obr0 = new Image(); 
 obr0.src = '/infosite/_images/menu/oferta_dla_ciebie3.gif';
 obr1 = new Image(); 
 obr1.src = '/infosite/_images/menu/oferta_dla_twojej_firmy3.gif';
 obr2 = new Image(); 
 obr2.src = '/infosite/_images/menu/nowosci3.gif';
 obr3 = new Image(); 
 obr3.src = '/infosite/_images/menu/o_inteligo3.gif';
 obr4 = new Image(); 
 obr4.src = '/infosite/_images/menu/pomoc3.gif'; 

 var lock = true; // started
 var menu_t;   // time
 var navi_t;   // time
 var lastItemOn = -1;
 var lastItemOff = -1;
 var Menu = new Array();
 var menu_image = new Array();
 var SHOW = "visible";
 var HIDE = "hidden";
 var image_item_d = new Image();
 var image_item_l = new Image();
 image_item_d.src = "/infosite/_images/menu/menu_d.gif";
 image_item_l.src = "/infosite/_images/menu/menu_l.gif";
 var image_navi_d = new Image();
 var image_navi_l = new Image();
 image_navi_d.src = "/infosite/_images/navi/navi_d.gif";
 image_navi_l.src = "/infosite/_images/navi/navi_l.gif";




 /* Menu functions */
 function ItemInit(id) {
  if(browser.gecko){
   this.layer_css = document.getElementById(id).style;
   this.layer_ref = document;
   this.layer_0_ref = document;
   this.layer_1_ref = document;
  } else if(browser.opera){
   this.layer_css = document.getElementsByTagName("div")[id].style;
   this.layer_ref = document;
   this.layer_0_ref = document;
   this.layer_1_ref = document;
  } else if(browser.nav4up){
   this.layer_css = document.layers[id];
   this.layer_ref = document.layers[id].document;
  } else if(browser.ie4up){
   this.layer_css = document.all[id].style;
   this.layer_ref = document;
   this.layer_0_ref = document;
   this.layer_1_ref = document;
  }
  this.hide = ItemHide;
  this.show = ItemShow;
  this.name = id;
  this.on = menu_on;
  this.off = menu_off;
  return this;
 }
 function menu_on(o)
 {
  clearTimeout(menu_t);
  this.show();
  if((lastItemOn>=0) && (lastItemOn!=this.id)) {
   lastItemOff = this.id;
   var s = 'Menu[' + lastItemOn + '].hide()';
   eval(s);
  }
  lastItemOn = this.id;
  return;
 } 
 function menu_off(o)
 {
  var s = 'Menu[' + this.id + '].hide()';
  lastItemOff = -1;
  menu_t = setTimeout(s, 500);
 } 
 function ItemHide()
 {
  if((menuItem>=0) && (lastItemOff<0)) {
   eval("document.images.tab_" + menuItem + ".src = menu_image[" + menuItem + "][0].src;");
  }
  if((lastItemOn!=menuItem)) {
   eval("document.images.tab_" + this.id + ".src = menu_image[" + this.id + "][1].src;");
  }
  this.layer_css.visibility = HIDE;
  return;
 } 
 function ItemShow()
 {
  if((menuItem>=0) && (menuItem!=this.id)) {
   eval("document.images.tab_" + menuItem + ".src = menu_image[" + menuItem + "][1].src;");
  }
  eval("document.images.tab_" + this.id + ".src = menu_image[" + this.id + "][0].src;");
  this.layer_css.visibility = SHOW;
  return;
 }
 

function menu_init() {
  var k, j;
  var menu_left = [7, 139, 213, 306, 377]
  var menu_image_arr = ["/infosite/_images/menu/oferta_dla_ciebie.gif", "/infosite/_images/menu/oferta_dla_ciebie2.gif", "/infosite/_images/menu/oferta_dla_twojej_firmy.gif", "/infosite/_images/menu/oferta_dla_twojej_firmy2.gif", "/infosite/_images/menu/nowosci.gif", "/infosite/_images/menu/nowosci2.gif", "/infosite/_images/menu/o_inteligo.gif", "/infosite/_images/menu/o_inteligo2.gif", "/infosite/_images/menu/pomoc.gif", "/infosite/_images/menu/pomoc2.gif"];
  k = 0;
  for(j=0; menu_image_arr[k]; j++) {
   menu_image[j] = new Array()
   menu_image[j][0] = new Image();
   menu_image[j][0].src = menu_image_arr[k++];
   menu_image[j][1] = new Image();
   menu_image[j][1].src = menu_image_arr[k++];
  }
  for (k=0; k<menu_left.length; k++){
   Menu[k] = new ItemInit('menu_' + k);
   Menu[k].id = k;
   Menu[k].x = menu_left[k];
  }
  if(menuItem >= 0) {
   eval("document.images.tab_" + menuItem + ".src = menu_image[" + menuItem + "][0].src;");
  }
  lock = false;

 }