function enableSubMenu(id){
	ander = 1 - id;
	disableSubMenu(ander);
	document.getElementById('submenu_' + id).style.display = "";
}
function disableSubMenu(id){
	document.getElementById('submenu_' + id).style.display = "none";
}

function enlargePhoto(src){
	document.getElementById('large_image').src = src;
}

var open_id = 0;

function viewNewsItem(id, file){			
	if(open_id == id){
		document.getElementById('news_item_' + open_id).style.display = "none";		
		open_id = 0;
		toggleTvOff();
	}
	else {
		if(open_id > 0){
			document.getElementById('news_item_' + open_id).style.display = "none";		
		}
		open_id = id;
		document.getElementById('news_item_' + id).style.display = "";		
		toggleTvOn(file);
	}
}

function toggleTvOn(file){
		document.getElementById('container4').style.backgroundImage = "url("+ file +")";		
}

function toggleTvOff(){
		document.getElementById('container4').style.backgroundImage = "url(/images/background2.png)";		
}