function contract(){
var object = document.getElementById(current);
object.style.display = 'none';
}

function initDisplay(objectID,state) {
current = objectID;
var object = document.getElementById(objectID);
object.style.display = state;

}

function setDisplay(objectID) {
contract()
current = objectID;
var object = document.getElementById(objectID);
object.style.display = 'block';

}