//--data type validations

function emailValid(emailStr) {
	var checkTLD=0;	//don't require known top level domain
	var knownDomsPat=/ ^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum|cc)$/;
	var emailPat=/^(.+)@(.+)$/;
	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("The Email Address Is Invalid");
		return false;
	}

	var user=matchArray[1];
	var domain=matchArray[2];

	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			//alert("The Username Contains Invalid Characters.");
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			//alert("Ths Domain Name Contains Invalid Characters.");
			return false;
		}
	}
	if (user.match(userPat)==null) {
		//alert("The Username Is Invalid.");
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray>255) {
				//alert("The Destination IP Address Is Invalid.");
				return false;
			}
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			//alert("The Domain Name Is Invalid.");
			return false;
		}
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 &&
		domArr[domArr.length-1].search(knownDomsPat)==-1) {
		//alert("The Domain Name Extension Is Invalid");
		return false;
	}
	if (len<2) {
		//alert("The Address Is Missing A Hostname.");
		return false;
	}
	return true;
}

function nameValid(strName) {
	if (strName == "") return false;
	var patName = /^\w+[\w\s]*$/i;
	
	return (strName.match(patName) != null);
}

function phoneValid(strPhone) { return true; }

/*
function phoneValid(strPhone) {
	if (strPhone == "") return false;
	var patPhone = /^(\(?\d{3}\)?)?[.- ]?\d{3}[.- ]?\d{4}$/;
	
	return (strPhone.match(patPhone) != null);
}
*/