function show2(what) { 
document.getElementById("pparvalux").style.display='none';
document.getElementById("panoushka").style.display='none'; 
document.getElementById("pbremont").style.display='none'; 
document.getElementById("plinks").style.display='none'; 
document.getElementById("pclarkestates").style.display='none'; 
document.getElementById("phealthcounter").style.display='none'; 
document.getElementById(what).style.display='block'; 
}