function get_el(el)
{
	return document.getElementById(el);
}

function show_el(el)
{
	curr_el = el;
	obj = get_el(el);
	obj.style.display = "block";
	obj.style.visibility = "visible";
}

function hide_el(el)
{
	obj = get_el(el);
	obj.style.display = "none";
	obj.style.visibility = "hidden";
}

function ValidRqForm(p_vf)
{
	//p_vf = document.validform;

	if (p_vf.traveler_first_name.value == '')
	{
		alert('Please enter your first name!');
		p_vf.traveler_first_name.focus();
		return false;
	}
	else if (p_vf.traveler_last_name.value == '')
	{
		alert('Please enter your last name!');
		p_vf.traveler_last_name.focus();
		return false;
	}
	else if (p_vf.traveler_email.value == '')
	{
		alert('Please enter your e-mail!');
		p_vf.traveler_email.focus();
		return false;
	}
	else if (!p_vf.traveler_email.value.match("^.+@.+\..+$"))
	{
		alert("Please enter a valid email address!");
		p_vf.traveler_email.focus();
		return false;
	}
	else if (p_vf.traveler_departing_place.value == '0')
	{
		alert('Please enter your country!');
		p_vf.traveler_departing_place.focus();
		return false;
	}
	else if (p_vf.traveler_tr_duration.value == '')
	{
		alert('Please specify the duration of your journey!');
		p_vf.traveler_tr_duration.focus();
		return false;
	}
	else
		return true;
}