function checkEnquiry(){
	formObj=document.form_enquiry;
	if (formObj.name.value == "") {
		alert("Please enter a name");
		formObj.name.focus();
		return false;
	}
	
    if (formObj.email.value.length == 0) {
        alert("Please enter an email address.");
        formObj.email.focus();
        return false;
        }        
    else if (!checkEmail(formObj.email.value)) {
        alert("Please enter a valid email address.");
        formObj.email.focus();
        return false;
        }
    
    if (formObj.telephone.value == "") {
		alert("Please enter a telephone number");
		formObj.telephone.focus();
		return false;
	}
	
	if (formObj.message.value == "") {
		alert("Please enter your message");
		formObj.message.focus();
		return false;
	}
}
function checkEmail(sEmail) {
    if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(sEmail))
        return true
    else
        return false;
}