Recent Questions
Q: I made a html CD presentation based on cascading drop down menu but it works good only onIE and Google Chrome web browsers.
It doesn't work good on Mozilla Firefox browser. It shows menu properly but there is a problem with normal navigation.
The problem is with paths. I put the main js file in "menu" folder and I also have few folders with many html files in them.
For path I use the following "file:/(direct path to specific html file)". It works fine with IE and Google, but Mozilla/Firefox doesn't show the menu.
I tried also to use prefix "file:/" but it also doesn't show the cascading drop down menu on Mozilla/Firefox.
Is there any way to solve this problem?
Thank you for your answer.
A: It is not correct to add "file:/" in the link field.
You should write:
menu/image.gif
or
../menu/image.gif
You can try also to write links in the following way:
file://html/other/1.html
But I don't think that this will help you.
This is a feature of Firefox browser, Opera and Safari. These browsers cannot determine the root folder ofthe website (D:\ in the examples below) on a local machine (as IE and Google Chrome).
IE: D:\html\other\page.html (works)
Opera: file://localhost/html/other/page.html (link doesn't work)
Google Chrome: file:///D:/html/other/page.html (works)
Safari: file:///html/other/page.html (link doesn't work)
Firefox: file:///html/other/page.html (link doesn't work)
You use relative paths (and your folders have several embedded folders), so your links won'twork correctly in Firefox, Opera and Safari. The reason is not in the menu. Standard linkswon't work too.
So I think that the unique solution in your case is to move ALL link files (1.html,2.html, a.html ...) into the same folder with your index.html file.Q: Is there any way to call a javascript function on mouseover from a menu item for a sub navigation bar?
A: You can use your own javascript functions in the menu items.
You should paste "javascript:some_function()" into item's link field, for example:
var menuItems = [
["text", "javascript:your_function(...)", ...]
];
var menuItems = [
["item text", "javascript:alert('Hello World')", , , , ,]
];
Unfortunately, you can't assign onmouseover/onClick event to each item. However, you can achieve this by using standard html objects within items, for example:
var menuitems = [
["item text
", "index.html"]
];
Q: I am having some difficulty dynamically adding items to a tree javascript and menu.
I have a menu with one "root" item. I see the use of the "+" symbol within the item name. I do not see any documentation regarding this symbol, only "|". Can you explain?
If I have one menu with this one "root" node, how would I add an subitem to this root node?
Here is my code so far, but the inserted items appear to be at the same level as the root node.
var rootItem = dtreet_ext_getItemIDByIndex ( 0,0 );
var menuItem = new Array(10);
for ( var i = 0; i < producers.length; i++ )
{
var producer = producers[ i ];
menuItem[0] = producer.name;
dtreet_ext_insertItem ( 0, 0, i + 1, menuItem );
A: See dtreet_ext_insertItem () function has the following parameters:
function dtreet_ext_insertItem (menuInd, parentItemID, itemInd, itemParams)
Creates a new item and inserts it into a specified position.
menuInd - index of a javascript and menu on a page, >= 0.
parentItemID - ID property of an item.<, >= 0.
itemInd - index of a new item within the javascript and menu, >= 0.
itemParams - item parameters.
Notice that parentItemID is the Id property of the parent item (notindex). If you want to add top items you should set parentItemID=0.
itemInd - you should use this parameter if you want to add item in thespecific place, for example set itemInd=5 if you want to add itembefore the existing item with itemInd=5.
If you set itemInd=null the new item will be added at the end of this submenu and its index will be added automatically.
Q: How can I center my navigation java script menu bar within my HTML page? I have tried putting the script into a table that is centered. I have also changed the var menuWidth to 800px. The navigation bar is still right-justified instead of centered in both IE and Firefox/Mozilla.
A: Now you use absolute position for the java script menu bar:
var absolutePos=1;
var posX="0px";
var posY="0px";
You should set:
var absolutePos=0;