function changeGuestName(userName , guestName)
{
	if(userName.value!="")
		return;
	var enterURL = showModalDialog("/blogweb/include/guestName.htm", "", "dialogWidth:25em; dialogHeight:10em; status:0; help:0");
	if (!enterURL)
	{
		guestName.value='';
		return;
	}
	guestName.value=enterURL;
}

function changeGuestName(guestName)
{
	if(document.cookie.indexOf('new_loginname=')>=0)
		return;
	if(document.cookie["new_loginname"]!=null)
	return;
	var enterURL = showModalDialog("/blogweb/include/guestName.htm", "", "dialogWidth:25em; dialogHeight:10em; status:0; help:0");
	if (!enterURL)
	{
		guestName.value='';
		return;
	}
	guestName.value=enterURL;
}