a>
<div id="m2"
onmouseover="mcancelclosetime()"
onmouseout="mclosetime()">
<a href="#">Forum</a>
<a href="#">News</a>
<a href="#">Street Team</a>
<a href="#">Affiliates</a>
</div>
</li>

<li><a href="#">Contact Us</a></li>

</ul>
<div style="clear:both"></div>

</div>

This is the basic drop down, it's just a <ul> with some javascript added to make the hover's work.

Next to make this code actually work you need to create the javascript (*Note that I didn't write the Javascript for this dropdown it's just the best code I found).

Create a new document and save it as "dropdown.js" you can do this in Notepad or any html editor.
Paste this code into the document and save.
CODE
// Copyright 2006-2007 javascript-array.com

var timeout = 500;
var closetimer = 0;
var ddmenuitem = 0;

// open hidden layer
function mopen(id)
{
// cancel close timer
mcancelclosetime();

// close old layer
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

// get new layer and show it
ddmenuitem = document.getElementById(id);
ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
if(closetimer)
{
window.clearTimeout(closetimer);
closetimer = null;
}
}

// close layer when click-out
document.onclick = mclose;


This is basically it, except one key element, the link to the JS

CODE
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<title>Hello!</title>
</style>
&lt;script type="text/javascript" src="dropdown.js"></script>
</head>


Now this is a bit boring so add some CSS to it, here's an example, I'm not going to explain it though,
CODE
#menu {
background: #392115;
width: 270px;
height: 32px;
margin: 0 0;
position: relative;
}

#nav{
padding-top: 7px;
padding-left: -1px;
margin: 0 0;
z-index: 30;}

#nav li
{ margin: 0;
padding: 0;
list-style: none;
float: left;
font: bold 11px arial;}

#nav li a
{ display: block;
margin: 0 0 0 0;
padding: 0 0;
width: 90px;
height: 32px;
background: #392115;
color: #d4cebd;
text-align: center;
line-height: 29px;
text-decoration: none;}

#nav li a:hover
{ background: #5a0e09;}

#nav div
{ position: absolute;
visibility: hidden;
margin: 0;
padding: 0;
background: #d0bb8c;
border: 1px solid #392115;}

#nav div a
{ position: relative;
display: block;
margin: 0;
padding: 5px 10px;
width: auto;
white-space: nowrap;
text-align: left;
text-decoration: none;
background: #392115;
color: #330000;
font: 11px arial;}

#nav div a:hover
{ background: #766441;
color: #330000;}


Enjoy!
Kevin DiGennaro
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shnooky
post Oct 12 2011, 03:47 PM
Post #2


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Group: Members
Posts: 32
Joined: 12-October 11
From: Virginia
Member No.: 213,126
Thanks for the drop down script. I'm still very new to this language so these tutorials are life savers.
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Posts in this topic
k.digennaro   Drop Down Menu Using Javascript   Feb 16 2009, 03:12 AM
MrTouz   Boooo, i don't like JS. Why JS ? i can't ...   Feb 17 2009, 12:05 AM
k.digennaro   Works fine for me, wat browser are you using? Hove...   Feb 18 2009, 12:42 AM
Iwantha   Works fine for me, wat browser are you using? Hove...   Apr 19 2010, 01:18 PM
MrTouz   i have to refresh several time to connect to your ...   Feb 18 2009, 01:07 AM
Jenie   i have this project in school and this will come i...   Feb 26 2009, 11:19 AM
Jenniferlinn   Hey all, I wrote that tutorial on how to create a ...   Mar 10 2009, 10:36 AM
rojerbinny3132   It works for me..not bad..   Apr 3 2009, 10:50 AM
Jennysmith   Hello Thanks for sharing this useful script as i ...   Apr 3 2009, 12:58 PM
True   Broken preview link :'(   Dec 23 2009, 03:36 PM
zpcs   Hi Kevin yeah the link is brok-den :unsure:. For a...   Jan 7 2010, 06:46 AM
bobbbyboy   thanks buddy, i have needed this script for quite ...   Mar 30 2010, 10:06 PM
k.digennaro   Sorry guys I was cleaning the server and deleted t...   Aug 23 2010, 09:30 PM
Michael Wilson   Nice :D   Aug 25 2010, 12:40 AM
credasys   I'll also try this code if it's really wor...   Nov 11 2010, 05:02 PM
FrankMarten   A well designed drop down menu should always provi...   Nov 23 2010, 08:17 AM
fly9fly9   Thanks for sharing this useful script !   Nov 23 2010, 10:01 AM
heff   Thanks for sharing. I'm tring to center this ...   Nov 28 2010, 08:00 PM
John Migh   wow ! nice tutorial thanks for sharing   Feb 26 2011, 12:13 PM
shnooky   Thanks for the drop down script. I'm still ver...   Oct 12 2011, 03:47 PM
dann12   Works like charm ! Great share.. will be usefu...   Oct 29 2011, 01:20 PM

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