>Is there a question in there anywhere or are you just posting code for
>the fun of it?
Trying to get a menu to cotnract and expand using a javascript template. I
don't know what it is I am doing wrong, I am trying to get the menus to
either expand or contract based on their previous states, i.e if already
expanded if clicked again contract, and if contracted, expand, so far it
doesn't work for the about and services link(but works for the expand all
and contract all links), any help would be greatly appreciated:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<title>Welcome </title>
<link rel="stylesheet" type="text/css"
href="style.css" />
<script type="text/javascript" src="simpletreemenu.js">
</script>
</head>
<div id="wrapper">
<div id="header">
</div>
<table id="table">
<tr>
<td id="empty"></td>
<td rowspan="2" id="content">
</td>
</tr>
<tr>
<td id="menu">
Sidebar
<h4>Menu</h4>
<a href="javascript
:ddtreemenu.flatten('treemenu1', 'expand')">Expand
All</a| <a href="javascript
:ddtreemenu.flatten('treemenu1',
'contact')">Contract All</a>
<ul id="treemenu1" class="treeview">
<li>Home</li>
<li><a href="javascript
:ddtreemenu.flatten('treemenu1abou t',
'contact')">About</a>
<ul id="treemenu1about">
<li>History</li>
<li>Job opportunities</li>
</ul>
</li>
<li><a href="javascript
:ddtreemenu.flatten('treemenu1serv ices',
'contact')">Services</a>
<ul id="treemenu1services">
<li>Virtual assistants</li>
<li>Website design and promotion
<ul>
<li>Website design</li>
<li>Search engine optimisation</li>
<li>Website promotion </li>
<liWebsite hosting</li>
</ul>
</li>
</ul>
</li>
<li>Faq</li>
<li>Contact</li>
</ul>
</td>
</tr>
</table>
</div>
</div>
</body>
</html>
This is the javascript for simpletreemenu:
var persisteduls=new Object()
var ddtreemenu=new Object()
ddtreemenu.closefolder="/includes/closed.gif" //set image path to "closed"
folder image
ddtreemenu.openfolder="/includes/open.gif" //set image path to "open" folder
image
//////////No need to edit beyond here///////////////////////////
ddtreemenu.createTree=function(treeid, enablepersist, persistdays){
var ultags=document.getElementById(treeid).getElements ByTagName("ul")
if (typeof persisteduls[treeid]=="undefined")
persisteduls[treeid]=(enablepersist==true &&
ddtreemenu.getCookie(treeid)!="")? ddtreemenu.getCookie(treeid).split(",") :
""
for (var i=0; i<ultags.length; i++)
ddtreemenu.buildSubTree(treeid, ultags[i], i)
if (enablepersist==true){ //if enable persist feature
var durationdays=(typeof persistdays=="undefined")? 1 :
parseInt(persistdays)
ddtreemenu.dotask(window, function(){ddtreemenu.rememberstate(treeid,
durationdays)}, "unload") //save opened UL indexes on body unload
}
}
ddtreemenu.buildSubTree=function(treeid, ulelement, index){
ulelement.parentNode.className="submenu"
if (typeof persisteduls[treeid]=="object"){ //if cookie exists
(persisteduls[treeid] is an array versus "" string)
if (ddtreemenu.searcharray(persisteduls[treeid], index)){
ulelement.setAttribute("rel", "open")
ulelement.style.display="block"
ulelement.parentNode.style.backgroundImage="url("+ ddtreemenu.openfolder+")"
}
else
ulelement.setAttribute("rel", "closed")
} //end cookie persist code
else if (ulelement.getAttribute("rel")==null ||
ulelement.getAttribute("rel")==false) //if no cookie and UL has NO rel
attribute explicted added by user
ulelement.setAttribute("rel", "closed")
else if (ulelement.getAttribute("rel")=="open") //else if no cookie and this
UL has an explicit rel value of "open"
ddtreemenu.expandSubTree(treeid, ulelement) //expand this UL plus all parent
ULs (so the most inner UL is revealed!)
