var OPENED_SUBMENU = "submenuid";
var ROW_COOKIE = "submenurow";

function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f

	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );


		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}
				
function Set_Cookie( name, value, expires, path, domain, secure )
{
// set time, it's in milliseconds
var today = new Date();
today.setTime( today.getTime() );

/*
if the expires variable is set, make the correct
expires time, the current script below will set
it for x number of days, to make it for hours,
delete * 24, for minutes, delete * 60 * 24
*/
if ( expires )
{
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date( today.getTime() + (expires) );

document.cookie = name + "=" +escape( value ) +
( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
( ( path ) ? ";path=" + path : "" ) +
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}

function showSubMenu(id,row,menuItemClass,selectedItemClass,sender,parentOfSender)
{
    //alert(id);
    document.getElementById('subm'+id).style.display = "block";
    highlightLinks(parentOfSender,menuItemClass);
    document.getElementById(sender).className = menuItemClass+' '+selectedItemClass;
    
    var pom = Get_Cookie(OPENED_SUBMENU);
    if (pom == null) {pom="";}
    var pom2 = Get_Cookie(ROW_COOKIE);
    if (pom2 == null) {pom2 ="";}
    pole = pom.split(',');
    //alert('id:'+id+',row:'+row+',pom:'+pom+',pom2:'+pom2);
    if (pole !=null && pole.length>0)
    {
    if (pole[pole.length-1] !=id)
    {
        //document.cookie = OPENED_SUBMENU+'=' + "subm"+id+";";
        if (pom2 == row)
        {
            pom3='';
            for (i=0;i<row;i++)
            {
                pom3 += pole[i] + ',';
            }
            for (i=row;i<pole.length;i++)
            {
                try
                {
                  document.getElementById('subm'+pole[i]).style.display = "none";
                  //highlightLinks('subm'+pole[i],menuItemClass);
                }
                catch (e) {}
            }
            pom3 += id;
            //alert("nastvuji cookie:"+pom3);
            Set_Cookie(OPENED_SUBMENU,pom3,"","","","");
            Set_Cookie(ROW_COOKIE,row,"","","","");
        }
        else
        {
            if (pom2<row)
            {
                if (pom !="") {Set_Cookie(OPENED_SUBMENU,pom+','+id,"","","","");}
                else {Set_Cookie(OPENED_SUBMENU,id,"","","","");}
                Set_Cookie(ROW_COOKIE,row,"","","","");
            }
            else
            {
                if (pom2>row)
                {
                    pom3='';
                    for (i=0;i<row;i++)
                    {
                        pom3 += pole[i] + ',';
                    }
                    for (i=row;i<pole.length;i++)
                    {
                        try
                        {
                          document.getElementById('subm'+pole[i]).style.display = "none";
                          //highlightLinks('subm'+pole[i],menuItemClass);
                        }
                        catch (e) {}
                    }
                    pom3 += id;
                    Set_Cookie(OPENED_SUBMENU,pom3,"","","","");
                    Set_Cookie(ROW_COOKIE,row,"","","","");
                } 
           }
        }
        /*alert("konec, budu cist cookies pro overeni");
        pom = Get_Cookie(OPENED_SUBMENU);
        pom2 = Get_Cookie(ROW_COOKIE);
        alert(pom+'---'+pom2);*/
    }
    }
}

function highlightLinks(id,className) 
{
   var linkList = document.getElementById(id).getElementsByTagName("li");
   for (i = 0; i < linkList.length; i++) 
   {
      linkList[i].className = className;
   }
}