function emailCheck (emailStr) {
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	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 1;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	// Start by checking that only basic ASCII characters are in the strings (0-127).
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			alert("Ths username contains invalid characters.");
			return 1;
   			}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			alert("Ths domain name contains invalid characters.");
			return 1;
   			}
	}
	// See if "user" is valid 
	if (user.match(userPat)==null) {
		alert("The username doesn't seem to be valid.");
		return 1;
	}
	/* 	if the e-mail address is at an IP address (as opposed to a symbolic
		host name) make sure the IP address is valid. */
	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 1;
   				}
		}
		return 0;
	}
	// Domain is symbolic name.  Check if it's valid.
 		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 does not seem to be valid.");
			return 1;
   			}
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && 
		domArr[domArr.length-1].search(knownDomsPat)==-1) {
		alert("The address must end in a well-known domain or two letter " + "country.");
		return 1;
	}
	if (len<2) {
		alert("This address is missing a hostname!");
		return 1;
	}
	return 0;
}
//  validText does simple string validation to insure required fields are filled in
function validText(value, fieldName) {
	result = 0
	if ( value.length == 0 ) {
		message = 'Please enter a value for ' + fieldName;
		alert(message);
		result = 1;
	}
	return result;
}
//  Simple check on data input, then submit form
function CheckInput() {
	ok = 0;
	ok += validText(document.inqform.name.value, "Your Name");
	//ok += validText(document.inqform.comp.value, "Company Name");
	ok += validText(document.inqform.message.value, "Comments");
	ok += validText(document.inqform.loc.value, "City");
	ok += validText(document.inqform.ldesc.value, "Location Description");
	ok += emailCheck(document.inqform.email.value);
	if ( ok == 0 ) {
		return true;
	} else {
		return false;
	}
}