function _byd(id)
{
  return document.getElementById(id);
}
function hide_div(id)
{
  var subobj=document.getElementById(id);
  subobj.style.display="none";
}
function show_div(id)
{
  var subobj=document.getElementById(id);
  subobj.style.display="block";
}
function show_flashcoms()
{
  hide_div('wcc-container');
  show_div('videochat_swf');
}