function offTimer() {
        if (document.timer) {
                window.clearTimeout(document.timer);
                document.timer = null;
        }
}

function show(obj, div_id) {
        var td_width = document.getElementById('main_td').clientWidth;
        document.getElementById('sub' + obj).style.display = 'block';
}

function hide() {
        if (document.vis_l3) {
                        document.getElementById(document.vis_l3).style.display = 'none';
                        document.vis_l3 = null;
                };
        document.getElementById('sub' + document.vis).style.display = 'none';
}

function on(obj, div_id) {
        offTimer();
        if (document.vis) {
                hide();
        }
        show(obj, div_id);
}

function off(obj) {
        document.vis = obj;
        document.timer = window.setTimeout('hide()', 700);
}

function preload(obj) {
        new Image().src = obj;
};


function set_orange(img3Name) {
  if (document.images) {
    document[img3Name].src = '/img/1x1_orange.gif';
  }
}

function set_gray(img3Name) {
  if (document.images) {
    document[img3Name].src = '/img/1x1_gray.gif';
  }
}



if (document.images) {
  var off1 = new Image(60,10); off1.src = "/img/menu_main_company.gif";
  var on1 = new Image(60,10); on1.src = "/img/menu_main_company_1.gif";

  var off2 = new Image(41,10); off2.src = "/img/menu_main_services.gif";
  var on2 = new Image(41,10); on2.src = "/img/menu_main_services_1.gif";

  var off3 = new Image(150,11); off3.src = "/img/menu_main_info.gif";
  var on3 = new Image(150,11); on3.src = "/img/menu_main_info_1.gif";

  var off4 = new Image(189,11); off4.src = "/img/menu_main_tek.gif";
  var on4 = new Image(189,11); on4.src = "/img/menu_main_tek_1.gif";

  var off5 = new Image(57,10); off5.src = "/img/menu_main_jobs.gif";
  var on5 = new Image(57,10); on5.src = "/img/menu_main_jobs_1.gif";

  var off6 = new Image(21,10); off6.src = "/img/menu_main_faq.gif";
  var on6 = new Image(21,10); on6.src = "/img/menu_main_faq_1.gif";

  var off33 = new Image(53,10); off33.src = "/img/menu_main_contacts.gif";
  var on33 = new Image(53,10); on33.src = "/img/menu_main_contacts_1.gif";



  var insoff1 = new Image(60,10); insoff1.src = "/img/menu_inside_company.gif";
  var inson1 = new Image(60,10); inson1.src = "/img/menu_inside_company_1.gif";

  var insoff2 = new Image(41,10); insoff2.src = "/img/menu_inside_services.gif";
  var inson2 = new Image(41,10); inson2.src = "/img/menu_inside_services_1.gif";

  var insoff3 = new Image(150,11); insoff3.src = "/img/menu_inside_info.gif";
  var inson3 = new Image(150,11); inson3.src = "/img/menu_inside_info_1.gif";

  var insoff4 = new Image(189,11); insoff4.src = "/img/menu_inside_tek.gif";
  var inson4 = new Image(189,11); inson4.src = "/img/menu_inside_tek_1.gif";

  var insoff5 = new Image(57,10); insoff5.src = "/img/menu_inside_jobs.gif";
  var inson5 = new Image(57,10); inson5.src = "/img/menu_inside_jobs_1.gif";

  var insoff6 = new Image(21,10); insoff6.src = "/img/menu_inside_faq.gif";
  var inson6 = new Image(21,10); inson6.src = "/img/menu_inside_faq_1.gif";

  var insoff33 = new Image(53,10); insoff33.src = "/img/menu_inside_contacts.gif";
  var inson33 = new Image(53,10); inson33.src = "/img/menu_inside_contacts_1.gif";
}

function change(img3Name) {
   zzz=document.getElementById('img'+img3Name);
   zzz.src=eval('on' + img3Name + '.src');
}
function release(img3Name) {
   zzz=document.getElementById('img'+img3Name);
   zzz.src=eval('off' + img3Name + '.src');
}


function inschange(img3Name) {
   zzz=document.getElementById('insimg'+img3Name);
   zzz.src=eval('inson' + img3Name + '.src');
}
function insrelease(img3Name) {
   zzz=document.getElementById('insimg'+img3Name);
   zzz.src=eval('insoff' + img3Name + '.src');
}