var figsd=document.getElementById("idfigs"), centd=document.getElementById("idcent"), engd=document.getElementById("ideng");

set_posabout();

function set_posabout()
{
  figsd.style.left=posleft + 597 + "px";
  centd.style.left=posleft + 592 + "px";
  engd.style.left=posleft + 597 + "px";
  figsd.style.visibility = 'visible';
  centd.style.visibility = 'visible';
  engd.style.visibility = 'visible';
}

function set_posaboutre()
{
  set_pos();
  set_posabout();
}

function startabout() 
{
 window.onresize=set_posaboutre;
}