function isEmpty(s) { // ensures fields are not empty
	if (s.length == 0 ) return true;
}
   
function isWhite (s) {
	var i;
	var whitespace = " \t\n\r";
	if (isEmpty(s)) return true;
	for (i = 0; i < s.length; i++) {
		var c = s.charAt(i);
		if (whitespace.indexOf(c) == -1) return false;
	}
	return true;
}

function isCharsInBag (s, bag) {  
	var i;
	for (i = 0; i < s.length; i++) {   
		var c = s.charAt(i);
		if (bag.indexOf(c) == -1) return false;
	}
	return true;
}

function BuildStr(s, s1) { // Builds a string
	if (s.length > 0) s = s + ",\n";
	s = s + s1;
	return s;
}

var val;
   
function hasRead() {
	val = 1;
	document.registration.primary_company.focus();
}
   
function isEmail(s) {
	var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
	var check=/@[\w\-]+\./;
	var checkend=/\.[a-zA-Z]{2,3}$/;

	if(((s.search(exclude) != -1)||(s.search(check)) == -1)||(s.search(checkend) == -1)){
		return false;
	}
	else {
		return true;
	}
}