var test=false;

function change_page(page){



	var btn = document.getElementById('fondcontenu');
	if ((btn)&&!(test)) { btn.className= "fondtexte"; test=true;}


var serializer_rch;
if (Element.visible($('contenu'))) {Element.toggle('contenu');}
new Ajax.Updater('contenu',page ,{method: 'get', parameters: serializer_rch, evalScripts:true});
Effect.Appear('contenu',{duration:2});

}