<table id="myTable2">
<tr>
<!--When a header is clicked, run the sortTable function, with a parameter,
0 for sorting by names, 1 for sorting by country: -->
<th onclick="sortTable(0)">Name</th>
<th onclick="sortTable(1)">Country</th>
</tr>
...
<script>
function sortTable(n) {
var table, rows, switching, i, x, y, shouldSwitch, dir, switchcount = 0;
table = document.getElementById("myTable2");
switching = true;
// Set the sorting direction to ascending: dir = "asc";
/* Make a loop that will continue until
no switching has been done: */
while (switching) {
// Start by saying: no switching is done: switching = false;
rows = table.getElementsByTagName("TR");
/* Loop through all table rows (except the
first, which contains table headers): */
for (i = 1; i < (rows.length - 1); i++) {
// Start by saying there should be no switching: shouldSwitch = false;
/* Get the two elements you want to compare,
one from current row and one from the next: */
x = rows[i].getElementsByTagName("TD")[n];
y = rows[i + 1].getElementsByTagName("TD")[n];
/* Check if the two rows should switch place,
based on the direction, asc or desc: */
if (dir == "asc") {
if (x.innerHTML.toLowerCase() > y.innerHTML.toLowerCase()) {
// If so, mark as a switch and break the loop: shouldSwitch= true;
break;
}
} else if (dir == "desc") {
if (x.innerHTML.toLowerCase() < y.innerHTML.toLowerCase()) {
// If so, mark as a switch and break the loop: shouldSwitch= true;
break;
}
}
}
if (shouldSwitch) {
/* If a switch has been marked, make the switch
and mark that a switch has been done: */
rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
switching = true;
// Each time a switch is done, increase this count by 1: switchcount ++;
} else {
/* If no switching has been done AND the direction is "asc",
set the direction to "desc" and run the while loop again. */
if (switchcount == 0 && dir == "asc") {
dir = "desc";
switching = true;
}
}
}
}</script>
Try it Yourself »
: