function Cache_DIV(){
  var arg = arguments;
  var obj;
  for( var i=0; i< arg.length; i++){
    obj = document.getElementById( arg[i]);
    if( obj){
      obj.style.display = "none";  
    }
  }
}
function Cache_ALL(){
	var arg = arguments;
	if (arg[0].indexOf('area_blogs_')==0){
		Cache_DIV('area_blogs_1','area_blogs_2','area_blogs_3');
	}
	else if (arg[0].indexOf('area_tous_')==0){
		Cache_DIV('area_tous_1','area_tous_2','area_tous_3','area_tous_4','area_tous_5');
	}
	else if (arg[0].indexOf('area_')==0){
		Cache_DIV('area_blogs','area_galerie','area_tous','area_perso');
	}
}
function Affiche_DIV(){
  var arg = arguments;
  var obj;
  Cache_ALL(arg[0]);
    obj = document.getElementById(arg[0]);
    if( obj){
      obj.style.display = "block";
    }
}