function validate_form() {
	$("#form_errors").html();
	$("#form_errors").hide(0);

	var num_units = $("#num_units").val();
	if (num_units =='') {
		//units not selected
		$("#form_errors").html('Units not selected');
		$("#form_errors").show();
		return false;
	}

	var hear_about = $("#hear_about").val();
	if (hear_about =='') {
		//hear about not selected
		$("#form_errors").html('How did you hear about us not selected');
		$("#form_errors").show();
		return false;
	}

	var name = $("#name").val();
	name = jQuery.trim(name);
	$("#name").val(name);

	if (name =='') {
		//name not typed
		$("#form_errors").html('Please type your name');
		$("#form_errors").show();
		return false;
	}


	var email = $("#email").val();
	email = jQuery.trim(email);
	$("#email").val(email);

    if (!email.match(/^[a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/)) {
		//email not valid
		$("#form_errors").html('Please type a valid email');
		$("#form_errors").show();
    }
}