<!--
// LayerLib.js 
// Val Shteinberg
function hideLayer( objectId ){
	if(document.getElementById && document.getElementById(objectId)){
		document.getElementById(objectId).style.visibility = "hidden";
		document.getElementById(objectId).style.display = "none";
	}else if (document.all && document.all(objectId)){
		document.all(objectId).style.visibility = "hidden" ;
		document.all(objectId).style.display = "none" ;			 
	}else if (document.layers && document.layers[objectId]){
		document.layers[objectId].visibility = "hide" ;
		document.layers[objectId].display = "none" ;
	}else{
		return false;
	}
}
function showLayer( objectId ){
	if(document.getElementById && document.getElementById(objectId)){
		document.getElementById(objectId).style.visibility = "visible";
		document.getElementById(objectId).style.display = "";
	}else if (document.all && document.all(objectId)){
		document.all(objectId).style.visibility = "visible" ;
		document.all(objectId).style.display = "" ;			 
	}else if (document.layers && document.layers[objectId]){
		document.layers[objectId].visibility = "show" ;
		document.layers[objectId].display = "" ;
	}else{
		return false;
	}
}
function hideAll(){
	hideLayer('LayerEvents');
	rollOff('naveve');
	hideLayer('LayerDevelopment');
	rollOff('navrec');
	hideLayer('LayerInfo');
	rollOff('navkid');
	hideLayer('LayerTradition');
	rollOff('navsta');
	hideLayer('LayerLinks');
	rollOff('navsum');
	
}
// --->