function show_vacancy(a){
var showdivname="vacancy_"+a;
var showdiv=document.getElementById(showdivname);
var vacancies=document.getElementById('vacancies');
var ourdivs=vacancies.getElementsByTagName('div');

var spanname="vacancy_title_"+a;
var span=document.getElementById(spanname);
var ourspans=vacancies.getElementsByTagName('span');

	for (i=0; i<ourdivs.length; i++){
		ourdivs[i].style.visibility="hidden";
		ourdivs[i].style.position="absolute";
	}
	
	for (i=0; i<ourspans.length; i++){
		ourspans[i].style.color="#666666";
	}	
	
	
	showdiv.style.visibility="visible";
	showdiv.style.position="relative";
	showdiv.style.marginTop="-15px";	
	span.style.color="#d83f1b";

	
}