function Show_BlkBlackTab(BlkBlackTabid_num,BlkBlackTabnum){

     for(var i=0;i<5;i++)

     {

         document.getElementById("BlkBlackTabcontent_"+BlkBlackTabid_num+i).style.display="none";

     }

     

     for(var i=0;i<5;i++)

     {

         document.getElementById("BlkBlackTabmenu_"+BlkBlackTabid_num+i).className="BlackColor"+i;

     }

     document.getElementById("BlkBlackTabmenu_"+BlkBlackTabid_num+BlkBlackTabnum).className="BlackOn";

     document.getElementById("BlkBlackTabcontent_"+BlkBlackTabid_num+BlkBlackTabnum).style.display="block";

    }

参数说明下：

   BlkBlackTabid_num：菜单ID

   BlkBlackTabnum：显示内容ID

   i：菜单个数

   BlackOn：css样式名