var xmlhttp=false;
if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
 	try {
 		 xmlhttp = new XMLHttpRequest();
 	} catch (e) {
 		 xmlhttp=false;
 	}
}

/*@cc_on @*/
/*@if (@_jscript_version >= 5)
// JScript gives us Conditional compilation, we can cope with old IE versions.
// and security blocked creation of the objects.
if (!xmlhttp){
 try {
  xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
 } catch (e) {
  try {
   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (E) {
   xmlhttp = false;
  }
 }
}
@end @*/

if (!xmlhttp && window.createRequest) {
	try {
		xmlhttp = window.createRequest();
	} catch (e) {
		xmlhttp=false;
	}
}

var please_wait = "<h3>Espere por favor...</h3><img src=\"./images/loading.gif\" style=\"margin-bottom:50%\">";

function open_url(url, targetId) {

	if (url.indexOf("?")==-1)
		url=url+"?";
	else
	{
		var d = new Date();
		url=url+"&unique="+Math.floor((Math.random()*(d.getTime()-d.getMilliseconds())/1000));
	}

if(!xmlhttp)return false;
    var e=document.getElementById(targetId);if(!e)return false;
    if(please_wait)e.innerHTML = please_wait;
    xmlhttp.open("GET", url, true);
    xmlhttp.onreadystatechange = function() { response(url, e); }
    try{
      xmlhttp.send(null);
    }catch(l){
    while(e.firstChild)e.removeChild(e.firstChild);//e.innerHTML="" the standard way
    e.appendChild(document.createTextNode("request failed"));
  }
}

function response(url, e) {
  if(xmlhttp.readyState != 4)return;
    var tmp= (xmlhttp.status == 200 || xmlhttp.status == 0) ? xmlhttp.responseText : "<h3  style=\"margin-bottom:50%\">ĦĦĦOoops!!! ĦUn link roto!<br>Por favor contacte al webmaster de este sitio y da el siguiente codigo de error: <br>" + xmlhttp.status+" "+xmlhttp.statusText+"</h3>";
    var d=document.createElement("div");
    d.innerHTML=tmp;
    setTimeout(function(){
      while(e.firstChild)e.removeChild(e.firstChild);//e.innerHTML="" the standard way
      e.appendChild(d);
    },10)
}