var currentMenu = 0;
var currentItem = 0;
var currentSubItem = 0;

function activateMenu(menuID,itemID,subitemID) {
 	if (currentMenu != 0) eval("document.all." + currentMenu + ".style.display='none'");
	if (currentItem != 0) eval("document.all." + currentItem + ".className='menu'");	
	if (currentSubItem != 0) eval("document.all." + currentSubItem + ".className='submenu'");				
	if (itemID != 0) {
	  eval("document.all." + itemID + ".className='menu_current'");	
	  currentItem = itemID;
	}
	if (menuID != 0) {
	  eval("document.all." + menuID + ".style.display='block'");
	  currentMenu = menuID;
	}
	if (subitemID != 0) {
	  eval("document.all." + subitemID + ".className='submenu_current'");
	  currentSubItem = subitemID;
	}				
}