function RemoveEmailFormDefault(field){ field.value = ""; }

function EmailFormCheck(form) {
	
	errors = '';
	if( form.email_form_name.value == '' ) {
		errors += "Please enter your name\n";
	}
	if( form.email_form_email.value == '' ) {
		errors += "Please enter your email address\n";
	}
	if( form.business_address.value == '' ) {
		errors += "Please enter your business address\n";
	}
	if( form.email_form_phone.value == '' ) {
		errors += "Please enter your phone number\n";
	}
	if( form.email_form_type_sensor.value == '' ) {
		errors += "Please enter the type of sensor\n";
	}
	if( form.email_form_num_sensor.value == '' ) {
		errors += "Please enter the number of sensors\n";
	}
	if( errors != '' ) {
		alert(errors);
		return false;
	}
	return true;
}