var defaultCampaign = "void";
var defaultChannel	= "void";
var defaultSource	= "void";

var extraQueryParameters = "";


try{
	
	//Getting value of WM parameter
	key = "wm".replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
	var regexS = "[\\?&]wm=([^&#]*)";
	var regex = new RegExp( regexS );
	var results = regex.exec( window.location.href );
	key = results[1];
	
	//Getting siteStats info
	var campaignInfo = campaignDomains[key].split('|');
	
	extraQueryParameters = "&ns_campaign="+campaignInfo[0]+"&ns_mchannel="+campaignInfo[1]+"&ns_source="+campaignInfo[2]+"&ns_fee=0";
	
} catch( e ) { 
	//Defaul tracking
	extraQueryParameters = "&ns_campaign="+defaultCampaign+"&ns_mchannel="+defaultChannel+"&ns_source="+defaultSource+"&ns_fee=0";

}
querystring += extraQueryParameters;