Multidimensional Array , Slice and Sort

programming flash
1

how can I slice and sort an array like this :

 
var Table:Array = new Array();
Table[0]=[3];
Table[0][0]="01/01/2007 0:00";
Table[0][1]=100;
Table[0][2]=500;
 
Table[1]=[3];
Table[1][0]="01/01/2007 0:15";
Table[1][1]=15;
Table[1][2]=75;
 
Table[2]=[3];
Table[2][0]="01/01/2007 0:30";
Table[2][1]=150;
Table[2][2]=750;

I need a copy of this array sliced … just last two elements