[jQuery] Using keypress for key combination

[jQuery] Using keypress for key combination


I have been looking for a way to have a key combination fire an alert,
but searching the group I have not really found what I was looking
for. There are some plugins that I have found, but I would rather
just use jQuery without anything additional.
So, I found this:
$("input:text").bind("keypress",function(e) {
var key = e.keyCode || e.charCode;
if(key == 13) {
alert("You clicked a key!");
}
}
)
How could I have a key combination fire such, such as cntrl + d or
something similar?