function Initialise() {
        var numModes = 3;
        for (i = 0; i < numModes; i++) {
	        if (document.getElementById("exp_SearchType" + i)!=null) {
		        document.getElementById("exp_SearchType" + i).checked = true;
		        exp_showMode(i);
	            return;
	        }
        }
    }


    function exp_showMode(whichMode) {
	    var numModes = 3;
	    for (i = 0; i < numModes; i++) {
	        if (typeof(document.getElementById("exp-wiz-" + i)=='object'))
		        document.getElementById("exp-wiz-" + i).style.display = (i == whichMode) ? "block" : "none";
	    }
    }

    function exp_showRooms(roomNo) {
        document.getElementById("exp-wiz-room2").style.display = (roomNo == 2) ? "block" : "none";
    }