function checkInterestForm (form)
{
	var fullname = document.forms[0].fullname;
	var email = document.forms[0].email;
	var willpurchase = document.forms[0].agree;
	
	if (fullname.value == "") {
		alert( "Please enter your full name." );
		fullname.focus();
		return false;
	}
	
	if (email.value == "") {
		alert( "Please enter your email address." );
		email.focus();
		return false;
	}
  
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(email.value)) {
		alert( "Please enter a valid email address." );
		email.focus();
		return false;
	}

	return true ;
}