Simple Javascript Drop-Down Menu v2.0
It is a One Level Menu with Timeout effect.
If you are looking for advanced script, see the Multi-Level Drop-Down Menu based on simple treelike unordered list.
Internet has a lot of scripts with the name "Drop Down Menu". One day I needed to make such menu for my site. I have rummaged a heap of sites and archives with scripts. And not found what I looked for. On the Net scripts shared on two variants. The first - utterly worthless scripts. The second - too complex heap up and chargeable.
And I just wrote this simple script:
Sample
This menu can be located anywhere on the page:
HTML Code
HTML code is very simple and without tables. It used unordered list for menu items and hidden layers near own parent items.
Parent items and hidden layers have unique identifiers. Also these have event handlers onmouseover and onmouseout:
<ul id="sddm">
<li><a href="#"
onmouseover="mopen('m1')"
onmouseout="mclosetime()">Home</a>
<div id="m1"
onmouseover="mcancelclosetime()"
onmouseout="mclosetime()">
<a href="#">HTML/CSS</a>
<a href="#">DHTML Menu</a>
<a href="#">JavaScript</a>
</div>
</li>
<li><a href="#"
onmouseover="mopen('m2')"
onmouseout="mclosetime()">Download</a>
<div id="m2"
onmouseover="mcancelclosetime()"
onmouseout="mclosetime()">
<a href="#">ASP Server-side</a>
<a href="#">Pulldown navigation</a>
<a href="#">AJAX Drop Submenu</a>
<a href="#">DIV Cascading </a>
</div>
</li>
<li><a href="#">Order</a></li>
<li><a href="#">Help</a></li>
<li><a href="#">Contact</a></li>
</ul>
<div style="clear:both"></div>
CSS Code
<li> tag have loat: left; declaration. sumbmenu layer have visibility: hidden; and position: absolute;. Anchor tag set to display: block;
Everything else is usual decoration:
#sddm
{ margin: 0;
padding: 0;
z-index: 30}
#sddm li
{ margin: 0;
padding: 0;
list-style: none;
float: left;
font: bold 11px arial}
#sddm li a
{ display: block;
margin: 0 1px 0 0;
padding: 4px 10px;
width: 60px;
background: #5970B2;
color: #FFF;
text-align: center;
text-decoration: none}
#sddm li a:hover
{ background: #49A3FF}
#sddm div
{ position: absolute;
visibility: hidden;
margin: 0;
padding: 0;
background: #EAEBD8;
border: 1px solid #5970B2}
#sddm div a
{ position: relative;
display: block;
margin: 0;
padding: 5px 10px;
width: auto;
white-space: nowrap;
text-align: left;
text-decoration: none;
background: #EAEBD8;
color: #2875DE;
font: 11px arial}
#sddm div a:hover
{ background: #49A3FF;
color: #FFF}
JavaScript Code
Insert this code between your <head></head> tags. Look to the code for the comments:
// 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;
That’s it! All you have to do now is add some hover styles and make it your own. Enjoy! 
If you want to use this script on your page, please place link to http://javascript-array.com at one of your pages.
Looking for Multi-Level Menu? See the Multi-Level Drop-Down Menu.
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