geuni

var arr:Array = [10, 5, 8, 9, 15];
//trace (min);
function chNumber (arr, func)
{
var valueN:Number;
for (var i = 0; i < arr.length; i++)
{
//var xx = arr[0];
if (valueN == undefined)
{
  valueN = arr[i];
}
var t:Number = arr[i];
valueN = func (t, valueN);
//trace (min);
}
return valueN;
}
var aa=chNumber(arr,Math.min)
trace(aa);
========================================
var aa=chNumber(arr,Math.max)
trace(aa);

function chNumber (arr:Array, str:String)
{
var valueN:Object = new Object ();
for (var i = 0; i < arr.length; i++)
{
//var xx = arr[0];
if (valueN.n == undefined)
{
  valueN.n = arr[i];
  valueN.id = i;
}
var t:Number = arr[i];
switch (str)
{
case "min" :
  if (t < valueN.n)
  {
   //trace (" i : " + i);
   valueN.n = t;
   valueN.id = i;
  }
  break;
case "max" :
  if (t > valueN.n)
  {
   valueN.n = t;
   valueN.id = i;
  }
  break;
}
//valueN = func (t, valueN);
//trace (min);
}
return valueN;
}
var minCheck:Object = chNumber (tarr, "min");
var maxCheck:Object = chNumber (tarr, "max");
trace ("id : " + minCheck.id + " n : " + maxCheck.n);