if ((navigator.appName.indexOf("Netscape")!=-1) && (parseInt(navigator.appVersion) >= 3)) var b="nn";
 if ((navigator.appName.indexOf("Explorer")!=-1) && (parseInt(navigator.appVersion) >= 3)) var b="ie";
 if ((navigator.appName.indexOf("Opera")!=-1) && (parseInt(navigator.appVersion) >= 3)) var b="op";

 //alert( navigator.appName );

function doLoad(text_id, addr, id) 
{
    var req = new JsHttpRequest();
    req.onreadystatechange = function() {
      if (req.readyState == 4) {
        document.getElementById(text_id).innerHTML = req.responseText;
      }  
    }

    document.getElementById(text_id).innerHTML = '<img src="./img/loader1.gif">';
    document.getElementById('TextBlock').style.display = '';

    req.open(null, addr, true);
    req.send( { q: id } );
}


var cur_id = 2;

var siteRoot = "http://ferz-stroy.com/";
//var loader = new Image( siteRoot + "/img/loader1.gif" );


function menu_click(id)
{

  //alert( siteRoot );


  var addr = siteRoot + 'index.php?section=' + id + '&view=txt';

  doLoad( 'main_text', addr, id );

  var cur = document.getElementById('m'+cur_id);

  if ( cur != null ) 
  {
    document.getElementById('m'+cur_id).className = "menu_line_a";
  }
  {
    cur_id = id;
    document.getElementById('m'+cur_id).className = "menu_line_cur";

    step = 0;
    mk_step();
  }

  return false;
}

var step = 0;
var odd = true;
var tt = new Array( 200, 100, 100, 50, 100 );

function mk_step()
{
  if (step <4)
  {
    if (odd)
      document.getElementById('m'+cur_id).className = "menu_line_cur";
    else
      document.getElementById('m'+cur_id).className = "menu_line_noover";

    odd = !odd;

    setTimeout( "mk_step()", tt[step] );
    step++;

  } else
    document.getElementById('m'+cur_id).className = "menu_line_cur";

}