function search_focus() {
  if (document.getElementById) {
    var node = document.getElementById("search_content");
    if (node) {
      node.style.width = "180px";
      node.select();
    }
  }
}

function search_blur() {
  if (document.getElementById) {
    var node = document.getElementById("search_content");
    if (node) {
      node.style.width = "100px";
    }
  }
}