Recent Questions
Q: Hello, I am interesting in purchasing your product, but first I need to know if it is possible to call a JavaScript function from the menu. I have read the FAQ and noted where it lists that you can perform an alert call, and that worked on my end as well, but when I attempted to call a function I created I could not get it to respond. Is it possible to call a function from your menu? Could I get an example?
A: You can write your own functions within menuItems, for example:
["|Real-Time Data Query","javascript:window.open('http://www.domain.org/', '_blank','height=758,width=1024,status=yes,toolbar=no, menubar=no,location=no');",,,'Query real time water quality data' ,'' , '', '', ,],
Q: What can I do to optimize the load time for dhtml rollover
and prevent reloading it from the server with every page reload.
A: You can try to use AJAX technology.
AJAX-like technology: data for submenus can be loaded "on-the-fly" from the server.
New parameter:
var tajax = 0/1; - disables/enables AJAX-like support
Current syntax for item parameters ( var tmenuItems):
[text, link, iconNormal, iconOver, iconExpanded, tip, target, itemStyleInd, itemXPStyleInd, jsFileName]
Where jsFileName - .js filename on the server with submenu items ( var tmenuItems).
Q: The problem that I'm having is when ever the menu has an external link clicked to load in the main frame, the main menu (blue one with icons) dropped down & the frame below is moved to the bottom ofthe menu, or in other terms the menu frame stretches to the size of the menu & moves the main frame down.
A: The menu will work correctly in the cross-frame mode if you load pages into the sub frame from the same domain.
If you load pages from another domain submenus won't be shown in the subframe - they will be shown in the frame with the top-menu.
It's caused by a security policy of browsers - a script can't modify a content of pages from another domain.
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.