function search()
    {
       var cateval=document.getElementById('stype').value;
       var skeyval=document.getElementById('skey').value;
       if(skeyval==""||skeyval=="请输入关键词")
       {
           alert("请输入关键字");
           return;
       }
      document.getElementById('skey').value=skeyval.replace(">","").replace("<","");
      document.getElementById("frmKey").submit();
    }