function getZip(user, album)
{
	document.getElementById("zip-link").innerHTML='Hang on! Just creating your zip file...';
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	  {
	  alert ("Your browser does not support AJAX!");
	  return;
	  } 
	var url="zip.php";
	url=url+"?c="+user;
	url=url+"&a="+album;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function stateChanged() 
{ 
if (xmlHttp.readyState==4)
{ 
if (xmlHttp.responseText.substr(0,1) == '1')
{
	parts = new Array;
	parts = xmlHttp.responseText.split("|");
	document.getElementById("zip-link").innerHTML='<a href="./viewerzipfiles/' + parts[1] + '">Download Album (.zip - ' + parts[2] + 'MB)</a>';
}
else
{
	document.getElementById("zip-link").innerHTML='Failed to create zip archive';
}
}
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
	{
	xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	}
  catch (e)
	{
	xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
  }
return xmlHttp;
}