var num_gebiet = 1;
var num_norm = 1;

function addOpt(type) {
 if (type=="gebiete"){
  document.getElementById('expert_gebiete').innerHTML += '<div id="es_gebiet_'+num_gebiet+'"><select name="es_gebiet['+num_gebiet+']" id="es_gebiet['+num_gebiet+']">'+gebiet_dropdown+'</select> <a href="javascript:void(0);" onclick="javascript:delOpt(\'es_gebiet_'+num_gebiet+'\');">&ndash;</a></div>'; 
  num_gebiet++;
 } else if (type == "normen") {
  document.getElementById('expert_normen').innerHTML += '<div id="es_norm_'+num_gebiet+'"><input name="es_norm['+num_gebiet+']" type="text" id="es_norm['+num_gebiet+']" size="18" /> <a href="javascript:void(0);" onclick="javascript:delOpt(\'es_norm_'+num_gebiet+'\');">&ndash;</a></div>';
  num_norm++;
 } else {
 
 }
}

function delOpt(name) {
 var opttr = document.getElementById(name);
 opttr.parentNode.removeChild(opttr);
}