var button_active;
if ( document.images )
{
  
  navigation1_on = new Image ( );
  navigation1_off = new Image ( );
  navigation2_on = new Image ( );
  navigation2_off = new Image ( );
  navigation3_on = new Image ( );
  navigation3_off = new Image ( );
  navigation4_on = new Image ( );
  navigation4_off = new Image ( );
  navigation5_on = new Image ( );
  navigation5_off = new Image ( );
  navigation6_on = new Image ( );
  navigation6_off = new Image ( );
  navigation7_on = new Image ( );
  navigation7_off = new Image ( );
  navigation5b_on = new Image ( );
  navigation5b_off = new Image ( );
  navigation6b_on = new Image ( );
  navigation6b_off = new Image ( );
  navigation7b_on = new Image ( );
  navigation7b_off = new Image ( );
  navigation8b_on = new Image ( );
  navigation8b_off = new Image ( );
  
  navigation1_on_fr = new Image ( );
  navigation1_off_fr = new Image ( );
  navigation2_on_fr = new Image ( );
  navigation2_off_fr = new Image ( );
  navigation3_on_fr = new Image ( );
  navigation3_off_fr = new Image ( );
  navigation4_on_fr = new Image ( );
  navigation4_off_fr = new Image ( );
  navigation5_on_fr = new Image ( );
  navigation5_off_fr = new Image ( );
  navigation6_on_fr = new Image ( );
  navigation6_off_fr = new Image ( );
  navigation7_on_fr = new Image ( );
  navigation7_off_fr = new Image ( );
  navigation5b_on_fr = new Image ( );
  navigation5b_off_fr = new Image ( );
  navigation6b_on_fr = new Image ( );
  navigation6b_off_fr = new Image ( );
  navigation7b_on_fr = new Image ( );
  navigation7b_off_fr = new Image ( );
  navigation8b_on_fr = new Image ( );
  navigation8b_off_fr = new Image ( );
  
  navigation1_on_en = new Image ( );
  navigation1_off_en = new Image ( );
  navigation2_on_en = new Image ( );
  navigation2_off_en = new Image ( );
  navigation3_on_en = new Image ( );
  navigation3_off_en = new Image ( );
  navigation4_on_en = new Image ( );
  navigation4_off_en = new Image ( );
  navigation5_on_en = new Image ( );
  navigation5_off_en = new Image ( );
  navigation6_on_en = new Image ( );
  navigation6_off_en = new Image ( );
  navigation7_on_en = new Image ( );
  navigation7_off_en = new Image ( );
  navigation5b_on_en = new Image ( );
  navigation5b_off_en = new Image ( );
  navigation6b_on_en = new Image ( );
  navigation6b_off_en = new Image ( );
  navigation7b_on_en = new Image ( );
  navigation7b_off_en = new Image ( );
  navigation8b_on_en = new Image ( );
  navigation8b_off_en = new Image ( );
  
  language1_on = new Image ( );
  language1_off = new Image ( );
  language2_on = new Image ( );
  language2_off = new Image ( );
  language3_on = new Image ( );
  language3_off = new Image ( );

  navigation1_on.src = "images/navigation1_on.jpg";
  navigation1_off.src = "images/navigation1_off.jpg";
  navigation2_on.src = "images/navigation2_on.jpg";
  navigation2_off.src = "images/navigation2_off.jpg";
  navigation3_on.src = "images/navigation3_on.jpg";
  navigation3_off.src = "images/navigation3_off.jpg";
  navigation4_on.src = "images/navigation4_on.jpg";
  navigation4_off.src = "images/navigation4_off.jpg";
  navigation5_on.src = "images/navigation5_on.jpg";
  navigation5_off.src = "images/navigation5_off.jpg";
  navigation6_on.src = "images/navigation6_on.jpg";
  navigation6_off.src = "images/navigation6_off.jpg";
  navigation7_on.src = "images/navigation7_on.jpg";
  navigation7_off.src = "images/navigation7_off.jpg";
  navigation5b_on.src = "images/navigation5b_on.jpg";
  navigation5b_off.src = "images/navigation5b_off.jpg";
  navigation6b_on.src = "images/navigation6b_on.jpg";
  navigation6b_off.src = "images/navigation6b_off.jpg";
  navigation7b_on.src = "images/navigation7b_on.jpg";
  navigation7b_off.src = "images/navigation7b_off.jpg";
  navigation8b_on.src = "images/navigation8b_on.jpg";
  navigation8b_off.src = "images/navigation8b_off.jpg";
  
