function GetSubjectList()
    {
        __doPostBack("LinkButton3","");
    }
    function GradeSelect()
    {
        if(document.getElementById("GradeList").value=="")
        {
          alert("请选择年级");
          document.getElementById("GradeList").focus();
        }
        else
        {
            GetSubjectList();
        }
    }
    
    
  var MenuId=1; //存储的是当前菜单的id,默认为1表示视频
    function ChangeClassName(obj,id)
    {
     MenuId=id;
     obj.className=(id!=6?"titlehoverone":"titlehovertwo");
     GetObject("div_two").innerHTML=GetObject("Lbl_Grade").innerHTML+obj.innerHTML; //设置二级题目
      switch(id)
      {
        case 1: //视频
         for(var i=2;i<=5;i++)
         {
          GetObject("li_"+i).className="titlenormalone";
         }
         //学习资料
          GetObject("li_6").className="titlenormaltwo";
          GetObject("div_three").innerHTML=School.Components.BusApp.Teacher.GradeContent_GradeContentView.GetSubject().value;
        break;
        case 2: //题库
         for(var i=1;i<=5;i++)
         {
           if(i!=2)
           GetObject("li_"+i).className="titlenormalone";
         }
         //学习资料
          GetObject("li_6").className="titlenormaltwo";
          GetObject("div_three").innerHTML=School.Components.BusApp.Teacher.GradeContent_GradeContentView.GetSubject().value;
        break;
         case 3: //论坛
         for(var i=1;i<=5;i++)
         {
           if(i!=3)
           GetObject("li_"+i).className="titlenormalone";
         }
         //学习资料
          GetObject("li_6").className="titlenormaltwo";
          __doPostBack("BBSLinkButton","");
          GetObject("div_three").innerHTML=GetObject("Div_BBS").innerHTML;
        break;
        case 4: //博客
         for(var i=1;i<=5;i++)
         {
           if(i!=4)
           GetObject("li_"+i).className="titlenormalone";
         }
         //学习资料
          GetObject("li_6").className="titlenormaltwo";
          __doPostBack("LinkButton6","");
          GetObject("div_three").innerHTML=GetObject("Div_Block").innerHTML;
        break;
         case 5: //课件
         for(var i=1;i<=5;i++)
         {
           if(i!=5)
           GetObject("li_"+i).className="titlenormalone";
         }
         //学习资料
          GetObject("li_6").className="titlenormaltwo";
          __doPostBack("LinkButton7","");
          GetObject("div_three").innerHTML=GetObject("Div_Courseware").innerHTML;
        break;
         case 6: //学习资料
         for(var i=1;i<=5;i++)
         {
           
          GetObject("li_"+i).className="titlenormalone";
         }
          __doPostBack("LinkButton8","");
          GetObject("div_three").innerHTML=GetObject("Div_Study").innerHTML;
        break;
        
      }
    }
    //选择年级
    function ChangeGardeName(obj,id,SubName)
    {
     GetObject("LinkId").innerHTML="";
     GetObject("LinkId").innerHTML=School.Components.BusApp.Teacher.Ajax.GetGrade_Text(Number(id)).value+GetObject("GardeId").innerHTML;
     GetObject("GradeValue").value=id;
     GetObject("Lbl_SubjectLink").style.display="";
    }
    //选择科目时执行的操作
   function ShowGradeContent(Sys_SubjectId,Subject_Name)
   {
     var Grade=GetObject("GradeValue").value;
      switch(MenuId)
      {
        case 1: //根据科目查找视频
            location.href="../info/VedioFile_View.aspx?Grade="+Grade+"&Sys_SubjectId="+Sys_SubjectId;
        break;
        case 2: //题库
            location.href="../TitleView/TitleShow.aspx?Grade="+Grade+"&Sys_SubjectId="+Sys_SubjectId;
        break;
      }
   }
   
   function ShowGradeContent1(Sys_SubjectId,Subject_Name)
   {
     var Grade=GetObject("GradeValue").value;
     var Sys_SubjectId=GetObject("Sys_SubjectId").value;
      switch(MenuId)
      {
        case 1: //根据科目查找视频
            location.href="../info/VedioFile_View.aspx?Grade="+Grade+"&Sys_SubjectId="+Sys_SubjectId;
        break;
       
      }
   }
   function ShowGradeContent2(Sys_SubjectId,Subject_Name)
   {
     var Grade=GetObject("GradeValue").value;
     var Sys_SubjectId=GetObject("Sys_SubjectId").value;
      switch(MenuId)
      {
        
        case 1: //题库
            location.href="../TitleView/TitleShow.aspx?Grade="+Grade+"&Sys_SubjectId="+Sys_SubjectId;
        break;
      }
   }
   function ShowGradeContent3(Sys_SubjectId,Subject_Name)
   {
     var Grade=GetObject("GradeValue").value;
     var Sys_SubjectId=GetObject("Sys_SubjectId").value;
      switch(MenuId)
      {
        
        case 1: //题库
            location.href="../info/Blog.aspx?Grade="+Grade+"&Sys_SubjectId="+Sys_SubjectId;
        break;
      }
   }
   function ShowGradeContent4(Sys_SubjectId,Subject_Name)
   {
     var Grade=GetObject("GradeValue").value;
     var Sys_SubjectId=GetObject("Sys_SubjectId").value;
      switch(MenuId)
      {
        case 1: //题库
            location.href="../info/TeachingDwon.aspx?Grade="+Grade+"&Sys_SubjectId="+Sys_SubjectId;
        break;
      }
}