var new_browser
if(document.getElementById || document.all){new_browser = true}
else {new_browser = false}

var show_it = "visible"
var hide_it = "hidden"

function toggleLayer(id) {
	if(new_browser){
		if(document.all) {var obj = document.all(id).style}
		if(document.getElementById){var obj = document.getElementById(id).style}
		if(document.layers) {var obj = document.layers[id]; show_it = "show"; hide_it = "hide"}
		if(navigator.userAgent.indexOf("Opera")==0) {show_it = "VISIBLE"; hide_it = "HIDDEN"}
		if(obj.visibility == hide_it){obj.visibility = show_it}
		else {obj.visibility = hide_it}	
	}
}

function showLayer(id) {
	if(new_browser){
		if(document.all) {var obj = document.all(id).style}
		if(document.getElementById){var obj = document.getElementById(id).style}
		if(document.layers) {var obj = document.layers[id]; show_it = "show"; hide_it = "hide"}
		if(navigator.userAgent.indexOf("Opera")==0) {show_it = "VISIBLE"; hide_it = "HIDDEN"}
		obj.visibility = show_it

	}
}

function hideLayer(id) {
	if(new_browser){
		if(document.all) {var obj = document.all(id).style}
		if(document.getElementById){var obj = document.getElementById(id).style}
		if(document.layers) {var obj = document.layers[id]; show_it = "show"; hide_it = "hide"}
		if(navigator.userAgent.indexOf("Opera")==0) {show_it = "VISIBLE"; hide_it = "HIDDEN"}
		obj.visibility = hide_it
	}
}



function hideAllBut1(layer){
if(document.getElementById("philosophy")){hideLayer("philosophy")}; 
if(document.getElementById("private")){hideLayer("private")}; 
if(document.getElementById("corporateconsult")){hideLayer("corporateconsult")}; 
if(document.getElementById("ourteam")){hideLayer("ourteam")}; 
	if (layer != "none" && document.getElementById(layer)){showLayer(layer)}
}