Rounding number to 2decimal point

hi there!
what actionscript do i need to round off a number to 2 decimal points?
i have this script which brings me the number but consisting of 8 digits!

digital = _root.val[0].substr(0,_root.val[0].indexOf("<br>"));
digital = Math.abs(digital);
trace(digital);
trace(“Variable:”);
trace(_root.val(0));
temp_display = Math.round(digital);

if anyone has idea do give us a shout
thanks!