// JavaScript Document

var $ = function(id) { return document.getElementById(id); };

function validateEmail(emailAddr) {
	
	var user, domain, regex,isMatch;
	if (emailAddr == null || emailAddr.length < 6 || emailAddr.indexOf(".") == -1 || emailAddr.indexOf("@") == -1) {
		return false;
	}

	regex = /(^\w+\.?&?\-?\w*)@/;
	isMatch = regex.exec(emailAddr);
	if (isMatch) {
		user = RegExp.$1;	 
	} else {
		return false;
	}

	regex = /(^\[\d{1,3}\.\d{1,3}\.\d{1,3}.\d{1,3}\])$/;
	isMatch = regex.exec(emailAddr);
	if (isMatch) {
		domain = RegExp.$1;
		return true;
	} else {
		regex = /@(\w{2,}\.(\w{2,}\.)?[a-zA-Z]{2,4})$/;
        isMatch = regex.exec(emailAddr);
		if (isMatch){
			domain = RegExp.$1;
		} else {
			return false;
		}
	}
	
	return true;
}

function getBrowserOs() {
	var OsObject = "";
	if(navigator.userAgent.indexOf("MSIE")>0) {
		return "MSIE";
	}
	if(isFirefox=navigator.userAgent.indexOf("Firefox")>0){
		return "Firefox";
	}
	if(isSafari=navigator.userAgent.indexOf("Safari")>0) {
		return "Safari";
	} 
	if(isCamino=navigator.userAgent.indexOf("Camino")>0){
		return "Camino";
	}
	if(isMozilla=navigator.userAgent.indexOf("Gecko/")>0){
		return "Gecko";
	}
}