function createCourseSelector()
{	
	var courseSelector = "";
	var courseObj;
	var courseDIV;
	
	var courseByUniText = new Array("--- please select University ---","Carleton University","McGill University","University of Guelph","University of New Brunswick","University of Toronto","University of Waterloo","University of Western Ontario");
	var courseByUniValue = new Array("top","cu","mgu","ug","unb","ut","uw","uwo");
	var courseByTopicText = new Array("--- please select Course ---","Biology of Marine Mammals","Ecology and Adaptation of Marine Animals","Field Ornithology","Introduction to Atlantic Aquaculture","Introduction to Marine Biology","Marine Conservation and Biodiversity Assessment","Marine Invertebrate Biodiversity and Behaviour","Marine Mammals & Seabirds");
	var courseByTopicValue = new Array("top","bmm","eama","fo","iaa","imb","mcba","mibb","mms");
								
	if (DOM)		{courseObj = document.forms[0]; courseDIV = document.getElementById("courseByDIV").style;}
	else if (IE)	{courseObj = document.forms[0]; courseDIV = document.all("courseByDIV").style;}
	else if (NN)	{courseObj = document.layers["courseByDIV"].document.forms[0]; courseDIV = document.layers["courseByDIV"];}
	
	// course by uni
	for (k=courseObj.courseByUni.length; k>0; k--)
	{
		courseObj.courseByUni.options[k-1] = null;
	}
	for (i=0; i<courseByUniText.length; i++)
	{
		newCourse = new Option(courseByUniText[i],courseByUniValue[i]);
		courseObj.courseByUni.options[courseObj.courseByUni.options.length] = newCourse;
		courseObj.courseByUni.options[0].selected = true;
	}
	// course by topic
	for (k=courseObj.courseByTopic.length; k>0; k--)
	{
		courseObj.courseByTopic.options[k-1] = null;
	}
	for (i=0; i<courseByTopicText.length; i++)
	{
		newCourse = new Option(courseByTopicText[i],courseByTopicValue[i]);
		courseObj.courseByTopic.options[courseObj.courseByTopic.options.length] = newCourse;
		courseObj.courseByTopic.options[0].selected = true;
	}
	courseDIV.visibility = "visible";
}