JQuery :: Get Position Number Of Clicked Element?

Let's say I have a table with 5 rows;

<table id="tbl">
<tr><td>Please</td></tr>
<tr><td>help</td></tr>
<tr><td>me</td></tr>

[Code].....

Now if someone clicks on the row with content "help" (2nd), I want to catch the click with jquery .click() and know within the jquery code that the user clicked on the 2nd <tr> element within table#tbl.

If someone clicks on the <tr> with content "this", my jquery code has to return 5, because its the 5th row.