javascript - Drop down menu hiding menus -


i'm building drop down menu project i'm working on, don't working entirely should. want show sub-menus when hover root-level menus, , close again after short delay when menu or sub-menu not hovered anymore. of works; sub-menus showed when root-level items hovered , hidden when stop hovering root-level item. problem sub-menus hidden when move cursor root-level item sub-menu item other first , hover that. not good, appreciated.

i created jsfiddle code shows issue more clearly.

so, here's code:

menu.htm

<div id=m_wrapper>     <ul id=menu>         <li onmouseover="show_sub_menu('0')" onmouseout="start_timer()">item 1             <div id=s0 onmouseover="show_sub_menu('0')" onmouseout="start_timer()">                 <a href=#>item 1.1</a>                 <a href=#>item 1.2</a>                 <a href=#>item 1.3</a>             </div>         </li>     </ul> </div>

menu.css

#m_wrapper {     position:relative;     display:table; } #menu {     position:relative; } #menu li {     width:100px;     position:relative;     float:left;     list-style-type:none; } #menu div {     position:absolute;     visibility:hidden;     display:inherit;     width:100%;     z-index:30 } #menu div {     position:relative;     display:block;     z-index:35; }

menu.js

var countdown = 300; var timer = null; var menu_item = null;  window.show_sub_menu = function(cath) {     if (menu_item) {         menu_item.style.visibility = 'hidden'; //make sure show 1 menu @ time     }      menu_item = window.document.getelementbyid("s" + cath);     menu_item.style.visibility = 'visible'; //show menu      if (timer) {         window.cleartimeout(timer); //reset timer, menu kept open         timer = null;     } };  window.start_timer = function() {     timer = window.settimeout(close_sub_menu, countdown); };  window.close_sub_menu = function() {     menu_item.style.visibility = 'hidden'; };

you don't have make complex.

ofcourse can same through javascript, see how easy, readable , simple through jquery.

see demo

just use following script

$('#menu li').hover(     function(){             $(this).stop().animate({height: '100px'},1000,function(){});             $(this).find('div').show(600);         }//gets called upon mousehover     ,     function(){             $(this).stop().animate({height: '20px'},1000,function(){});         } //gets called upon mouseout   ); //hover ends

and also, don't know why have written tonns of css. use these:

#menu {     list-style:none; } #menu li {     width:100px;     border:1px solid #ccc;     text-align:center;     cursor:pointer;     height:20px;     overflow:hidden;  } #menu li div {     border:1px solid #ccc; } #s0  {     height:auto; } #s0 {     display:block; }

there's plenty can through it, selected dropdown item. selection through arrow key , not. jquery makes simple you.


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