// by www.wizzardweb.co.uk

    function validate() {

    var number = /^[0-9]*$/ //regular expression defining a number /^[0-9]*$/ 
	var alpha = /[0-9]/  //regular expresssion /[a-zA-Z]/ ----- /^([a-zA-Z]+)$/
	var theMessage = "Please complete the following: \n-----------------------------------\n";
    var noErrors = theMessage

    // make sure field is not blank
	if (document.contact.name.value=="") {
	theMessage = theMessage + "\n --> Your name";
	}
	
	// make sure field is not blank
	if (document.contact.name.value.match(alpha)){
	theMessage = theMessage + "\n --> Your name must not be numerical";
	}
	
	// validate an e-mail address
	if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(document.contact.email.value)){
	theMessage = theMessage + "\n --> Email address empty or not valid";
	}
	
	// make sure field is not blank
	if (document.contact.message.value=="") {
	theMessage = theMessage + "\n --> Question / Comment or Other";
	}
	
	// make sure field is not blank
	if (document.contact.spamcode.value=="") {
	theMessage = theMessage + "\n --> Enter WIZZARDWEB";
	}
	
	// make sure field is not blank
	//if (document.contact.ref_number.value.search(number)==-1){
	//theMessage = theMessage + "\n --> Your unique confirmation number must be numeric\n\n  Please check your entry, and try again!";
	//}
	
	 // If no errors, submit the form
    if (theMessage == noErrors) {
    return true;

    } else {

    // If errors were found, show alert message
    alert(theMessage);
    return false;
    }
    }