function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    menu01o = newImage("images/menu01o.gif");
    menu02o = newImage("images/menu02o.gif");
    menu03o = newImage("images/menu03o.gif");
    menu04o = newImage("images/menu04o.gif");
    menu05o = newImage("images/menu05o.gif");
    menu06o = newImage("images/menu06o.gif");

    r_menu01o = newImage("images/r_menu01o.jpg");
    r_menu02o = newImage("images/r_menu02o.jpg");
    r_menu03o = newImage("images/r_menu03o.jpg");
    r_menu04o = newImage("images/r_menu04o.jpg");
    r_menu05o = newImage("images/r_menu05o.jpg");
    r_menu06o = newImage("images/r_menu06o.jpg");
    r_menu07o = newImage("images/r_menu07o.jpg");
    r_menu08o = newImage("images/r_menu08o.jpg");
    r_menu09o = newImage("images/r_menu09o.jpg");
    r_menu10o = newImage("images/r_menu10o.jpg");

    go_inquiry_o = newImage("corpo/images/go_inquiry_o.gif");

    preloadFlag = true;
  }
}

function open_window(html_url,window_name,w,h){
	newWin = window.open(html_url,window_name);
}