// ####################################################
// ----------------------------------------------------
// JavaScript Document
// jMenu Class
// licence - GNU GPL 2.0
// programing - Martin.Chudoba
// email - martin.chudoba@seznam.cz
// ----------------------------------------------------
// ####################################################

var l_timer = null;
var l_timer_anim = null;
var l_prvek = null;
var l_opacity = 0.0;
var l_prvek_height = 0;
var l_anim_height = 0;
var l_anim_type = 'lightning'; //else 'scroll'

function jMenuInit(xmenu, id)
{
	if(document.getElementById)
	{
		l_opacity = 0.0;
		l_anim_height = 0;

		isEnabledSub();
		allHide(xmenu);
		var browName = navigator.appName;
		var menu = document.getElementById('menu');
		
		var y = 104;//menu.style.height+menu.style.padding-top;
		if (browName == "Microsoft Internet Explorer")
		{
			var objBody = document.getElementsByTagName("body").item(0);
			var x = id.offsetLeft.toString()-10;//((objBody.offsetWidth-900)/2);//+id.offsetLeft-100;
		}
		else
			var x = id.offsetLeft.toString();
		
		//animace
		//----------------------------------------
		var prvek = document.getElementById(xmenu);
		if (prvek.style.display != 'block')
		{
			if (l_anim_type == 'lightning')
			{
				prvek.style.opacity = ".0";
				//prvek.style.opacity = l_opacity;
				if (browName == "Microsoft Internet Explorer")
				{
					prvek.style.filter = "alpha(opacity="+l_opacity+")";
				}
				prvek.style.display = 'block';
			}
			else if (l_anim_type == 'scroll')
			{
				prvek.style.display = 'block';
				prvek.style.height = "auto";
				l_prvek_height = prvek.clientHeight;
				l_prvek_height = l_prvek_height - 17;
				l_prvek_height = l_prvek_height.toString();
				prvek.style.height = 0;
			}

			//konec animace
			//----------------------------------------
	
			if (browName == "Microsoft Internet Explorer")
			{
				prvek.style.left = x;
				prvek.style.top = y;
			}
			else
			{
				prvek.style.left = x-10+"px";
				prvek.style.top = y+"px";
			}
			if (browName == "Opera")
				l_timer_anim=setTimeout(function() { Animate(prvek); },40);
			else
				l_timer_anim=setTimeout(function() { Animate(prvek); },1);
		}
	}
}
function jMenuStop(xmenu)
{
	if(document.getElementById)
	{
		l_prvek = document.getElementById(xmenu);
		l_timer=setTimeout("jHideMenu();",50);
	}
}
function jHideMenu()
{
	var menu = document.getElementById('menu');
	
	var x = menu.scrollLeft;
	var y = 60;//menu.scrollHeight+menu.style.padding-top;
	l_prvek.style.display = 'none';
	l_prvek.style.x = x;
	l_prvek.style.top = y;
	l_opacity = 0.0;
	l_anim_height = 0;
}

function allHide(xmenu)
{
	for (i = 0; i < l_pole.length; i++)
	{
		var menu = document.getElementById('menu');
		l_prvek = document.getElementById(l_pole[i]);
		
		if (xmenu == l_pole[i])
		{
			continue;
		}
		
		var x = menu.scrollLeft;
		var y = 60;//menu.scrollHeight+menu.style.padding-top;
		if (!l_prvek)break;
		l_prvek.style.display = 'none';
		l_prvek.style.x = x;
		l_prvek.style.top = y;
		l_opacity = 0.0;
		l_anim_height = 0;
	}
}

function isEnabledSub()
{
	clearTimeout(l_timer);
	l_timer = null;
}
function Animate(a_prvek)
{
	var browName = navigator.appName;
	
    if (l_anim_type == 'lightning')
    {
		if (browName == "Opera")
			l_opacity = l_opacity + 0.1;
		else
	    	l_opacity = l_opacity + 0.03;
		var myStr = l_opacity.toString();
		myStr = myStr.replace("0", "");
		a_prvek.style.opacity = myStr;
		
		if (browName == "Microsoft Internet Explorer")
		{
			var l_opacity2 = l_opacity*100;
			a_prvek.style.filter = "alpha(opacity="+l_opacity2+")";
		}    
    	if (a_prvek.style.opacity >= 1.0)
    	{
    		clearTimeout(l_timer_anim);
			l_timer_anim = null;
    	}
    	else
		{
			if (browName == "Opera")
				l_timer_anim=setTimeout(function() { Animate(a_prvek); },40);
			else
	    		l_timer_anim=setTimeout(function() { Animate(a_prvek); },1);
		}
    }
    else if (l_anim_type == 'scroll')
    {
     	l_anim_height = l_anim_height + 2.4;
    
    	if (l_anim_height > l_prvek_height)
    		a_prvek.style.height = "auto";
    	else
    		a_prvek.style.height = l_anim_height+"px";
    
    	if (l_anim_height >= l_prvek_height)
    	{
    		a_prvek.style.height = "auto";
    		clearTimeout(l_timer_anim);
			l_timer_anim = null;
    	}
    	else
    		l_timer_anim=setTimeout(function() { Animate(a_prvek); },1);
    }
}