function ShowLayer(pstrLayer){
	if(document.frm.idLayer.value != ""){
		HideLayer(document.frm.idLayer.value);
	}
	document.getElementById(pstrLayer).style.display = 'block';
	document.getElementById('lnk'+pstrLayer).className = 'lnkMenuOn'
	document.frm.idLayer.value = pstrLayer;
}
function HideLayer(pstrLayer){
	document.getElementById(pstrLayer).style.display = 'none';
	document.getElementById('lnk'+pstrLayer).className = "lnkMenu";
}
function changeLayer(pintIdAnio){
	if(document.frmttl.frmActual.value != ""){
		document.getElementById(document.frmttl.frmActual.value).style.display = 'none';
		document.frmttl.frmActual.value = pintIdAnio;
	}
	document.getElementById(pintIdAnio).style.display = 'block';
}
function ShowNews(pstrNews){
	if(document.getElementById(pstrNews).style.display == "none"){
		document.getElementById(pstrNews).style.display = 'block';
	}
	else{
		document.getElementById(pstrNews).style.display = 'none';
	}
}