//[!] ________________________________________________________________________________
function documentLayerShow( layerName ) {
	var layerID;
	layerID = document.getElementById( layerName );
	layerID.style.display='block';
}

//[!] ________________________________________________________________________________
function documentLayerHide( layerName ) {
	var layerID;
	layerID = document.getElementById( layerName );
	layerID.style.display='none';
}