function showNews(boxid, boxid2){
   document.getElementById(boxid).style.visibility="visible";
   document.getElementById(boxid2).style.visibility="hidden";
}

function hideNews(boxid, boxid2){
	document.getElementById(boxid).style.visibility="hidden";
	document.getElementById(boxid2).style.visibility="visible";
}
var state = 'none';

function showhide(layer_ref)
{
	if(state == 'block')
	{
		state = 'none';
	}
	else
	{
		state = 'block';
	}
	
	if (document.all) 
	{
		eval( "document.all." + layer_ref + ".style.display = state");
	}
	
	if (document.layers)
	{
		document.layers[layer_ref].display = state;
	}
	
	if (document.getElementById &&!document.all)
	{
		hza = document.getElementById(layer_ref);
		hza.style.display = state;
	}
}
function twoshowhide(layer_ref1, layer_ref2)
{
	showhide(layer_ref2);
	showhide(layer_ref1);
}