function on (name) {};
function off (name) {};
function preload(name, first, second, comment) {};

var pics = new Array();
var objCount=0;
var i;
var moveit = true;
var imagenes="";

var br=0;

var br_name = navigator.appName.substring(0,9);
var br_ver  = parseInt(navigator.appVersion.substring(0,3));

if (br_name == "Netscape"  ) { br=1; }
if (br_name == "Microsoft" ) { br=2; }

var PicturesOK = false;

if (br_ver>2) 
{ 
	PicturesOK=true; 
}

function preload(name,first,second,comment)
{
  if (PicturesOK)
  {
    var sa=new Array(6);
    pics[objCount] = sa;
    pics[objCount][0]= new Image();
    pics[objCount][0].src="/imagpl/"+first;
    pics[objCount][1]=new Image();
    pics[objCount][1].src="/imagpl/"+second;
    pics[objCount][2]=name;
    pics[objCount][3]=objCount;
    objCount++;
  }
}

function on(name)
{
 if (PicturesOK)
 {
    for (i=0; i<objCount; i++)
     {
       var sa=pics[i];  
       if (document.images[pics[i][2]]!=null)
        if (name==sa[2]) document.images[pics[i][2]].src=pics[i][1].src; 
     }
    return;

 } // browOk
}

function off(name)
{
  if (PicturesOK)
  {
    for (i=0; i<objCount; i++)
    {
       var sa=pics[i];
       if (document.images[pics[i][2]]!=null)
       if (name==sa[2]) document.images[pics[i][2]].src=pics[i][0].src; 
    }
    return;

  } // browOk
}

preload("menu_1a","menu_1a_off.jpg","menu_1a_on.jpg");
preload("menu_1b","menu_1b_off.jpg","menu_1b_on.jpg");
preload("menu_1c","menu_1c_off.jpg","menu_1c_on.jpg");
preload("menu_1d","menu_1d_off.jpg","menu_1d_on.jpg");
preload("menutipo_1","menutipo1_off.jpg","menutipo1_on.jpg");
preload("menutipo_2","menutipo2_off.jpg","menutipo2_on.jpg");
preload("menutipo_3","menutipo3_off.jpg","menutipo3_on.jpg");
preload("menutipo_4","menutipo4_off.jpg","menutipo4_on.jpg");
preload("menutipo_foro","foro_top_off.jpg","foro_top_on.jpg");