<!-- main nav image swap functions -->
<!-- BEGIN ********************************************************************************* -->
function btnSwapOn(btn) {
	document[btn].src='images/'+btn+'_on.jpg';
}
function btnSwapOff(btn) {
	document[btn].src='images/'+btn+'.jpg';
}
<!-- END *********************************************************************************** -->
<!-- Check application form for missing vars -->
<!-- BEGIN ********************************************************************************* -->
function validate(email, user_phone, name_first, name_last, ans_1, hvImg) {
	var ans_2 = 'none';
	switch (hvImg) {
		case 0:
			ans_2 = 2;
			break;
		case 1:
			ans_2 = 4;
			break;
		case 2:
			ans_2 = 6;
			break;
		case 3:
			ans_2 = 8;
			break;
		case 4:
			ans_2 = 10;
			break;
	}
	isAlert = true;
	alertTxt='Please resolve issues below...\n\n';
	if (name_first == 'Enter First Name (required)' || name_first == '') {
		alertTxt +='\t> Enter First Name\n';
		isAlert = false;
	}
	if (name_last == 'Enter Last Name (required)' || name_last == '') {
		alertTxt +='\t> Enter Last Name\n';
		isAlert = false;
	}
	if (user_phone == 'Enter Phone Number (required)' || user_phone == '') {
		alertTxt +='\t> Enter Phone Number\n';
		isAlert = false;
	}
	if (email == 'Enter E-mail (required)' || email == '') {
		alertTxt += '\t> Enter Email Address';
		isAlert = false;
	} else {
		if ((email.indexOf(".") > 2) && (email.indexOf("@") > 0)) {
			alertTxt +='';
		} else {
			alertTxt += '\t> Incorrect Email Address format';
			isAlert = false;
		}
	}
	if (ans_1 != ans_2) {
		alertTxt +='\n\t> Incorrect Human Verification answer';
		isAlert = false;
	}
	if (isAlert) {
		document.contact.verify.value = 'yes';
		document.contact.submit();
	} else {
		alert(alertTxt);
	}
}
<!-- END *********************************************************************************** -->