<!--
function changeAreaSel(anm,val){
   if(val != ""){
      document.hypomap.area_type.value = anm;
      document.hypomap.submit();
   }
}

function changeSpanSel(){
   var arr_name = document.hypomap.area_type.value;
   var sel_num  = document.all(arr_name).selectedIndex;
   var area_sel = document.all(arr_name).options[sel_num].value;
   if(area_sel != "") document.hypomap.submit();
}
//-->