var students = [{"name": "Doris D. Cox", "ranking": 2},{"name": "Corey A. Wilkerson", "ranking": 1},{"name": "Celena G. Williams", "ranking": 4},{"name": "Stacy S. Williams", "ranking": 5},{"name": "Patrick D. Sheppard", "ranking": 3}];

		// Comparer Function
		function GetSortOrder(prop) {
		    return function(a, b) {
		        if (a[prop] > b[prop]) {
		            return 1;
		        } else if (a[prop] < b[prop]) {
		            return -1;
		        }
		        return 0;
		    }
		}

		// Original array of objects
		function originalArray(){
			document.write("==== Original Array of Objects ====");
			for(key in students)
			{
				document.write("<br> name : "+students[key].name+", ranking : "+students[key].ranking);
			}
		}

		// Order by ranking
		function orderByRanking(){
			document.write("<br><br>==== Order By Ranking ====");
			students.sort(GetSortOrder("ranking"));
			for (var item in students) {
			    document.write("<br>"+students[item].ranking+" -> "+ students[item].name);
			}
		}

		// Average ranking
		function avgRanking(){
			document.write("<br><br>==== Average Ranking ====");
			var sum = 0;
			for(key in students)
			{
				sum+= students[key].ranking;
			}
			document.write("<br>"+(sum/(students.length)));
		}
		originalArray();
		orderByRanking();
		avgRanking();