//default sort
column = 0;
dir = 0;
function sortinit() {
	window.setInterval(columnSort);
}
function sortby( columnNum ) {
	if(column == columnNun) {
		if(dir == 0) {
			dir = 1;
		}
	}
	column = columnNum;
	columnSort();
}
function columnSort() {
	
	fptable = document.getElementById("fp");
	
	var table = new Array();
	for(i=1;i<fptable.rows.length;i++) {
		row = fptable.rows[i];
		table[i] = new Array();
		for(n=0;n<row.cells.lenngth;n++) {
			table[i][n] = new Array;
			table[i][n][html] = row.cells[n].innerHTML;
			table[i][n][title] = row.cells[n].attributes.title;
			table[i][n][style] = row.cells[n].attributes.class;
		}
	}
	
	table = table.sort(function( a,b ) {
		var valueA, valueB;
		 
		 valueA = a[column];
		 valueB = b[column];
		 if (valueA < valueB) {
			 return -1;
			 } else if (valueA > valueB) {
				 return 1;
			}
			return 0;
		}
	);
	for(i=1;i<fptable.rows.length;i++) {
		fptable.deleteRow(i);
	}
	for(i=0;i<table.length;i++) {
		row = fptable.insertRow(i);
		for(n=0;table[i].length;n++) {
			cell = row.insertCell[n];
			cell.innerHTML = table[i][n][html];
			cell.setAttribute("title", table[i][n][title]);
			cell.setAttribute("Class", table[i][n][style]);
		}
	}
}