var m_id=[0];
var m_ind=[0];
var timer_id=null;
var MenuTimeOut=1000;

var font_color = "#FFFFFF";
var background_color = "#000000";
var hover_font_color = "#6A71AF";
var hover_background_color = "#000000";

function set_over(id) {
 document.getElementById('h'+id).style.color= hover_font_color;
 document.getElementById('h'+id).style.backgroundColor= hover_background_color;
}

function setImgOffExceptingOne(id) {
  
}

function reset_over(id) { 
 if (document.getElementById('h'+id).src){
   document.getElementById('h'+id).src = help_image;
 }
 else{
  document.getElementById('h'+id).style.color= font_color;
  document.getElementById('h'+id).style.backgroundColor= background_color;
 }
}

function set_img(id, img){
  var imgObj = document.getElementById(id);
  if (imgObj != null) {
    imgObj.src = img;
  }
  //  document.write(img);
}

function m_over(m_id1,m_id2)
{
    m_rtimer();

    if (m_ind[m_id1]!=null)
        hide_ms(m_ind[m_id1]+1);

    if (m_id2!=0) {
      m_visibility(m_id2,'visible');
      m_ind[m_id2]=m_id.length;
      m_id[m_id.length]=m_id2;
    }
    
}

function m_out() {
 
    if (timer_id!=null) {
      return;
    }
    if (m_id.length==1) {
      return;
    }

    timer_id=setTimeout('m_hide()',MenuTimeOut);        
}

function m_in()
{
    m_rtimer();
}

function m_hide() {
  
  if (m_id.length>2) {
    hide_ms(m_id.length-1);
    timer_id=setTimeout('m_hide()',MenuTimeOut);
  }
  else {
    hide_ms(1);
    timer_id=null;
  }
}

function hide_ms(i) {

  var j;
  
  for(j=m_id.length-1;j>=i;j--) {
    m_ind[m_id[j]]=null;
    m_visibility(m_id[j],'hidden');
    reset_over(m_id[j]);
  }    
  m_id.length=i;
}

function m_visibility(id,visibility)
{
    if (document.getElementById)
	document.getElementById('menu'+id).style.visibility=visibility;
    else
        document.all['dropmenu'+id].style.visibility=visibility;
}

function m_rtimer()
{
    if (timer_id!=null)
    {
	clearTimeout(timer_id);
	timer_id=null;
    }
}

function m_do_hide()
{
    m_rtimer();
    m_hide();
}

document.onclick=m_do_hide;