function ajax(url){

elementHTML = $('catis');
	var url = 'cat.php'+url;
	o_options = new Object();
	o_options = {method: 'get',onCreate:creat/*,onSuccess:success*/};
	function creat()
	{
		$('catis').innerHTML='CHARGEMENT...';
	}
	var laRequete = new Ajax.Updater(elementHTML,url,o_options);

}

function tr(trie){
		var source=$('source').value;
		var cat=$('cat').value;
		var recherche = $('recherche').value;
		
		elementHTML = $('catis');
	var url = 'cat.php?trie='+trie+'&source='+source+'&cat='+cat+'&recherche='+recherche;
	
	o_options = new Object();
	o_options = {method: 'get',onCreate:creat/*,onSuccess:success*/};
	function creat()
	{
		$('catis').innerHTML='CHARGEMENT...';
	}
	var laRequete = new Ajax.Updater(elementHTML,url,o_options);
}
function index(inc){

elementHTML = $(""+inc);
	var url = 'news_td.php';
	o_options = new Object();
	o_options = {method: 'get',onCreate:creat/*,onSuccess:success*/};
	function creat()
	{
		$(""+inc).innerHTML='CHARGEMENT...';
	}
	var laRequete = new Ajax.Updater(elementHTML,url,o_options);

}