Tracing Keycode with JScript
Tracing KeyCode using JScript for the client side validation is as mentioned in the below example. function TraceKeyCodeValu(e) { if(((e.which) ? e.which : event.keyCode) == 120) { alert('F9 Encountered..'); } } This function is called on the KEYDOWN event of the text box as INPUT id="txtUsrIp" type="text" onkeydown="TraceKeyCodeValu(event);