var menu_timer_oeffnen = new Array();
var menu_timer_schlieszen = new Array();
var menu_wait = 50;

function oeffnen ( id )
{
    if ( document.getElementById(id) )
    {
        window.clearTimeout(menu_timer_schlieszen[id]);
        menu_timer_oeffnen[id] = window.setTimeout("document.getElementById('" + id + "').style.display='table-row'", menu_wait);
    }
    
    menu = document.getElementById(id.replace("sub_nav","menue"));
    if(menu!=null) {
    	menu.style.display='block';
    }
    
    switchon(id);
}

function schlieszen ( id )
{
    if ( document.getElementById(id) )
    {
        window.clearTimeout(menu_timer_oeffnen[id]);
        menu_timer_schlieszen[id] = window.setTimeout("document.getElementById('" + id + "').style.display='none'", menu_wait);
    }
    
    menu = document.getElementById(id.replace("sub_nav","menue"));
    if(menu!=null) {
    	menu.style.display='none';
    }
	
    switchoff(id);
}

function switchon(id) {
	tab = document.getElementById(id.replace("menue","nav").replace("sub_nav","nav"));
	
	if(tab==null) {
		return;
	}
	
	tab.className='item ithover';
	
	/*switch(id) {
		case "sub_nav_produkte":
		case "menue_produkte":
			tab.style.backgroundPosition="-248px -30px";
			tab.firstChild.style.backgroundPosition="-248px -30px";
		break;
	}*/
}

function switchoff(id) {
	tab = document.getElementById(id.replace("menue","nav").replace("sub_nav","nav"));    

    if(tab==null) {
		return;
	}
	
	tab.className='item';
	
	/*switch(id) {
		case "sub_nav_produkte":
		case "menue_produkte":
			tab.style.backgroundPosition="-248px 0";
			tab.firstChild.style.backgroundPosition="-248px 0"
		break;
	}*/
}

function oeffnen_menue (id) {
	menu = document.getElementById(id);
    if(menu!=null) {
    	menu.style.display='block';
    }
    	
	switchon(id);
}

function schliessen_menue(id) {
	menu = document.getElementById(id);
    if(menu!=null) {
    	menu.style.display='none';
    }
    
    switchoff(id);
}