var url ='../events/event_id.php?eventid=';
var http = createRequestObject();
function createRequestObject() {
   var objAjax;
   var browser = navigator.appName;
   if(browser == "Microsoft Internet Explorer"){
      objAjax = new ActiveXObject("Microsoft.XMLHTTP");
   }else{
      objAjax = new XMLHttpRequest();
   }
   return objAjax;
}

function getEvent(id){
   http.open('GET',url + escape(id));
   http.onreadystatechange = updateNewContent;
   http.send(null);
}

function updateNewContent(){
   if(http.readyState == 4){
     document.getElementById('event_main').innerHTML = http.responseText;
   }
}
function getEventurl(id){
    http.open('GET',url + escape(id));
    http.onreadystatechange = updateNewContent;
    http.send(null);
}