//<script>
function menu_on (td_element)
{

	var td_to_use = document.getElementById(td_element);
	td_to_use.style.background = "#005B00";
}

function menu_off (td_element)
{
	var td_to_use = document.getElementById(td_element);
	
	td_to_use.style.background = "none";
}


function vacancy_on (td_element)
{
	var td_to_use_ref = document.getElementById('td_ref_' + td_element);
	var td_to_use_job = document.getElementById('td_job_' + td_element);
	var td_to_use_location = document.getElementById('td_location_' + td_element);
	var td_to_use_date = document.getElementById('td_date_' + td_element);

	td_to_use_ref.style.background = "#005B00";
	td_to_use_job.style.background = "#005B00";
	td_to_use_location.style.background = "#005B00";
	td_to_use_date.style.background = "#005B00";
}

function vacancy_off (td_element)
{
	var td_to_use_ref = document.getElementById('td_ref_' + td_element);
	var td_to_use_job = document.getElementById('td_job_' + td_element);
	var td_to_use_location = document.getElementById('td_location_' + td_element);
	var td_to_use_date = document.getElementById('td_date_' + td_element);

	td_to_use_ref.style.background = "none";
	td_to_use_job.style.background = "none";
	td_to_use_location.style.background = "none";
	td_to_use_date.style.background = "none";
}