// Tab Js
  function tab(n){
 var tabnav="tab"+n;
 var tabid="tabid"+n;
 
 cleardisplay();

 document.getElementById(tabid).style.display="block";
 document.getElementById(tabnav).className="box1";
 document.getElementById(tabnav).style.color="#1F6563";
  }
  function cleardisplay(){
 for (i=1;i<3;i++)
 {
  var cleartabid="tabid"+i;
  var tabnavid="tab"+i;
  document.getElementById(cleartabid).style.display="none";
  document.getElementById(tabnavid).className="box2";
  document.getElementById(tabnavid).style.color="#999999";

 }
  }