/****************************************************
     Author: Brian J Clifton
     Url: http://www.advanced-web-metrics.com/scripts
     This script is free to use as long as this info is left in
     
     Combined script for tracking file downloads:
		/parent URL/filename
	 
****************************************************/

function addLinkerEvents() {
	
	var as = document.getElementsByTagName("a");
	var extTrack = ["www.aahperd.org","iweb.aahperd.org"];
	// List of local sites that should not be treated as an outbound link. Include at least your own domain here
	
	var extDoc = [".doc",".docx",".xls",".zip",".pdf"];
	//List of file extensions on your site. Add/edit as you require
		
	for(var i=0; i<as.length; i++) 
	{
		var flag = 0;
		var tmp = as[i].getAttribute("onclick");
		
		// Tracking electronic documents - doc, xls, pdf, exe, zip
		for (var j=0; j<extDoc.length; j++) 
		{
			if (as[i].href.indexOf(extTrack[0]) != -1 && as[i].href.indexOf(extDoc[j]) != -1) 
			{
				as[i].onclick = function()
				{ 
					var parentURL = this;
					parentURL = parentURL.ownerDocument;
					parentURL = parentURL.URL;	
					parentURL = parentURL.split(extTrack[0]);
					var realURLcomponents = this.href.split("/");														
					_gaq.push(['_trackPageview', parentURL[1] + '/' + realURLcomponents[realURLcomponents.length -1]]); 
				}
				//alert(as[i] +"  downloads" +splitResult[1])
				break;
			}
		}

	}
}