function changeclass(targetName, className) {
	target = document.getElementById(targetName);
	target.className = className;
} 

var ns4=document.layers
var ie4=document.all
var ns6=document.getElementById&&!document.all

function affiche() {
  if(ie4) { // Internet explorer
    submenuAgence.style.visibility = 'visible';
  }
  else if(ns4) { // Netscape 4.x
    document.submenuAgence.visibility = 'show';
  }
  else if(ns6) { // Netscape 6 (mozilla)
    var divns6 = document.getElementsByTagName("div")
    divns6['submenuAgence'].style.visibility = 'visible';
  }
}

function cache() {
  if(ie4) { // Internet explorer
    submenuAgence.style.visibility = 'hidden';
  }
  else if(ns4) { // Netscape 4.x
    document.submenuAgence.visibility = 'hidden';
  }
  else if(ns6) { // Netscape 6 (mozilla)
    var divns6 = document.getElementsByTagName("div")
    divns6['submenuAgence'].style.visibility = 'hidden';
	}
}

function affiche2() {
  if(ie4) { // Internet explorer
    submenuProjet.style.visibility = 'visible';
  }
  else if(ns4) { // Netscape 4.x
    document.submenuProjet.visibility = 'show';
  }
  else if(ns6) { // Netscape 6 (mozilla)
    var divns6 = document.getElementsByTagName("div")
    divns6['submenuProjet'].style.visibility = 'visible';
  }
}

function cache2() {
  if(ie4) { // Internet explorer
    submenuProjet.style.visibility = 'hidden';
  }
  else if(ns4) { // Netscape 4.x
    document.submenuProjet.visibility = 'hidden';
  }
  else if(ns6) { // Netscape 6 (mozilla)
    var divns6 = document.getElementsByTagName("div")
    divns6['submenuProjet'].style.visibility = 'hidden';
	}
}