// JavaScript Document

function navigation(page)
{
	if (page)
	{
	  if (page == 'art' || page == 'design' || page == 'management' || page == 'architecture' || page == 'map' || page == 'profile')
	  {
		  if (page != 'management' && page != 'map' && page != 'profile')
		  {
			  document.getElementById('button_next').style.backgroundImage = 'url(./images/trick_right_grey.png)';
			  document.getElementById('button_prev').style.backgroundImage = 'url(./images/trick_left_grey.png)';
		  }
		  document.getElementById('button_next_small').style.backgroundImage = 'url(./images/small_trick_right_grey.png)';
		  document.getElementById('button_prev_small').style.backgroundImage = 'url(./images/small_trick_left_grey.png)';
		  document.getElementById('address_bar').style.backgroundImage = 'url(./gui/addressbar_white.png)';
		  document.getElementById('cassette-logo').src = './images/cassette-white.png';
		  document.getElementById('cassette-logo').onmouseover = "javascript:void();";
		  document.getElementById('cassette-logo').onmouseout = "javascript:void();";
	  }
	  else if (page == 'image')
	  {
		  
		  document.getElementById('address_bar').style.backgroundImage = 'url(./gui/addressbar.png)';
	  }
	  else
	  {
		  document.getElementById('button_next').style.backgroundImage = 'url(./images/trick_right.png)';
		  document.getElementById('button_prev').style.backgroundImage = 'url(./images/trick_left.png)';
		  document.getElementById('button_next_small').style.backgroundImage = 'url(./images/small_trick_right.png)';
		  document.getElementById('button_prev_small').style.backgroundImage = 'url(./images/small_trick_left.png)';
		  document.getElementById('address_bar').style.backgroundImage = 'url(./gui/addressbar.png)';
	  }
	}
}

function menu(obj, url)
{
	obj.style.backgroundImage = 'url(./gui/' + url + ')';
}

function logo_rollover(state, bg_color, mouse_pos)
{

	if (state == true)
	{
		if (bg_color == 'black')
		{
			if (mouse_pos)
			{
				if (mouse_pos == "left")
					document.getElementById('logo').style.backgroundImage= 'url(gui/duckbuildlogo-bbg-roll-left.png)';
				else if (mouse_pos == "right")
					document.getElementById('logo').style.backgroundImage= 'url(gui/duckbuildlogo-bbg-roll-right.png)';
				else
				;
			}
		}
		else
		{
			if (mouse_pos)
			{
				if (mouse_pos == "left")
					document.getElementById('logo').style.backgroundImage= 'url(gui/duckbuildlogo-wbg-roll-left.png)';
				else if (mouse_pos == "right")
					document.getElementById('logo').style.backgroundImage= 'url(gui/duckbuildlogo-wbg-roll-right.png)';
				else
				;
			}
		}
	}
	else
	{
		if (bg_color == 'white')
			document.getElementById('logo').style.backgroundImage= 'url(gui/duckbuildlogo-wbg-plain.png)';
		else
			document.getElementById('logo').style.backgroundImage= 'url(gui/duckbuildlogo-bbg-plain.png)';
	}
}