Theme development

I'm trying to customize my drupal site, and in the primary and secondary links it displays as:

Link1 | Link2 | Link3 | ....

I there a way I can remove the | in between each link?

...i've a problem with ECHO! O_O

look this snipped:

$categories = taxonomy_get_tree(3);
$curr = $categories[0].name;
echo $curr;

I should see the name of the first category, rit? Well...NO! i get the string "Objectname".
The dot is not interpreted as object attribute access operator, but as string concatenator

$categories[0]->name works but....im just wondering why the dot doesn't...

Hello,

Is there anything like "Drupal theme engine development HOWTO" out there? I'm thinking about adding XSLT template support for Drupal, but I'm unable to find anything/anyone what could help.

Regards,

I'd like to print a list of all terms of a vocabulary, since i need to show a links collection to all categories. I used this snipped in my php page:

			
			$termini = taxonomy_get_tree(3);
			var_dump(($termini[0]));
			$limite = count($termini);
			for($i=0; $i < $limite; $i++) print $termini[$i]["name"];

var_dump() shows me the entire struct:

Hiya, I tried to code this in phptemplate, I wrote this is page.tpl.php:

//if user is logged in, show left, if user is also admin, show right.
global $user;
if ($user->uid) {
if ($user->uid == 1) {
print $sidebar_left;
} else {
print $sidebar_right;
}
} else {
return;
}

If the admin is logged in, it seems to work fine and I get the left column block, but when I went to my site as anonymous the page just stopped where I pasted this code.
Like in the middle of the HTML, there was just blank.

I use the following code in my page.tpl.php file to redirect user to specific templated based on node types: