//on enleve les erreurs eventuelles
function no_error()
{ return true; }
window.onerror = no_error;

function open_popup(page,hauteur,largeur)
//ouvre une popup
{ 
	window.open(page,"Popup","status=no,scrollbars=yes,resizable=yes,height="+hauteur+",width="+largeur+",top=0,left=0"); }

function menu(){
//gere les class
 var i,x,tB,j=0,tA=new Array(),arg=menu.arguments;
 if(document.getElementsByTagName){for(i=4;i<arg.length;i++){tB=document.getElementsByTagName(arg[i]);
  for(x=0;x<tB.length;x++){tA[j]=tB[x];j++;}}
                                                                                                          
for(i=0;i<tA.length;i++){
  if(tA[i].className)
{if(tA[i].id==arg[1])
{if(arg[0]==1){
  tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}
else{tA[i].className=arg[2];}
  }
else if(arg[0]==1 && arg[1]=='none')
{if(tA[i].className==arg[2] || tA[i].className==arg[3]){
  tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}
  }
else if (arg[0]==0 && arg[1]=='none')
{ if(tA[i].className==arg[2]){tA[i].className=arg[3];}
}
//else if(tA[i].className==arg[2]){tA[i].className=arg[3];}
}}}
}