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 == 'title')
  {
    document.getElementById(tl1).className = 'titleActive';
    document.getElementById(tl2).className = 'title';
    document.getElementById(idBox1).className = 'boxVisible';
    document.getElementById(idBox2).className = 'boxHide';
  }
  
  if (titleBox1 == 'titleActive')
  {
    document.getElementById(tl1).className = 'title';
    document.getElementById(idBox1).className = 'boxHide';
    
  }
}