// error writer
function writeError()
{
    var url = unescape(location.href);
    if (url.indexOf("?") != -1 && url.indexOf("&") == -1 && url.indexOf("=") == -1)
    {
        var tail = url.substring(url.indexOf("?") + 1); 
        if (tail != null && tail != "" && tail.length > 0)
        {
            var msg = trim(tail.replace(/\+/g, " "));
            if (msg.length > 0) 
            {
                var error = "<span class=\"st-error-span\">" + msg + "</span><hr />";
                document.write(error); 
            }
        }   
    }
}

// radio button utility
var curRadio = null;
var curIsChecked = true;
function checkRadio(name, i)
{
	var radioSet = eval("document.forms['swfit_form']." + name);
	if (curRadio == null)
	{
		curRadio = radioSet[i];
		curIsChecked = curRadio.checked;
		checkRadio(name, i);
	}
	if (curRadio.value == radioSet[i].value)
	{
		radioSet[i].checked = !curIsChecked;
		curIsChecked = !curIsChecked;
		curRadio = radioSet[i];
		return;
	}
	curRadio = radioSet[i];
	curIsChecked = true;
}