How do I remove the title from a menu...

I am needing to remove the title of a menu. I want to be able to enter in the words "no title" to any root menu (not menu item) and hide the title. It sounds very simple, but I am pulling my hair out. I am modifying a theme that is using PHPTemplate, here is what I have done it the template.php. For some reason it hides every menu item... not just the menu title like I was going for.

function phptemplate_menu_item($mid, $children = '', $leaf = TRUE) 
{
  
  $menu = menu_get_root_menus();  //get menu title
    	   
  foreach ($menu as $root_menu)
  {
  	
  	 if ($root_menu == 'no title')  //check to see if title is "no title"
 	 {			
	  		$root_menu = '';
	  		return $root_menu;  		
  	 }		
  }
 
}