var     ns  = (document.layers) ? true : false;                // ns4x
var     dom = (document.getElementById) ? true : false;        // DOM compatible browser (ie6+, ns6+, mozilla...)
var     ie  = (document.all) ? true : false;                   // ie4x

function        menuCss(id, cls)
{
  if (dom)
    {      
      var m = document.getElementById(id);
      if (m)
        m.className = cls;
    }
}

function efocus(e, v) { if (e.value == e.title) e.value = ''; }
function eblur(e, v) { if (e.value == '') e.value = e.title; }

function	changeCss(e, cls)
{
  if (dom && e)
    e.className = cls;
}

function	setBgColor(c){
  document.body.style.backgroundColor=c;
}

function	setMgColor(c){
  document.getElementById('mg').style.backgroundColor=c;
}

function        cssShow(id, v)
{
  var e = document.getElementById(id);
  if (e && e.style) {
    var s = v ? '' : 'none';
    e.style.display = s;
  }
}

function	cssShowHide(id)
{
  var e = document.getElementById(id);
  if (e && e.style) {
    e.style.display = e.style.display == '' ? 'none' : '';
  }
}

/* scroll amis zulma bb */
var scrollStep=1;

var timerTop="";
var timerBottom="";

function scrollDivTop(id){
  clearTimeout(timerBottom); 
  document.getElementById(id).scrollTop+=scrollStep;
  timerBottom=setTimeout("scrollDivTop('"+id+"')",10);
}

function scrollDivBottom(id){
  clearTimeout(timerTop);
  document.getElementById(id).scrollTop-=scrollStep;
  timerTop=setTimeout("scrollDivBottom('"+id+"')",10);
}

function stopMe(){
  clearTimeout(timerTop);
  clearTimeout(timerBottom);
}