function showcampus(campus) {
	
	document.getElementById(campus).style.display="block";


	}
	
function hideAll() {

	document.getElementById('grenfell').style.display="none";
	document.getElementById('stjohns').style.display="none";
	document.getElementById('marine').style.display="none";
	document.getElementById('harlow').style.display="none";
	document.getElementById('happyValley').style.display="none";
	document.getElementById('labradorCity').style.display="none";



	}