var sortedOn = 0;

	function SortTable(sortOn) {
	
		var table = document.getElementById('sortable');
		var tbody = table.getElementsByTagName('tbody')[0];
		var rows = tbody.getElementsByTagName('tr');

		var rowArray = new Array();
		for (var i=0, length=rows.length; i<length; i++) {
			rowArray[i] = rows[i].cloneNode(true);
		}
		
		if (sortOn == sortedOn) { rowArray.reverse(); }
		else {
			sortedOn = sortOn;
			if (sortedOn == 0) {
				rowArray.sort(RowCompareNumbers);
			}
			else if (sortedOn == 3) {
				rowArray.sort(RowCompareDollars);
			}
			else {
				rowArray.sort(RowCompare);
			}
		}
		
		var newTbody = document.createElement('tbody');
		for (var i=0, length=rowArray.length; i<length; i++) {
			newTbody.appendChild(rowArray[i]);
		}
		
		table.replaceChild(newTbody, tbody);
	}
	
	function RowCompare(a, b) {
	
		var aVal = a.getElementsByTagName('td')[sortedOn].firstChild.nodeValue;
		var bVal = b.getElementsByTagName('td')[sortedOn].firstChild.nodeValue;
		return (aVal == bVal ? 0 : (aVal > bVal ? 1 : -1));
	}

	function RowCompareNumbers(a, b) {
	
		var aVal = parseInt(a.getElementsByTagName('td')[sortedOn].firstChild.nodeValue);
		var bVal = parseInt(b.getElementsByTagName('td')[sortedOn].firstChild.nodeValue);
		return (aVal - bVal);
	}

	function RowCompareDollars(a, b) {
	
		var aVal = parseFloat(a.getElementsByTagName('td')[sortedOn].firstChild.nodeValue.substr(1));
		var bVal = parseFloat(b.getElementsByTagName('td')[sortedOn].firstChild.nodeValue.substr(1));
		return (aVal - bVal);
	}