var iCurrentMenu  = 0;
var menu_img_on_over = new Array();
var menu_img_on_out  = new Array();
var boolIsReady = false;

// preload images
menu_img_on_over[1]     = new Image();
menu_img_on_over[1].src = "/img/nav01active.gif";
menu_img_on_out[1]      = new Image();
menu_img_on_out[1].src  = "/img/nav01.gif";         

menu_img_on_over[2]     = new Image();
menu_img_on_over[2].src = "/img/nav02active.gif";
menu_img_on_out[2]      = new Image();
menu_img_on_out[2].src  = "/img/nav02.gif";           

menu_img_on_over[3]     = new Image();
menu_img_on_over[3].src = "/img/nav03active.gif";
menu_img_on_out[3]      = new Image();
menu_img_on_out[3].src  = "/img/nav03.gif";

menu_img_on_over[4]     = new Image();
menu_img_on_over[4].src = "/img/nav04active.gif";
menu_img_on_out[4]      = new Image();
menu_img_on_out[4].src  = "/img/nav04.gif";

menu_img_on_over[5]     = new Image();
menu_img_on_over[5].src = "/img/nav05active.gif";
menu_img_on_out[5]      = new Image();
menu_img_on_out[5].src  = "/img/nav05.gif";

menu_img_on_over[6]     = new Image();
menu_img_on_over[6].src = "/img/nav06active.gif";
menu_img_on_out[6]      = new Image();
menu_img_on_out[6].src  = "/img/nav06.gif";

function hide_all(e)
{

	e = e || window.event || document.event;
	s = e.target || e.srcElement;

	while(1)
	{
		if(s.parentNode.id=='menu') return;
		if(s.parentNode.id=='globalContent') break;
		s=s.parentNode;
	}


   var layers = new Array('layer1', 'layer2', 'layer3', 'layer4', 'layer5');

   for( i=0; i < layers.length ; i++ )
     document.getElementById( layers[i] ).style.display = "none";

   /* return default stat of button main menu */
   if(iCurrentMenu > 0)
   {
     document.getElementById('m'+iCurrentMenu).bgColor = '';
     document.getElementById('menuimg' + iCurrentMenu).src = menu_img_on_out[iCurrentMenu].src;
   }
}


/* images have been pleloaded */
boolIsReady = true;
document.onmouseover = hide_all;
 
  
function Show(i, space_color)
{
  if(!boolIsReady) return;

  if(iCurrentMenu)
    document.getElementById('layer' + iCurrentMenu).style.display = "none";
  
  if(iCurrentMenu > 0)
  {
    document.getElementById('m'+iCurrentMenu).bgColor = '';
    document.getElementById('menuimg' + iCurrentMenu).src = menu_img_on_out[iCurrentMenu].src;
  }

  document.getElementById('m'+i).bgColor = space_color;
  document.getElementById('layer' + i).style.display = "";

  document.getElementById('menuimg'+i).src = menu_img_on_over[i].src;
    
  iCurrentMenu = i;
}