var cando = false;
var browserName = navigator.appName;
var browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3) cando = true;
else if( browserVer >=4 ) cando=true;

if( cando ) {
        imag = new Array()
        imagtd = new Array()

        imag[1] = "/img/rmenu_v_1.gif"
        imag[2] = "/img/rmenu_v_0.gif"
        imag[3] = "/img/rmenu_n_1.gif"
        imag[4] = "/img/rmenu_n_0.gif"


im = new Array()
        for (var i = 0; i < imag.length; i++){
                if( imag[i] != "" ) {
                        im[i] = new Image()
                        im[i].src = imag[i]
                }
        }
}

function swtch(num1,imgname1,num2,imgname2){
        if( cando )
        document[imgname1].src = im[num1].src
        document[imgname2].src = im[num2].src
}

function swtchtd0(c){
if( cando )
 document.getElementById(c).style.background ='url(/img/rmenu_fon_1.gif)';
}
function swtchtd1(c){
if( cando )
 document.getElementById(c).style.background ='url(/img/rmenu_fon_0.gif)';
}

var cur_div = null;
function SwitchMenuDiv(id){
  var o = document.getElementById(id);
  if(o!=null){
    /*if(cur_div!=null && cur_div.id!=id){
      cur_div.style.display = 'none';
      cur_div = null;
    }*/
    o.style.display = o.style.display=='none' ? 'block' : 'none';
    if(o.style.display=='block')
      cur_div = o;
  }
}