function fnArraySwitch( aArray, iFrom, iTo )
{
	var mStore = aArray.splice( iFrom, 1 )[0];
	aArray.splice( iTo, 0, mStore );
}
Modify an array by switching the position of two elements
 @method  fnArraySwitch
 @param   array aArray Array to consider, will be modified by reference (i.e. no return)
 @param   int iFrom From point
 @param   int iTo Insert point
 @returns void