function mostrar(modulo,posicionx,posiciony){
    document.getElementById(modulo).style.display='block';
    document.getElementById(modulo).style.visibility='visible';
    document.getElementById(modulo).style.top=posicionx+'px';
    document.getElementById(modulo).style.left=posiciony+'px';
}


function ocultar(modulo){
    document.getElementById(modulo).style.display='none';
    document.getElementById(modulo).style.visibility='hidden';
}

function ShowHideLayer(sLayerName)
{
	oLayer = document.getElementById(sLayerName);
	
	if (!oLayer) {
		return;
	}
	
	if (oLayer.style.visibility == "hidden") {
		ShowLayer(sLayerName);
        return;
	} else {
		HideLayer(sLayerName);
        return;
	}
	
	return;
}

function HideLayer(sLayerName)
{
	oLayer = document.getElementById(sLayerName);
	
	//if (!oLayer) {
	//	return;
	//}
    
	oLayer.style.visibility = "hidden";
	oLayer.style.display = "none";

}

function ShowLayer(sLayerName)
{
	oLayer = document.getElementById(sLayerName);
	
	//if (!oLayer) {
	//	return;
	//}
    
	oLayer.style.visibility = "visible";
	oLayer.style.display = "block";

}