indexOf on multidimensional array

var clipArray:Array = new Array();
clipArray[0] = new Array();
clipArray[1] = new Array();
clipArray[0][0]=2
clipArray[0][1]=3
clipArray[1][0]=4
clipArray[1][1]=5
trace(clipArray[0].indexOf(3));

This traces '1' cause 3 can be found in [0][1] of the multidimensional array and 1 is the second value of that 0.

Using indexOf this way I can determine that second value in which in this case the value 3 can be found.

I want to to take this one step further and use indexOf somehow to determine the first value of the clipArray variable. So looking for 2 or 3 should trace 0 and looking for 4 or 5 should trace 1. Is there some way to do this?