function show (id)
{
  var ids = new Array ('0','1','2','3','4','5','6','7','8')
  for (i=0;i<ids.length;i++)
  {
    document.getElementById(ids[i]).style.display = 'none'
  }
  document.getElementById(id).style.display = 'block'
}
function hide (object) {
	document.getElementById(object).style.display = 'none';
}
/*function show(object) {
	document.getElementById(object).style.display='block';
}*/
function aboCon(id)
{
  var ids = new Array('abo','con')
  for(i=0;i<ids.length;i++)
  {
    document.getElementById(ids[i]).style.display = 'none'
  }
  document.getElementById(id).style.display = 'block'
}