// JavaScript Document

function opener1()
{
  MM_changeProp('opener1_container','','style.display','block','DIV');
  MM_changeProp('opener2_container','','style.display','none','DIV');
  MM_changeProp('opener3_container','','style.display','none','DIV');
  MM_changeProp('opener4_container','','style.display','none','DIV');
}

function opener2()
{
  MM_changeProp('opener1_container','','style.display','none','DIV');
  MM_changeProp('opener2_container','','style.display','block','DIV');
  MM_changeProp('opener3_container','','style.display','none','DIV');
  MM_changeProp('opener4_container','','style.display','none','DIV');
}

function opener3()
{
  MM_changeProp('opener1_container','','style.display','none','DIV');
  MM_changeProp('opener2_container','','style.display','none','DIV');
  MM_changeProp('opener3_container','','style.display','block','DIV');
  MM_changeProp('opener4_container','','style.display','none','DIV');
}

function opener4()
{
  MM_changeProp('opener1_container','','style.display','none','DIV');
  MM_changeProp('opener2_container','','style.display','none','DIV');
  MM_changeProp('opener3_container','','style.display','none','DIV');
  MM_changeProp('opener4_container','','style.display','block','DIV');
}