Recent Questions Javascript Horizontal Hierarchical Family Tree Menu
Q: How do I turn off transitional effects of my java swing right click menu?
A: You should set the following java swing right click menu parameters.
var transition=-1;
var transOptions="";
var transDuration=0; var transOptions="";
var transDuration2=0;
Q: Compliments on your product, I particularly enjoy the complete set of gui and java, that allows for the quick changes.
After a couple of months of using the trial, I have now purchased it and installed the license.
My question however regards the performance of the menu. Using firebug I note that my deluxe menu .js are the performance bottlenecks, It appears as if they are not being cached and it appears that collecting them is taking longer then the other .js files. What can I do to optimize the load time of the javascript multi level menu and prevent, reloading it from the server with every page reload. The apache has set the expiry correct I believe, as I understand from the header.
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: I'm looking at evaluating your Deluxe menu software for inclusion in our current web based software solution and am particularly taken with the 'Ajax style' loading.
Could you please answer a couple of questions with respect to that.
At what point does it load those file ¦ initially when menu is drawn (so multiple small hits to app server) or when the user selects the menu? Does the link href *have* to be a .js file ¦ or can it be any valid file type that returns the correct data? I have to generate the menu options dynamically from a DB and therefore really need to include a JSP style file.
Our current menu system (made up of 4 levels deep contains over 300 links, which is why I want to minimise server hit as much as possible!
A: It loads when the user move his mouse above the menu items.
You can use any extension for these files. But the file structureshould be the same as in our example.
Q: I created a custom error page for a site, but the menu would not display.
I found that this was due to the erroneous "current directory" in the bad link test, for a non-existent directory.
which is: level2/level3/
I changed the script code from:
<script type="text/javascript"> var dmWorkPath = "DMworkfiles/";</script>
<script type="text/javascript" src="DMworkfiles/dmenu.js"></script>
to:
<script type="text/javascript"> var dmWorkPath = "DMworkfiles/";</script>
<script type="text/javascript" src="/DMworkfiles/dmenu.js"></script>
adding the "/" before "DMworkfiles/dmenu.js" source reference allowed the .js file to be found in the root directory and the menu would display.
The problem is that the little menu "expansion" arrow .gif cannot be found in the "current working directory" of level2/level3/. just little "blanks" show.
I tried changing:
var dmWorkPath = "DMworkfiles/";
to:
var dmWorkPath = "/DMworkfiles/";
but that did not enable the display of the arrows.
I also had to prefix all of the links in the menu with a "/" to indicate the root directory because of the "current directory" for the bad page.
I hope I have explained the problem sufficiently.
What am I doing wrong or missing here?
A: You can use additional parameters to make menu paths absolute:
var pathPrefix_img = "http://domain.com/images/";
var pathPrefix_link = "http://domain.com/pages/";
These parameters allow to make images and links paths absolute.
For example:
var pathPrefix_img = "http://domain.com/images/";
var pathPrefix_link = "http://domain.com/pages/";
var menuItems = [
["text", "index.html", "icon1.gif", "icon2.gif"],
];
So, link path will be look so:
http://domain.com/pages/index.html
Images paths will be look so:
http://domain.com/images/icon1.gif
http://domain.com/images/icon2.gif
Please, try to use these parameters
