$(document).ready(function(){
	$("a").click(function () {

		var pdfUrl = this.href;
		if(isPDF(pdfUrl)){
			var counterName = getCounterName(pdfUrl);
			
			this.href = "http://uk.sitestat.com/rbkc/rbkc/s?" + counterName + "&ns_type=pdf&ns_url=" + pdfUrl
		}
	});
});

function isPDF(url) {
	return url.indexOf(".pdf") > 0 || url.indexOf("idoc.ashx") > 0
}

function getCounterName(url) {
	var fileName = url.split('/').pop();
	if(isPDF(url)) {
		return fileName.split('.')[0];
	}
	else {
		var resultsArray = new RegExp('[\\?&]docid=([^&#]*)').exec(fileName);
		if(!resultsArray) { 
			return 0; 
		}
		else {
			return resultsArray[1];
		}
	}
}