function modificare_subcategorii(ctgs) {
   var select_target = document.getElementById("categoria");
   var opt = "";
   var opt_txt = "";
   ctgs_array = ctgs.split(";");
   ctgs_text = "";
   select_target.innerHTML = "";
   for ( var i=0;i<ctgs_array.length;i++)
   {
      opt = document.createElement("option");
			opt_txt = document.createTextNode(ctgs_array[i]);
			opt.appendChild(opt_txt);
		  select_target.appendChild(opt);
   }
};