function getCampaignIds(possible_campaigns)
{
	var present_cids = [];
	for (var i = 0; i < possible_campaigns.length; i++)
	{
		var cid = possible_campaigns[i];
		if (document.getElementById('cid' + cid))
		{
			present_cids.push(cid);
		}
	}
	return present_cids.join('-');
}

function getURLParam(name)
{
	name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
	var regexS = "[\\?&]"+name+"=([^&#]*)";
	var regex = new RegExp( regexS );
	var results = regex.exec( window.location.href );
	if( results == null )
		return "";
	else
		return results[1];
}