function submit2() {
  document.left_form.action = document.URL;
  document.left_form.submit();
}
function clear_formfield(field) {
  field.value = '';
}

function fill_min_pricefield(field,txt) {
  if( field.value == '' ) field.value = txt;
}
function fill_max_pricefield(field,txt) {
	if( field.value == '' ) field.value = txt;
}