function validateform(form) {

	if (form.name.value == "") 
	{ 
	alert ("Please insert your name");
	form.name.focus();
	return false;
	}
	if (form.email.value == "") 
	{ 
	alert ("Please enter your email address");
	form.email.focus();
	return false;
	}
	
	if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(form.email.value)){
	alert ("Please enter a valid email address");
	form.email.focus(); 
	return false;
	}
	 var x=form.tel.value
		var anum=/(^\d+$)|(^\d+\.\d+$)/
		if (anum.test(x))
		return true;
		else{
		alert("Please input a valid telephone number!")
		form.tel.focus(); 
		return false;
		}
	if (form.mess.value.length == 0) 
	{ 
	alert ("Please enter a brief message");
	form.mess.focus();
	return false;
	}

	
	
	return true;
}
function postregform(regform) {

	if (regform.name.value == "") 
	{ 
	alert ("Please insert your name");
	regform.name.focus();
	return false;
	}
	if (regform.address.value == "") 
	{ 
	alert ("Please insert your address");
	regform.address.focus();
	return false;
	}
	if (regform.postcode.value == "") 
	{ 
	alert ("Please insert your postcode");
	regform.postcode.focus();
	return false;
	}
	if (regform.country.value == "*Please select") 
	{ 
	alert ("Please chose the country where you live");
	regform.name.focus();
	return false;
	}
		
	if (regform.email.value == "") 
	{ 
	alert ("Please enter your email address");
	regform.email.focus();
	return false;
	}
	if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(regform.email.value)){
	alert ("Please enter a valid email address");
	regform.email.focus(); 
	return false;
	}
	
	
	if (regform.password.value.length < 6) 
	{ 
	alert ("Please enter a password with more than 6 letters or numbers");
	regform.password.focus();
	return false;
	}
	if (regform.password.value !== regform.confirm_password.value) 
	{ 
	alert ("Your passwords do not match");
	regform.confirm_password.focus();
	return false;
	}
	var x=regform.tel.value;
		var anum=/(^\d+$)|(^\d+\.\d+$)/;
		if (anum.test(x))
		return true;
		else{
		alert("Please input a valid telephone number!")
		regform.tel.focus(); 
		return false;
		}
	
	return true;
}