(function(){
	var ADHOST = '';
	var schlta = readCookie('schlta');
	function transitionalAd() {		
		if ( !document.getElementById('schlPageContent') ) return;
		var schlpc = document.getElementById('schlPageContent');
		var contentlinks = schlpc.getElementsByTagName('a');	
		for (var i = 0, j = contentlinks.length; i < j; i++) {
			if (/article.jsp|lessonplan.jsp|unitplan.jsp|collection.jsp/.test(contentlinks[i].href)) {
				contentlinks[i].onclick = function() {
					createCookie('schlta', schlta == null ? 1 : schlta = parseInt(schlta) + 1);
					location.href = ADHOST + "/content/ads/transitional.html?url=" + encodeURIComponent(this.href);
					return false;
				};
			}
		}	
		if ( !document.getElementById('adminITN') ) return;
		var adminITNlinks = document.getElementById('adminITN').getElementsByTagName('a');
		for (var i = 0, j = adminITNlinks.length; i < j; i++) {
			adminITNlinks[i].onclick = function() {
				createCookie('schlta', schlta == null ? 1 : schlta = parseInt(schlta) + 1);
				location.href = ADHOST + "/content/ads/transitional.html?url=" + encodeURIComponent(this.href);
				return false;
			};
			
		}
	}

	if (schlta == null || parseInt(schlta) < 1) {
		var h = location.host;
		if (h.indexOf('comdev2') > -1 || h.indexOf('teacherdev') > -1) { ADHOST = 'http://devweb01.scholastic.net'; }
		else if (h.indexOf('comqual2') > -1 || h.indexOf('teacherqual') > -1) { ADHOST = 'http://contentqa.scholastic.com'; }
		else { ADHOST = 'http://www2.scholastic.com'; }
		transitionalAd();
	}
})();