function on1() 
{if (!document.images) return; document.a.src = "images/butt_11_sel.gif";} 
function on2() 
{if (!document.images) return; document.b.src = "images/butt_10_sel.gif";}
function on3() 
{if (!document.images) return; document.c.src = "images/butt_03_sel.gif";}
function on4() 
{if (!document.images) return; document.d.src = "images/butt_07_sel.gif";}
function on5() 
{if (!document.images) return; document.e.src = "images/butt_05_sel.gif";}
function on6() 
{if (!document.images) return; document.f.src = "images/butt_accueil_sel.gif";}
function on7() 
{if (!document.images) return; document.g.src = "images/butt_english_sel.gif";}

function off1() 
{if (!document.images) return; document.a.src = "images/butt_11.gif";}
function off2() 
{if (!document.images) return; document.b.src = "images/butt_10.gif";}
function off3() 
{if (!document.images) return; document.c.src = "images/butt_03.gif";}
function off4() 
{if (!document.images) return; document.d.src = "images/butt_07.gif";}
function off5() 
{if (!document.images) return; document.e.src = "images/butt_05.gif";}
function off6() 
{if (!document.images) return; document.f.src = "images/butt_accueil.gif";}
function off7() 
{if (!document.images) return; document.g.src = "images/butt_english.gif";}

var imgslist = new Array(
"images/lable_01_sel.gif",
"images/lable_02_sel.gif",
"images/lable_03_sel.gif",
"images/lable_04_sel.gif",
"images/lable_05_sel.gif",
"images/lable_accueil_sel.gif",
"images/labelbar_plan_sel.gif"); 

var imgs=new Array(); 
for (x=0; x<imgslist.length; x++) 
 if (document.images) 
  {imgs[x]=new Image(); imgs[x].src = imgslist[x];}