<div onkeydown="javascript:if(event.keyCode==13) search()">

<br >

ISBN<span style="color:red">*</span>:<input name="Text1" type="text" id="searchbox" value="-" >

书名<span style="color:red">*</span>:<input name="Text1" type="text"  id="searchbox2" value="">

年：<select name="Select1" id="Select1">

                <option></option>

                <option></option>

                <option></option>

                <option></option>

                <option>-------</option>

                <option></option>

                <option></option>

                <option></option>

                            </select>

季：<select name="Select2" id="Select2" style="width: 96px">

                <option>春季</option>

                <option>秋季</option>

            </select>

<input name="button1" type="submit" value="提交" id="searchbtn" onclick="search()"> 

    <script type="text/jscript">

     //js获取地址栏参数

        function getQueryString(name)

        {

            var reg=new RegExp("(^|&)" + name + "=([^&]*)(&|$)","i");

            var r=window.location.search.substr().match(reg);

            if(r!=null)

                return unescape(r[]);return null;

        }

        // 调用方法

        //alert(GetQueryString("参数名1"));

        //alert(GetQueryString("参数名2"));

        //alert(GetQueryString("参数名3"));

        //查找函数

        function search()

        {

            //alert("ok");

            var k=document.getElementById("searchbox").value;

            k=escape(k);

            if(k==null)

            document.getElementById("serchbox").value="-";

            var k2=document.getElementById("searchbox2").value;

            if(typeof(k2)=="undefined" || k2==null || k2.length<) //string 类型 内容为空

            {

              alert("请输入书名！");

              document.getElementById("searchbox2").focus();

              return;

            }

            k2=escape(k2);

            //if(typeOf(k2)=="undefined")

            //document.getElementById("searchbox2").value="图";                        

            var drop = document.getElementById("Select1");

            var k3=drop.options[drop.selectedIndex].value;

            //获取select的值

            k3=escape(k3);

            var drop2 = document.getElementById("Select2");

            var k4=drop2.options[drop2.selectedIndex].value;

            //获取select的值

            k4=escape(k4);

            window.location.href="http://point/jcfs/SitePages/xtjh.aspx?k="+k+"&k2="+k2+"&k3="+k3+"&k4="+k4;

        }

    //传递参数刷新界面后保留之前输入的控件框中的内容 首次加载时 k k2均为空

    //escape 对字符串进行编码 unescape 对字符串进行解码

    document.getElementById("searchbox").value=unescape(getQueryString("k"));

    document.getElementById("searchbox2").value=unescape(getQueryString("k2"));

    //if(k2=="_")    document.getElementById("searchbox2").value="";

    var drop = document.getElementById("Select1");

     for(i=;i<drop.length;i++)

     {//给select赋值

        if(unescape(getQueryString("k3"))==drop.options[i].value)

         {

                 drop.options[i].selected=true

          }

     }

     var drop2 = document.getElementById("Select2");

      for(i=;i<drop2.length;i++)

       {//给select赋值

          if(unescape(getQueryString("k4"))==drop2.options[i].value)

           {

              drop2.options[i].selected=true

            }

        }//end

       </script>

        <br >

        </div>