function sendData(param, page,place)
	 {
	  if(document.all)
	  {
   //Internet Explorer
	   var XhrObj = new ActiveXObject("Microsoft.XMLHTTP" ) ;
	  }//fin if
	  else
	  {
      //Mozilla
	   var XhrObj = new XMLHttpRequest();
	  }//fin else

	  //définition de l'endroit d'affichage:
	  var content = document.getElementById(place);
	  XhrObj.open("POST", page);
	  //Ok pour la page cible
	  XhrObj.onreadystatechange = function()
	  {
	   if (XhrObj.readyState == 4 && XhrObj.status == 200)
		content.innerHTML = XhrObj.responseText ;
		document.all['bg'].style.height=document.all['fx'].offsetHeight;

			$(document).ready(function(){
				$(".lightbox").lightbox();
			});
	

	  }
		

		  XhrObj.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		  XhrObj.send(param);
	 }//fin fonction SendData

function suivant (id_menu){

	var id_menuu = id_menu;
	
	document.getElementById('fx').innerHTML="<img  src='ajax-loader.gif' border='0'>";

	sendData('id_menu='+id_menuu,'getmenu.php','container');


	document.getElementById('bg').style.height = document.getElementById('fx').offsetHeight;

	document.location="#haut_resto"; 

	$(document).ready(function(){
			$(".lightbox").lightbox();
		});

}