// show / hide layer


function toggleLayer( whichPage, whichLayer )
{
	// alert('toggleLayer( ' + whichPage + ', ' + whichLayer);
	if(whichPage == 'hotspots'){
		var divArray = new Array('rosebud_info','hastings_info','mornington_info');
		document.getElementById('locations').style.display = "";
	}else if(whichPage == 'outcomes'){
		var divArray = new Array('council_voting','vcat_hearings');
	}else if(whichPage == 'all'){
		var divArray = new Array('disclaimer_info');
	}
	var elem;
	for(var i = 0; i < divArray.length; i++)
	{
		elem = divArray[i];
		document.getElementById(elem).style.display = "none";
		// alert('hiding ' + elem);
	}
	
	document.getElementById(whichLayer).style.display = "";
	
}