// JavaScript Document

	function overLink(num){
		document.getElementById('link'+num).className='link_over';
	}
	function outLink(num){
		document.getElementById('link'+num).className='link_normal';
	}
	function overItem(num){
		document.getElementById('item'+num).className='menu_item_over';
	}
	function outItem(num){
		document.getElementById('item'+num).className='menu_item_normal';
	}	
	function overSubItem(subnum, num){
		document.getElementById('subitem'+subnum+'_'+num).className='submenu_item_over';
		document.getElementById('arrow'+subnum+'_'+num).src='img/arrow_subitem_white.gif';
	}
	function outSubItem(subnum, num){
		document.getElementById('subitem'+subnum+'_'+num).className='submenu_item_normal';
		document.getElementById('arrow'+subnum+'_'+num).src='img/arrow_subitem.gif';
	}	
	function showSubMenu(num){
		hideAllSubMenu();
		document.getElementById('item'+num).className='menu_item_over';
		document.getElementById('submenu'+num).style.visibility='visible';		
	}
	function hideSubMenu(num){
		document.getElementById('item'+num).className='menu_item_normal';
		document.getElementById('submenu'+num).style.visibility='hidden';			
	}
	function hideAllSubMenu(){
		for (i=2; i<4; i++){
			hideSubMenu(i);
		};
	}
	function init(){
		hideAllSubMenu();
	};