function valSubscribeForm() {
	if((document.getElementById('subscribe-email').value == '') || (document.getElementById('subscribe-email').value == 'email address')) {
		alert('Please enter your email address');
		return false;
	}
	
	if(!emailCheck()) {
		return false;
	}
	
	if(document.getElementById('subscribe-terms').checked == false) {
		alert('Please check that you have read and agree with the EnergyLogic Privacy Policy.');
		return false;
	}
	return true;
}

function emailCheck () {
	var emailStr = document.getElementById('subscribe-email').value;
	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("Please enter a valid email address.");
	    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] != "info") &&
	    (domArr[domArr.length-1] != "name") &&
	    (domArr[domArr.length-1] != "arpa") &&
	    (domArr[domArr.length-1] != "coop") &&
	    (domArr[domArr.length-1] != "aero")) {
	        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;
}