var xmlhttpobj;
var cacheinterval;
var AllowXmlHttpCache;
var CacheBuster;
var Nowtime = new Date();
var globalblogurl;

//in minutes:
cacheinterval = 15; 
// The following will allow/prevent caching by the xmlhttpobj object:
AllowXmlHttpCache = "no";
if (AllowXmlHttpCache == "yes"){
	CacheBuster = "AllowXmlHttpCache";
}else{
	CacheBuster = "cb=" + escape(String(Nowtime)) + "&";
}	
function refresh_blotter(blogurl){
	if (blogurl=="all"){
		blogurl = "/includes/blog_feeds/getcachedfile.aspx?" + CacheBuster + "interval=" + cacheinterval + "&reqfile=" + escape("/includes/blog_feeds/blogfeedjumbotron.aspx");
	}else{
		blogurl = "/includes/blog_feeds/getcachedfile.aspx?" + CacheBuster + "interval=" + cacheinterval + "&reqfile=" + escape("/includes/blog_feeds/blogfeedjumbotron.aspx?blog=") + blogurl;
	}
	

	////document.getElementById("blotter").innerHTML = document.getElementById("blotter").innerHTML + "<br /><br />" + blogurl + "<br /><br />";
	xmlhttpobj=GetXmlHttpObject();
	if (xmlhttpobj==null){
  		////alert ("Your browser does not support XMLHTTP!");
  		return;
  	}
	xmlhttpobj.onreadystatechange=stateChanged;
	xmlhttpobj.open("GET",blogurl,true);
	xmlhttpobj.send(null);
	globalblogurl = blogurl;
	//alert("OK, function was invoked");
}

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 stateChanged()
{
if (xmlhttpobj.readyState==4)
  {
  if (xmlhttpobj.status==200)
    {
    // our code here....
	document.getElementById("blotter").innerHTML = xmlhttpobj.responseText;
	//debug only
	////document.getElementById("blotter").innerHTML = document.getElementById("blotter").innerHTML + "<br /><br />" + globalblogurl + "<br /><br />";
    }
  else
    {
    ////alert("Problem retrieving XML data:" + xmlhttpobj.statusText);
    }
  }


}