//---------- required field colors
function setRequiredColors(fieldName) {
	var fieldText = fieldName + "Label";
	if (document.getElementById(fieldName).value == "") {
		document.getElementById(fieldText).style.color="red";
	} else {
		document.getElementById(fieldText).style.color="black";
	}
}

//---------- format currency
function formatCurrency(amount){
	var i = parseFloat(amount);
	if(isNaN(i)) { i = 0.00; }
	var minus = '';
	if(i < 0) { minus = '-'; }
	i = Math.abs(i);
	i = parseInt((i + .005) * 100);
	i = i / 100;
	s = new String(i);
	if(s.indexOf('.') < 0) { s += '.00'; }
	if(s.indexOf('.') == (s.length - 2)) { s += '0'; }
	s = minus + s;
	return s;
}

//---------- valid email
function validEmail(email) {
	var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(email)) {
		return true;
	} else {
		return false;
	}
}