Algorithms/Find maximum/java script method 2

<script language="javascript">

  function findMax(i_intaryTab) {     
    if ( i_intaryTab.length == 2 ) {
       if ( i_intaryTab[0] > i_intaryTab[1] ) 
          return i_intaryTab[0];
       else
          return i_intaryTab[1];
    } // end if     
    if ( i_intaryTab.length == 1 )
       return i_intaryTb[0];
    var yy = i_intaryTab.length / 2;
    var p_intaryA = new Array(yy);
    var p_intaryB = new Array(yy);
    for (var p_intI = 0; p_intI < yy ; p_intI += 1)  
        p_intaryA[p_intI] = i_intaryTab[p_intI];
    var p_intK = 0;     
    for (var p_intJ = yy; p_intJ < i_intaryTab.length; p_intJ +=1,p_intK += 1) 
        p_intaryB[p_intK] = i_intaryTab[p_intJ];
    var o_intM = findMax(p_intaryA);
    var o_intN = findMax(p_intaryB);      
    if ( o_intM > o_intN )
       return o_intM;
    else
       return o_intN;
  } // end method    
  var cc = new Array(1,2,3,4);
  document.write(findMax(cc));  
 </script>