ulelement.parentNode.onclick=function(e){
var submenu=this.getElementsByTagName("ul")[0]
if (submenu.getAttribute("rel")=="closed"){
submenu.style.display="block"
submenu.setAttribute("rel", "open")
ulelement.parentNode.style.backgroundImage="url("+ ddtreemenu.openfolder+")"
}
else if (submenu.getAttribute("rel")=="open"){
submenu.style.display="none"
submenu.setAttribute("rel", "closed")
ulelement.parentNode.style.backgroundImage="url("+ ddtreemenu.closefolder+")*
"
}
ddtreemenu.preventpropagate(e)
}
ulelement.onclick=function(e){
ddtreemenu.preventpropagate(e)
}
}
ddtreemenu.expandSubTree=function(treeid, ulelement){ //expand a UL element
and any of its parent ULs
var rootnode=document.getElementById(treeid)
var currentnode=ulelement
currentnode.style.display="block"
currentnode.parentNode.style.backgroundImage="url( "+ddtreemenu.openfolder+"*
)
"
while (currentnode!=rootnode){
if (currentnode.tagName=="UL"){ //if parent node is a UL, expand it too
currentnode.style.display="block"
currentnode.setAttribute("rel", "open") //indicate it's open
currentnode.parentNode.style.backgroundImage="url( "+ddtreemenu.openfolder+"*
)
"
}
currentnode=currentnode.parentNode
}
}
ddtreemenu.flatten=function(treeid, action){ //expand or contract all UL
elements
var ultags=document.getElementById(treeid).getElements ByTagName("ul")
for (var i=0; i<ultags.length; i++){
ultags[i].style.display=(action=="expand")? "block" : "none"
var relvalue=(action=="expand")? "open" : "closed"
ultags[i].setAttribute("rel", relvalue)
ultags[i].parentNode.style.backgroundImage=(action=="expand ")?
"url("+ddtreemenu.openfolder+")" : "url("+ddtreemenu.closefolder+")"
}
}
ddtreemenu.rememberstate=function(treeid, durationdays){ //store index of
opened ULs relative to other ULs in Tree into cookie
var ultags=document.getElementById(treeid).getElements ByTagName("ul")
var openuls=new Array()
for (var i=0; i<ultags.length; i++){
if (ultags[i].getAttribute("rel")=="open")
openuls[openuls.length]=i //save the index of the opened UL (relative to the
entire list of ULs) as an array element
}
if (openuls.length==0) //if there are no opened ULs to save/persist
openuls[0]="none open" //set array value to string to simply indicate all
ULs should persist with state being closed
ddtreemenu.setCookie(treeid, openuls.join(","), durationdays) //populate
cookie with value treeid=1,2,3 etc (where 1,2... are the indexes of the
opened ULs)
}
////A few utility functions below//////////////////////
ddtreemenu.getCookie=function(Name){ //get cookie value
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target
name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return ""
}
ddtreemenu.setCookie=function(name, value, days){ //set cookei value
var expireDate = new Date()
//set "expstring" to either future or past date, to set or delete cookie,
respectively
var expstring=expireDate.setDate(expireDate.getDate()+ parseInt(days))
document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+";
path=/";
}
ddtreemenu.searcharray=function(thearray, value){ //searches an array for
the entered value. If found, delete value from array
var isfound=false
for (var i=0; i<thearray.length; i++){
if (thearray[i]==value){
isfound=true
thearray.shift() //delete this element from array for efficiency sake
break
}
}
return isfound
}
ddtreemenu.preventpropagate=function(e){ //prevent action from bubbling
upwards
if (typeof e!="undefined")
e.stopPropagation()
else
event.cancelBubble=true
}
ddtreemenu.dotask=function(target, functionref, tasktype){ //assign a
function to execute to an event handler (ie: onunload)
var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
if (target.addEventListener)
target.addEventListener(tasktype, functionref, false)
else if (target.attachEvent)
target.attachEvent(tasktype, functionref)
