cutting this replace code down

[pouncer]

[code]
function EmotReplace(text) {
var newText;

newText = text.replace(":)", '<img src="emoticons/smile.gif">');
newText = newText.replace(":-)", '<img src="emoticons/smile.gif">');

newText = newText.replace(/:O/g, '<img src="emoticons/surprised.gif">');
newText = newText.replace(/:-O/g, '<img src="emoticons/surprised.gif">');

return newText;
}
[/code]

any way i can cut them down? and on the second one i want to display the surprised.gif on all these texts
[code]
:-O
:O
:o
:-o
/code]

so it shud work on lowercase o as well. can someone please help me out[/code]

[fenway]

your regex should be /:(-)?[oO]/, assuming that works in JS.