// JavaScript Document
function makeVisible(id) {
	var i;
	for (i = 1; i<= 11; ++i) {
		var idName = "i" + i;
		var invId = document.getElementById(idName);
		invId.className = "invisible";
	}
   	var el = document.getElementById(id);
  	 el.className = "visible";
}

function addBorder(id) {
	var el = document.getElementById(id);
	el.className = "whiteBorder";
}

function removeBorder(id) {
	var el = document.getElementById(id);
	el.className = "bkgdBorder";
}