Monday, July 19, 2004

JavaScript Function Allow Number keys Only (only digit)

This function returns True if the passed keycode is a digit, False if it is not. This is useful when you want to limit the values of a input field to only numbers.


function isDigit(nKeyCode)
{
// Test for digit keycode (0-9).
if((nKeyCode > 47) && (nKeyCode < 58))
{
return true;
}

return false;
}