Replacing Returns

[rob day]

I have an input text field where I need to replace every return or tab entered.

I tried the GREP below thinking a global search for \n would get the returns. How would I replace returns?

var returns:RegExp = /\n/gi;
var str:String = vf.text;
str.replace(returns, " -- "));

[rob day]

I figured it out--it's \r not \n...