function Go(){return};

var w3c = (document.getElementById) ? 1:0;
var ie = (navigator.appName.indexOf("Microsoft") != -1) ? 1:0;
var ns = (!ie) ? 1:0;
var ie4 = (document.all) ? 1:0;
var ie5 = (navigator.userAgent.indexOf("MSIE 5.0") != -1) ? 1:0;
var ns6 = ((!ie) && (w3c)) ? 1:0;
var ns4 = ((ns) && (!ns6)) ? 1:0; //can't use inline document.layers check as it causes script parse crash on ns4.x
var mac = (navigator.platform.indexOf("Mac") != -1) ? 1:0;

var hide = (ns) ? "hide":"hidden";
var show = (ns) ? "show":"visible";

if (w3c)
{
	hide = "hidden";
	show = "visible";
}

function getObjectRef(obj) {

	var objref;

	if (w3c) {
		objref = document.getElementById(obj).style;
	} else if (ie) {
		objref = document.all(obj).style;
	} else if (ns4) {
		objref = document.layers[obj];
        //if (!objref) objref = window.document.layers[obj];
	}

	return objref;

}

function showanswer(id)
	{
	var d1 = getObjectRef("view" + id);
    var d2 = getObjectRef("answer" + id);

	d1.visibility = hide;
    d1.display = 'none';
	d2.visibility = show;
    d2.display = '';
	}
	
function hideanswer(id)
	{
	var d1 = getObjectRef("view" + id);
    var d2 = getObjectRef("answer" + id);

	d1.visibility = show;
    d1.display = '';
	d2.visibility = hide;
    d2.display = 'none';
	}