<!--
	
function EmailCheck (emailStr)
{
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


	var matchArray=emailStr.match(emailPat)
	if (matchArray==null)
	{
		alert("Email address seems incorrect (check @ and .'s)")
		return false
	}

	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null)
	{
		alert("The username doesn't seem to be valid.")
		return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null)
	{
		for (var i=1;i<=4;i++)
		{
			if (IPArray[i]>255)
			{
				alert("Destination IP address is invalid!")
				return false
			}
		}
    return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null)
	{
		alert("The domain name doesn't seem to be valid.")
		return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3)
	{
		alert("The address must end in a three-letter domain, or two letter country.")
		return false
	}

	if (len<2)
	{
		var errStr="This address is missing a hostname!"
		alert(errStr)
		return false
	}

return true;
}

function PopUp (width, height, page, scroll)
{
	var sProperties = "";
	sProperties += "scrollbars=" + scroll + ",";
	sProperties += "width=" + width + ",";
	sProperties += "height=" + height + ",";
	sProperties += "status=0,";
	sProperties += "menubar=0,";
	sProperties += "location=0,";
	sProperties += "toolbar=0,";
	sProperties += "screenX=0,";
	sProperties += "screenY=0,";
	sProperties += "left=0,";
	sProperties += "top=0";
        
	oFormWindow = window.open (page,"formWindow",sProperties);
	oFormWindow.focus ();
	return false;	
}


function SubmitForm (frm)
{
	//alert("form submitted");
	//validate email
	if (EmailCheck(frm.signupemail.value))
	{
		PopUp (300, 200, "http://www.walkabout.com/customerService/processing.htm", 0);
		frm.fromjs.value = "yes";
		return true;
	}
	else
	{
		return false;
	}
}
	
function Subscribe (doit, signUpForm)
{
	var frm = null;
	if( signUpForm == null )
		var frm = document.frmSignUp;
	else
		var frm = signUpForm
	
	frm.unsub.value = (doit) ? "" : "yes";
	
	if (SubmitForm (frm))
	{
		//onsubmit handler will not fire in IE5.0; check other browers
		frm.submit();
	}
	return false;
}
	
	//-->