function productSearch() {
  var str = document.getElementById("txt_search_key").value.replace(/\s+/g, "");
  if (str == "") {
    alert("请输入检索关键字");
    return;
  }
  var query = document.getElementById("txt_search_key").value;
  var s = encodeURIComponent(query);
  location.href = "/search-" + s+".html";
}


function pressSearch(event) {
  if (event.keyCode == 13) 
  {
    productSearch();
  }
}



$(document).ready(function() {
    var lh = $("#sidebar").height();
    var rh = $("#main").height();
    if (lh > rh) {
        $("#main").height(lh);
    }
    else {
        $("#sidebar").height(rh);
    }
})