var xmlhttp;

function showMenu(url2,id)
{

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }


var url=url2;
//url=url+"?v1="+str;
//url=url+"&sid="+Math.random();
url=url+"?sid="+Math.random()+'&id='+id;
xmlhttp.onreadystatechange=stateChanged;

if(id){
	limpiarEstilos();
	obj = document.getElementById(id);
	obj.className = 'active';
	//alert(obj.className);
}

xmlhttp.open("GET",url,true);
xmlhttp.send(null);
return false;

}

function stateChanged()
{
	if (xmlhttp.readyState==1)
	{
	document.getElementById("viewPage").innerHTML='Loading...';
	}
	if (xmlhttp.readyState==4) 
	{
	document.getElementById("viewPage").innerHTML=xmlhttp.responseText;
	}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}

function limpiarEstilos(){
	var menus = new Array(7);
	menus[0] = 'Lunes';
	menus[1] = 'Martes';
	menus[2] = 'Miercoles';
	menus[3] = 'Jueves';
	menus[4] = 'Viernes';
	menus[5] = 'Sabado';
	menus[6] = 'Domingo';
	
	aux = '';
	for (i=0; i<7; i++){
     	aux = menus[i];
	    obj = document.getElementById(aux);
		obj.className = '';
	}
}