function hide_search(dname) {
  if(document.getElementById(dname).style.display == "none") {
    document.getElementById(dname).style.display = "block";
    if(dname=='more') document.getElementById(dname + "-arrow").src = "images/arrow-show2.jpg";
    else document.getElementById(dname + "-arrow").src = "images/arrow-show.jpg";
  } else {
    document.getElementById(dname).style.display = "none";
    if(dname=='more') document.getElementById(dname + "-arrow").src = "images/arrow-hide2.jpg";
    else document.getElementById(dname + "-arrow").src = "images/arrow-hide.jpg";
  }
}

function update_minmax() {
    document.search_form.pmin.value = document.min_max.min.value;
    document.search_form.pmax.value = document.min_max.max.value;
    alert(document.search_form.pmax.value);
    alert(document.min_max.min.value);
    document.getElementById("prange-box").style.display = "none";
}

function show_box(dname) {
    document.getElementById(dname + "-box").style.display = "block";
}