function recherche(){
		if(window.ActiveXObject) var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		if(window.XMLHttpRequest) var xmlHttp = new XMLHttpRequest();
		
		document.getElementById('resultat').innerHTML = "<div style='text-align:center; margin-top: 50px;font-size: 150%; font-weight: bold; color: #666;'><img src=\"__image/wait_black.gif\" /></div>";
		
		var url = "./search.xhr.php";
		var iecache = new Date();
		var params = "motcle="+document.getElementById('motcle').value+"&ienocache="+iecache;
		xmlHttp.open("POST", url, true);
		xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		xmlHttp.setRequestHeader("Content-length", params.length);
		xmlHttp.setRequestHeader("Connection", "close");
		
		xmlHttp.onreadystatechange = function(){
			if(xmlHttp.readyState == 4){
				var getFileContent = xmlHttp.responseText;
				document.getElementById('resultat').innerHTML = getFileContent;
			}
		}
		xmlHttp.send(params);
	}