function loadXMLDoc(url,cfunc)
{
	if (window.XMLHttpRequest)
	  {// code for IE7+, Firefox, Chrome, Opera, Safari
	  xmlhttp=new XMLHttpRequest();
	  }
	else
	  {// code for IE6, IE5
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
	xmlhttp.onreadystatechange=cfunc;
	xmlhttp.open("GET",url,true);
	xmlhttp.send();
}

function load_guest_form(n,id)
{
	loadXMLDoc("guest_form.php?n="+n+"&event_id="+id,function()
	  {
	  if (xmlhttp.readyState==4 && xmlhttp.status==200)
		 {
		 document.getElementById("guest_form").innerHTML=xmlhttp.responseText;
		 }
	  });
}

function showHint(str)
{
	if (str.length==0)
	{
	document.getElementById("txtHint").innerHTML="";
	return;
	}
	if (window.XMLHttpRequest)
	{// code for IE7+, Firefox, Chrome, Opera, Safari
	xmlhttp=new XMLHttpRequest();
	}
	else
	{// code for IE6, IE5
	xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	xmlhttp.onreadystatechange=function()
	{
		if (xmlhttp.readyState==4 && xmlhttp.status==200)
		{
			document.getElementById("availability").innerHTML=xmlhttp.responseText;
		}
	}
	xmlhttp.open("GET","gethint.php?name="+str,true);
	xmlhttp.send();
}