function zmen_cenu(users_id)
{

ind=document.getElementById("vel_prov").selectedIndex;



if (users_id)
{
vase_cenax=document.getElementById("link_vase_cena"+ind).innerHTML;
document.getElementById("vase_cena").innerHTML=vase_cenax;
};

body=document.getElementById("link_body"+ind).innerHTML;
cena=document.getElementById("link_cena"+ind).innerHTML;

document.getElementById("act_body").innerHTML=body;
document.getElementById("act_cena").innerHTML=cena;


}