function toggleLayerHousing(whichLayer) {
	var style2 = document.getElementById(whichLayer).style;
	var allStyle=document.getElementById("housingALL").style;
	if (whichLayer=="housingALL")
	{
		allStyle.display="block";
	}
	else
	{
		allStyle.display="none";
	}
	for (var i=0;i<27;++i) {
		if (whichLayer == "housing"+i) {
			style2.display = "block";
		}	else {
			var currentlayer = "housing"+i
			var style3 = document.getElementById(currentlayer).style;
			style3.display = "none";
		}
	}
}

function toggleLayerAuthorities(whichLayer) {
	var style2 = document.getElementById(whichLayer).style;
	var allStyle=document.getElementById("authoritiesALL").style;
	if (whichLayer=="authoritiesALL")
	{
		allStyle.display="block";
	}
	else
	{
		allStyle.display="none";
	}
	for (var i=0;i<27;++i) {
		if (whichLayer == "authorities"+i) {
			style2.display = "block";
		}	else {
			var currentlayer = "authorities"+i
			var style3 = document.getElementById(currentlayer).style;
			style3.display = "none";
		}
	}
}

function toggleLayerUniversities(whichLayer) {
	var style2 = document.getElementById(whichLayer).style;
	var allStyle=document.getElementById("universitiesALL").style;
	if (whichLayer=="universitiesALL")
	{
		allStyle.display="block";
	}
	else
	{
		allStyle.display="none";
	}
	for (var i=0;i<27;++i) {
		if (whichLayer == "universities"+i) {
			style2.display = "block";
		}	else {
			var currentlayer = "universities"+i
			var style3 = document.getElementById(currentlayer).style;
			style3.display = "none";
		}
	}
}

function toggleLayerCompanies(whichLayer) {
	var style2 = document.getElementById(whichLayer).style;
	var allStyle=document.getElementById("companiesALL").style;
	if (whichLayer=="companiesALL")
	{
		allStyle.display="block";
	}
	else
	{
		allStyle.display="none";
	}
	for (var i=0;i<27;++i) {
		if (whichLayer == "companies"+i) {
			style2.display = "block";
		}	else {
			var currentlayer = "companies"+i
			var style3 = document.getElementById(currentlayer).style;
			style3.display = "none";
		}
	}
}

function toggleLayerProfessionals(whichLayer) {
	var style2 = document.getElementById(whichLayer).style;
	var allStyle=document.getElementById("professionalsALL").style;
	if (whichLayer=="professionalsALL")
	{
		allStyle.display="block";
	}
	else
	{
		allStyle.display="none";
	}

	for (var i=0;i<27;++i) {
		if (whichLayer == "professionals"+i) {
			style2.display = "block";
		}	else {
			var currentlayer = "professionals"+i
			var style3 = document.getElementById(currentlayer).style;
			style3.display = "none";
		}
	}
}
function toggleLayerCharities(whichLayer) {
	var style2 = document.getElementById(whichLayer).style;
	var allStyle=document.getElementById("charitiesALL").style;
	if (whichLayer=="charitiesALL")
	{
		allStyle.display="block";
	}
	else
	{
		allStyle.display="none";
	}

	for (var i=0;i<27;++i) {
		if (whichLayer == "charities"+i) {
			style2.display = "block";
		}	else {
			var currentlayer = "charities"+i
			var style3 = document.getElementById(currentlayer).style;
			style3.display = "none";
		}
	}
}