var Opened = false;
var Dop_opened = false;

function openmenu(menu_id, menu_razdel_id)
{
    if(Opened!=false)
     {
	    api.getElementById( Opened ).style.display= "none";
	    api.getElementById( Opened ).style.visibility= "hidden";
     };

    if(Dop_opened!=false)
     {
	    api.getElementById( 'dop1_'+Dop_opened ).style.display= "none";
	    api.getElementById( 'dop1_'+Dop_opened ).style.visibility= "hidden";
     };

    api.getElementById( menu_id ).style.display= "inline";
    api.getElementById( menu_id ).style.visibility= "visible";

    api.getElementById( 'dop1_'+menu_razdel_id ).style.display= "inline";
    api.getElementById( 'dop1_'+menu_razdel_id ).style.visibility= "visible";

    Opened = menu_id;
    Dop_opened = menu_razdel_id;

    api.getElementById( 'menu_fon' ).style.height = api.getOffsetTop( api.getElementById( 'dop_' + menu_razdel_id )) + 10;
    api.getElementById( 'menu_fon' ).style.width  = api.getOffsetLeft( api.getElementById( 'dop1_' + menu_razdel_id )) + 10;

}


function closemenu()
{
    if(Opened!=false)
     {
	    api.getElementById( Opened ).style.display= "none";
	    api.getElementById( Opened ).style.visibility= "hidden";
	 };

    if(Dop_opened!=false)
     {
	    api.getElementById( 'dop1_'+Dop_opened ).style.display= "none";
	    api.getElementById( 'dop1_'+Dop_opened ).style.visibility= "hidden";
     };

    api.getElementById( 'menu_fon' ).style.height = 10;
    api.getElementById( 'menu_fon' ).style.width = 10;
}

function show_menu(id)
{
  if(Opened!==false)
   {
		document.getElementById('cat' + Opened).style.display = 'none';
		document.getElementById('cat' + Opened).style.visibility = 'hidden';
   };

  document.getElementById('cat' + id).style.display = 'inline';
  document.getElementById('cat' + id).style.visibility = 'visible';

  Opened = id;
}

function hide_menu()
{
    if(Opened!==false)
    {
		document.getElementById('cat' + Opened).style.display = 'none';
		document.getElementById('cat' + Opened).style.visibility = 'hidden';
	};
}

function hide_menu_all()
{
  for(i=0;i<10;i++)
   {
      document.getElementById('cat' +i ).style.display="none";
      document.getElementById('cat' +i ).style.visibility="hidden";
   };
}