  navigation1_on_fr.src = "images/navigation1_on_fr.jpg";
  navigation1_off_fr.src = "images/navigation1_off_fr.jpg";
  navigation2_on_fr.src = "images/navigation2_on_fr.jpg";
  navigation2_off_fr.src = "images/navigation2_off_fr.jpg";
  navigation3_on_fr.src = "images/navigation3_on_fr.jpg";
  navigation3_off_fr.src = "images/navigation3_off_fr.jpg";
  navigation4_on_fr.src = "images/navigation4_on_fr.jpg";
  navigation4_off_fr.src = "images/navigation4_off_fr.jpg";
  navigation5_on_fr.src = "images/navigation5_on_fr.jpg";
  navigation5_off_fr.src = "images/navigation5_off_fr.jpg";
  navigation6_on_fr.src = "images/navigation6_on_fr.jpg";
  navigation6_off_fr.src = "images/navigation6_off_fr.jpg";
  navigation7_on_fr.src = "images/navigation7_on_fr.jpg";
  navigation7_off_fr.src = "images/navigation7_off_fr.jpg";
  navigation5b_on_fr.src = "images/navigation5b_on_fr.jpg";
  navigation5b_off_fr.src = "images/navigation5b_off_fr.jpg";
  navigation6b_on_fr.src = "images/navigation6b_on_fr.jpg";
  navigation6b_off_fr.src = "images/navigation6b_off_fr.jpg";
  navigation7b_on_fr.src = "images/navigation7b_on_fr.jpg";
  navigation7b_off_fr.src = "images/navigation7b_off_fr.jpg";
  navigation8b_on_fr.src = "images/navigation8b_on_fr.jpg";
  navigation8b_off_fr.src = "images/navigation8b_off_fr.jpg";
  
  navigation1_on_en.src = "images/navigation1_on_en.jpg";
  navigation1_off_en.src = "images/navigation1_off_en.jpg";
  navigation2_on_en.src = "images/navigation2_on_en.jpg";
  navigation2_off_en.src = "images/navigation2_off_en.jpg";
  navigation3_on_en.src = "images/navigation3_on_en.jpg";
  navigation3_off_en.src = "images/navigation3_off_en.jpg";
  navigation4_on_en.src = "images/navigation4_on_en.jpg";
  navigation4_off_en.src = "images/navigation4_off_en.jpg";
  navigation5_on_en.src = "images/navigation5_on_en.jpg";
  navigation5_off_en.src = "images/navigation5_off_en.jpg";
  navigation6_on_en.src = "images/navigation6_on_en.jpg";
  navigation6_off_en.src = "images/navigation6_off_en.jpg";
  navigation7_on_en.src = "images/navigation7_on_en.jpg";
  navigation7_off_en.src = "images/navigation7_off_en.jpg";
  navigation5b_on_en.src = "images/navigation5b_on_en.jpg";
  navigation5b_off_en.src = "images/navigation5b_off_en.jpg";
  navigation6b_on_en.src = "images/navigation6b_on_en.jpg";
  navigation6b_off_en.src = "images/navigation6b_off_en.jpg";
  navigation7b_on_en.src = "images/navigation7b_on_en.jpg";
  navigation7b_off_en.src = "images/navigation7b_off_en.jpg";
  navigation8b_on_en.src = "images/navigation8b_on_en.jpg";
  navigation8b_off_en.src = "images/navigation8b_off_en.jpg";
  
  language1_on.src= "images/language1_on.jpg";
  language1_off.src= "images/language1_off.jpg";
  language2_on.src= "images/language2_on.jpg";
  language2_off.src= "images/language2_off.jpg";
  language3_on.src= "images/language3_on.jpg";
  language3_off.src= "images/language3_off.jpg";
}

function button_on ( imgName )
{
  if ( document.images )
  {
    butOn = eval ( imgName + "_on.src" );
    document[imgName].src = butOn;
  }
 // alert(imgName.substring(10));
}

function button_off ( imgName )
{
  if ( document.images )
  {
  	if (imgName.substring(10) == button_active){
  		alert("idem");
  	}else{
    		butOff = eval ( imgName + "_off.src" );
    		document[imgName].src = butOff;
    	}
  }
}

function button_on_fr ( imgName )
{
  if ( document.images )
  {
    butOn = eval ( imgName + "_on_fr.src" );
    document[imgName].src = butOn;
  }
 // alert(imgName.substring(13));
}

function button_off_fr ( imgName )
{
  if ( document.images )
  {
  	if (imgName.substring(13) == button_active){
  		alert("idem");
  	}else{
    		butOff = eval ( imgName + "_off_fr.src" );
    		document[imgName].src = butOff;
    	}
  }
}

function button_on_en ( imgName )
{
  if ( document.images )
  {
    butOn = eval ( imgName + "_on_en.src" );
    document[imgName].src = butOn;
  }
 // alert(imgName.substring(13));
}

function button_off_en ( imgName )
{
  if ( document.images )
  {
  	if (imgName.substring(13) == button_active){
  		alert("idem");
  	}else{
    		butOff = eval ( imgName + "_off_en.src" );
    		document[imgName].src = butOff;
    	}
  }
}