function validate(x) {
	if (x.firstname.value=='') {
		alert('Please enter your Firstname...');
		x.firstname.focus();
		return false;
	}
	if (x.lastname.value=='') {
		alert('Please enter your Lastname...');
		x.lastname.focus();
		return false;
	}
	if (x.email.value=='') {
		alert('Please enter your e-mail address...');
		x.email.focus();
		return false;
	}
	
	emailregexp = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (!emailregexp.test(x.email.value)) {
		alert('Please enter a valid email address...');
		x.email.focus();
		return false;
	}

return true;
}