var peticion = false; 
if (window.XMLHttpRequest) {
      peticion = new XMLHttpRequest();
      } else if (window.ActiveXObject) {
            peticion = new ActiveXObject("Microsoft.XMLHTTP");
}

function ObtenerDatos(datos,divID) { 
	if(peticion) {
		 var obj = document.getElementById(divID); 
		 peticion.open("GET", datos); 
		 peticion.onreadystatechange = function()  { 
			  if (peticion.readyState == 4) { 
				   obj.innerHTML = peticion.responseText; 
			  } 
		 } 
	peticion.send(null); 
	}
}

function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=1,menubar=0,resizable=0,width=770,height=450');");
}