function validateForm(fName) {
	var emailTest=/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/; 
	var msgTxt = "";
	
	// enquiry form
	if (fName == "enquiry") {
	
		if (document.getElementById("firstname").value=="") {
			msgTxt = msgTxt + "\n- first name";
		}
		
		if (document.getElementById("lastname").value=="") {
			msgTxt = msgTxt + "\n- lastname";
		}
		
		if ((document.getElementById("email").value=="")||(!emailTest.test(document.getElementById("email").value))) {
			msgTxt = msgTxt + "\n- valid email";
		}
		
		if (document.getElementById("areacode").value=="") {
			msgTxt = msgTxt + "\n- phone area code";
		}
		
		if (document.getElementById("phone").value=="") {
			msgTxt = msgTxt + "\n- phone number";
		}
	}
	
	if (msgTxt != "") {
		alert("Please fill in the following fields:\n" + msgTxt);
		return false;
	}
	
}