var request = false;
/*@cc_on @*/
/*@if (@_jscript_version >= 5)
try {
  request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    request = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
    request = false;
  }
}
@end @*/
if (!request && typeof XMLHttpRequest != 'undefined') {
  request = new XMLHttpRequest();
}


function contentSwitch(content) {
/*the name of your page with the content goes here */
var url = content;
request.open("GET", url, true);
request.onreadystatechange = go;
request.send(null);
}

function go() {
  if (request.readyState == 4) {
	  if (request.status == 200) {
		var response = request.responseText;
/* 'ajaxcontent' is the name of my div that will contain the info */
       
	   if(response=='')
	   {
        document.getElementById("mensaje").style.display = "none";
        document.getElementById("mensaje").innerHTML = response;
	   }
	   else
	   {
        document.getElementById("mensaje").style.display = "block";
        document.getElementById("mensaje").innerHTML = response;
	   }
	  }
  }
}