// JavaScript Document

function validEmail(str) {
	var showAlerts = false;
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	
	if (str.indexOf(at)==-1){
	   if(showAlerts) alert("Please use a valid email address.");
	   return false;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   if(showAlerts) alert("Please use a valid email address.");
	   return false;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		if(showAlerts) alert("Please use a valid email address.");
	   return false;
	}

	 if (str.indexOf(at,(lat+1))!=-1){
		if(showAlerts) alert("Please use a valid email address.");
	   return false;
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		if(showAlerts) alert("Please use a valid email address.");
	   return false;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
		if(showAlerts) alert("Please use a valid email address.");
	   return false;
	 }
	
	 if (str.indexOf(" ")!=-1){
		if(showAlerts) alert("Please use a valid email address.");
	   return false;
	 }

	 return true					
}

function validPostalCode(pcode){

	var postalPattern = /^([0-9]{5})|(\s*[a-ceghj-npr-tvxy]\d[a-ceghj-npr-tv-z](\s)?\d[a-ceghj-npr-tv-z]\d\s*)$/i;
	var postalRegExp = new RegExp(postalPattern);

	if (postalRegExp.test(pcode) == false)
		return false;

	debug('postal is good');
	return true;	
}