function   browse()
  {
  var brows=null; 
               try 
               { 
                   brows=new ActiveXObject("Msxml2.XMLHTTP"); 
                } 
            catch(e)
            { 
                  try 
                   { 
                      brows=new ActiveXObject("Microsoft.XMLHTTP"); 
                   }
             catch(oc)
            { 
                     brows=null 
                   } 
              } 
           if ( !brows && typeof XMLHttpRequest != "undefined" ) 
            { 
               brows=new XMLHttpRequest() 
             } 
           return brows 
  }
  
  function   HDDSM()   //<!--硬盘品牌-->
  {   
  var http=browse();
  //var    svalue = obj.value;  
  http.open("GET","/js/AJAX_HDDSM.aspx?idd=",false);   
  http.send();   
  var   str   =   http.responseText;   

document.getElementById("yppp").length = 0;
document.getElementById("yplx").length = 0;
document.getElementById("ypxh").length = 0;

                  document.getElementById("yppp").options.add(new Option("全部硬盘品牌","0"));
                  if(str!="")//如果返回的数据不是空
                  {
                     //把字符串分割成数组
                     var allArray = str.split(",");
                    //循环这个数组
                     for(var i=1;i<allArray.length;i++)
                     {
                        //分割成数组
                       var thisArray = allArray[i].split("|");

                        document.getElementById("yppp").options.add(new Option(thisArray[1].toString(),thisArray[0].toString()));
                     }
                  }
  } 
  
  function   Brand()   //<!--硬盘类型-->
  {   
  var http = browse();
  //var    svalue = obj.value;
 
  http.open("GET","/Columns/Company/AJAX_HDDSMlx.aspx?idd1="+document.getElementById("yppp").value,false);   
  http.send();   
  var   str   =   http.responseText;   
 //alert(str);

document.getElementById("yplx").length = 0;
document.getElementById("ypxh").length = 0;
                  
                  document.getElementById("yplx").options.add(new Option("全部硬盘类型","0"));
                  if(str!="")//如果返回的数据不是空
                  {
                     //把字符串分割成数组
                     var allArray = str.split(",");
                    //循环这个数组
                     for(var i=1;i<allArray.length;i++)
                     {
                        //分割成数组
                       var thisArray = allArray[i].split("|");

                        document.getElementById("yplx").options.add(new Option(thisArray[1].toString(),thisArray[0].toString()));
                     }
                  }
  }  
  
  function   Type()   //<!--硬盘型号-->
  {   
  //browse();
  //var    svalue = obj.value;

  var http = browse();  
  http.open("GET","/Columns/Company/AJAX_HDDSMxl.aspx?idd2="+document.getElementById("yplx").value,false);   
  http.send();   
  var   str   =   http.responseText;   
 //alert(str);
    
document.getElementById("ypxh").length = 0;
                  
                  document.getElementById("ypxh").options.add(new Option("全部硬盘系列","0"));
                  if(str!="")//如果返回的数据不是空
                  {
                     //把字符串分割成数组
                     var allArray = str.split(",");
                    //循环这个数组
                     for(var i=1;i<allArray.length;i++)
                     {
                        //分割成数组
                       var thisArray = allArray[i].split("|");

                        document.getElementById("ypxh").options.add(new Option(thisArray[1].toString(),thisArray[0].toString()));
                     }
                  }
  }
  
function checkpost()
{
//document.getElementById("ypxh").length = 0;
 //var t1=document.form2.ypxh.value;
 if(document.form2.ypxh.value=="" || document.form2.ypxh.value==0){
 alert("请选择好硬盘品牌、类型、系列");
 //document.form1.textfield.focus();
 return false;
 }

  
return true; 
}