// check form filled in properly
function checkForm () {
	var errorMsg = "The following errors have occurred:- \n ";	
	var returnCase = true;
	var regExpEmail = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
	var regExpPhone = /^\+?(\d+\s?\d+)+$/;
	//check a name has been entered
	if (document.enquiryForm.yourName.value.length<2) {
		errorMsg += "No name has been entered \n ";
		returnCase = false;
		document.enquiryForm.yourName.focus();
	}
	//check for valid email
	if (!regExpEmail.test(document.enquiryForm.yourMail.value)) {
		errorMsg +="An incorrect e-mail address has been entered \n ";
		if (returnCase == true) {
			document.enquiryForm.yourMail.focus();
		}
		returnCase = false;
	}
	//check that something has been entered in the Enquiry Field
	if (document.enquiryForm.subject.value.length<5) {
		errorMsg += "Please enter a bit more information in the subject field \n";
		if (returnCase == true) {
			document.enquiryForm.subject.focus();
		}
		returnCase = false;
	}
	//check that something has been entered in the Enquiry Field
	if (document.enquiryForm.visitornotes.value.length<10) {
		errorMsg += "Please enter a bit more information in the message field";
		if (returnCase == true) {
			document.enquiryForm.visitornotes.focus();
		}
		returnCase = false;
	}
	//display error message
	if (returnCase == false) {
		alert(errorMsg);
	}
	return returnCase;
}