function Tab(n) 
{
  for (i=1;i<=4;i++)
  {
    document.getElementById("s"+i).className="tab-2";
    document.getElementById("tab"+i).style.display='none';
  }
    document.getElementById("s"+n).className="tab-1";
    document.getElementById("tab"+n).style.display='';
}


function Tab2(n) 
{
  for (aa=1;aa<=5;aa++)
  {
    document.getElementById("a"+aa).className="tab2-2";
    document.getElementById("tab2"+aa).style.display='none';
  }
    document.getElementById("a"+n).className="tab2-1";
    document.getElementById("tab2"+n).style.display='';
}

function Tab3(n) 
{
  for (bb=1;bb<=6;bb++)
  {
    document.getElementById("b"+bb).className="tab3-2";
    document.getElementById("tab3"+bb).style.display='none';
  }
    document.getElementById("b"+n).className="tab3-1";
    document.getElementById("tab3"+n).style.display='';
}

function Tab4(n) 
{
  for (cc=1;cc<=5;cc++)
  {
    document.getElementById("c"+cc).className="tab4-2";
    document.getElementById("tab4"+cc).style.display='none';
  }
    document.getElementById("c"+n).className="tab4-1";
    document.getElementById("tab4"+n).style.display='';
}

function Tab5(n) 
{
  for (dd=1;dd<=6;dd++)
  {
    document.getElementById("d"+dd).className="tab5-2";
    document.getElementById("tab5"+dd).style.display='none';
  }
    document.getElementById("d"+n).className="tab5-1";
    document.getElementById("tab5"+n).style.display='';
}


function Tab6(n) 
{
  for (ee=1;ee<=5;ee++)
  {
    document.getElementById("e"+ee).className="tab6-2";
    document.getElementById("tab6"+ee).style.display='none';
  }
    document.getElementById("e"+n).className="tab6-1";
    document.getElementById("tab6"+n).style.display='';
}

function Tab7(n) 
{
  for (ff=1;ff<=4;ff++)
  {
    document.getElementById("f"+ff).className="tab7-2";
    document.getElementById("tab7"+ff).style.display='none';
  }
    document.getElementById("f"+n).className="tab7-1";
    document.getElementById("tab7"+n).style.display='';
}