function showHideBox(tl1, idBox1, tl2, idBox2)
{
	titleBox1 = document.getElementById(tl1).className;
	titleBox2 = document.getElementById(tl2).className;
  box1 = document.getElementById(idBox1).className;
	box2 = document.getElementById(idBox2).className;
  
  if (titleBox1 == 'VGGtitle')
  {
    document.getElementById(tl1).className = 'VGGtitleActive';
    document.getElementById(tl2).className = 'VGGtitle';
    document.getElementById(idBox1).className = 'VGGboxVisible';
    document.getElementById(idBox2).className = 'VGGboxHide';
  }
  
  if (titleBox1 == 'VGGtitleActive')
  {
    document.getElementById(tl1).className = 'VGGtitle';
    document.getElementById(idBox1).className = 'VGGboxHide';
    
  }
}