//	Javascript to tag file downloads and external links in Google Analytics
//	To use, place reference to this file should be placed at the bottom of all pages, 
//	just above the Google Analytics tracking code.
//	All outbound links and links to non-html files should now be automatically tracked.
//
//  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//	Created by: 	Colm McBarron, colm.mcbarron@iqcontent.com
//	Last updated: 	12-Feb-2006
//	+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
var hrefs = document.getElementsByTagName("a");
var link_path = "";
for (var l = 0; l < hrefs.length; l++)
{
	try
	{
		var link_path = hrefs[l].pathname.toLower();			// var link_path = hrefs[l].pathname
		if (location.host == hrefs[l].hostname)
		{
			// if (link_path.match(/\.(doc|pdf|xls|ppt|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3)$/))
			if (link_path.match(/\.(doc|pdf|xls|ppt|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3|dwg|igs|step|dxf)$/))
			{
				addtrackerlistener(hrefs[l]);
			}
		}
		else
		{
			addtrackerlistener(hrefs[l]);
		}
	}
	catch(err)
	{
		// do nothing
	}
}

function addtrackerlistener(obj)
{
	if (obj.addEventListener)
	{
		obj.addEventListener('click', trackfiles, true);
	}
	else if (obj.attachEvent)
	{
		obj.attachEvent('onclick', trackfiles);				// obj.attachEvent("on" + 'click', trackfiles);
	}
}

function trackfiles(array_element)
{
	file_path = "";
	if (location.host != this.hostname)
	{
		file_path = "/exlinks/" + ((array_element.srcElement) ? "/" + array_element.srcElement.hostname : this.hostname);
	}
	file_path = file_path + ((array_element.srcElement) ? "/" + array_element.srcElement.pathname : this.pathname);
	urchinTracker(file_path);
}