function markExternalLinks() {
	var links = $('a[target="_blank"]');
	for(var i = 0; i < links.length; i++) {
		$(links[i]).addClass("external-link");
	}
	return true;	
}

function gaTrackDownloadableFiles() {

	var links = $('a');

	for(var i = 0; i < links.length; i++) {
		if (links[i].href.indexOf('.pdf') != "-1") {
			$(links[i]).attr("onclick","javascript: _gaq.push(['_trackEvent', 'Downloads', 'PDF', '"+links[i].href+"']);");
		} else if (links[i].href.indexOf('.csv') != "-1") {
			$(links[i]).attr("onclick","javascript: _gaq.push(['_trackEvent', 'Downloads', 'CSV', '"+links[i].href+"']);");
		} else if (links[i].href.indexOf('.doc') != "-1") {
			$(links[i]).attr("onclick","javascript: _gaq.push(['_trackEvent', 'Downloads', 'DOC', '"+links[i].href+"']);");
		} else if (links[i].href.indexOf('.ppt') != "-1") {
			$(links[i]).attr("onclick","javascript: _gaq.push(['_trackEvent', 'Downloads', 'PPT', '"+links[i].href+"']);");
		} else if (links[i].href.indexOf('.rtf') != "-1") {
			$(links[i]).attr("onclick","javascript: _gaq.push(['_trackEvent', 'Downloads', 'RTF', '"+links[i].href+"']);");
		} else if (links[i].href.indexOf('.xls') != "-1") {
			$(links[i]).attr("onclick","javascript: _gaq.push(['_trackEvent', 'Downloads', 'XLS', '"+links[i].href+"']);");
		}
	}

	return true;	
}


function showDownloadableFileIcons() {

	var links = $('a');

	for(var i = 0; i < links.length; i++) {
		if (links[i].href.indexOf('.pdf') != "-1") {
			$(links[i]).addClass("pdf-link");
		} else if (links[i].href.indexOf('.csv') != "-1") {
			$(links[i]).addClass("csv-link");
		} else if (links[i].href.indexOf('.doc') != "-1") {
			$(links[i]).addClass("doc-link");
		} else if (links[i].href.indexOf('.ppt') != "-1") {
			$(links[i]).addClass("ppt-link");
		} else if (links[i].href.indexOf('.rtf') != "-1") {
			$(links[i]).addClass("rtf-link");
		} else if (links[i].href.indexOf('.xls') != "-1") {
			$(links[i]).addClass("xls-link");
		}
	}

	return true;	
}

function tidyImageTitles() {
	$("img").each(function() {
		this.title = this.getAttribute("alt");
	});
}