function onload_home() {
	}
	function onload_book() {
	}
	function onload_admin() {
	}
	function onload_admin_add() {
	}	
	function onload_admin_edit() {
	}
	function onload_admin_del() {
	}	
	function onload_admin_book() {
	}	
	function onload_souhlas() {
	}	
	
var sm_ids = 0;
	
	function onload_global() {
		for( i = 1; i <= 10; i++ ) {
			if( document.getElementById('smenu'+i) ) {
				sm_ids++;
			}
		}
		
		if(document.getElementById('smenua'))
		{
			sm_min = (o_getStyle(document.getElementById('smenua'), "width"));
			//sm_min = document.getElementById('smenu1').style.width;
			sm_min = str_replace('px','', sm_min);
			sm_max += (sm_min * 1);
		}
	}

function o_getStyle(el, style) {
   if(!document.getElementById) return;
   
     var value = el.style[toCamelCase(style)];
   
    if(!value)
        if(document.defaultView)
            value = document.defaultView.
                 getComputedStyle(el, "").getPropertyValue(style);
       
        else if(el.currentStyle)
            value = el.currentStyle[toCamelCase(style)];
     
     return value;
}
function toCamelCase( sInput ) {
    var oStringList = sInput.split('-');
    if(oStringList.length == 1)   
        return oStringList[0];
    var ret = sInput.indexOf("-") == 0 ?
       oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1) : oStringList[0];
    for(var i = 1, len = oStringList.length; i < len; i++){
        var s = oStringList[i];
        ret += s.charAt(0).toUpperCase() + s.substring(1)
    }
    return ret;
}

//======================= smile =========================================

	function smile(val) {
		insertAtCaret(document.getElementById('zprava'), val);
	}
	
	function insertAtCaret(obj, text) {
		if(document.selection) {
			obj.focus();
			var orig = obj.value.replace(/\r\n/g, "\n");
			var range = document.selection.createRange();

			if(range.parentElement() != obj) {
				return false;
			}

			range.text = text;
			
			var actual = tmp = obj.value.replace(/\r\n/g, "\n");

			for(var diff = 0; diff < orig.length; diff++) {
				if(orig.charAt(diff) != actual.charAt(diff)) break;
			}

			for(var index = 0, start = 0; 
				tmp.match(text) 
					&& (tmp = tmp.replace(text, "")) 
					&& index <= diff; 
				index = start + text.length
			) {
				start = actual.indexOf(text, index);
			}
		} else if(obj.selectionStart) {
			var start = obj.selectionStart;
			var end   = obj.selectionEnd;

			obj.value = obj.value.substr(0, start) 
				+ text 
				+ obj.value.substr(end, obj.value.length);
		}
		
		if(start != null) {
			setCaretTo(obj, start + text.length);
		} else {
			obj.value += text;
		}
	}
	function setCaretTo(obj, pos) {
		if(obj.createTextRange) {
			var range = obj.createTextRange();
			range.move('character', pos);
			range.select();
		} else if(obj.selectionStart) {
			obj.focus();
			obj.setSelectionRange(pos, pos);
		}
	}

	function book(id,type) {
		document.getElementById('jmeno').value = type+':'+id;
	}

//====================== SCROLLing =========================================


	var scroll_content; 	//urcuje div se kterym se hybe
	var scroll_box;			//okno

	var scroll_contentH;	//vyska pohybliveho divu
	var scroll_window;		//vyska okna ve kterem hybeme s divem
	var scroll_moving;		//rozmezi pohybu
	
	var mouse_position;
	var scroll_activeH = 20; 	//vyska posuvniku
	var scroll_position = 0;
	var scroll_sliderH = 0;
	var scroller_offsetT;
	var scroll_boxborder = 4; 	//2px nahore, 2px dole
	var scroll_koef;
	var scroll_step = 20;		// krok posouvani kliknutim

	function onload_book() {
	
	/*
		global_in_book = true; //zapina moznost sledovani
	
		if( document.getElementById('book_box_content') && document.getElementById('book_box') && document.getElementById('iscroll_s') && document.getElementById('book') ) {
			scroll_content = document.getElementById('book_box_content')
			scroll_box = document.getElementById('book_box');
			scroll_contentH = scroll_content.offsetHeight;
			scroll_window = scroll_box.offsetHeight - scroll_boxborder;
			scroll_moving = scroll_contentH - scroll_window;

			if( scroll_contentH > scroll_window )
			{			
				document.getElementById('iscroll').style.display = 'block';
				scroll_sliderH = document.getElementById('iscroll_s').offsetHeight-40+scroll_boxborder;

				scroll_box.style.overflow = 'hidden';
				document.getElementById('book_box').style.width = (document.getElementById('book').offsetWidth - 25-scroll_boxborder) + 'px';
				
				document.getElementById('iscroll_s').style.height = (document.getElementById('iscroll').offsetHeight-40+scroll_boxborder ) + 'px';
				scroll_content.style.position = 'relative';
				scroller_offsetT = document.getElementById('iscroll_s').offsetTop;	
				
				scroll_koef = scroll_moving / (scroll_sliderH-scroll_activeH);
			}
		}
	*/
	}
	
	function iscrolling() {
		mouse_position = global_clientY-scroller_offsetT;
		
		if( global_position_able )
		{	
			scroll_position = global_clientY - scroller_offsetT;
			if( scroll_position > scroll_sliderH - scroll_activeH )
				scroll_position = scroll_sliderH - scroll_activeH;
			if( scroll_position < 0 )
				scroll_position = 0;
			iscroll_doit();
		}
	}
	function iscroll_start() {
		if( mouse_position >= scroll_position && mouse_position <= scroll_position + scroll_activeH )
			global_position_able = true;
		else
			global_position_able = false;
	}
	function iscroll_stop() {
		global_position_able = false;
	}
	function iscroll_step_u() {
		scroll_position = scroll_position - scroll_step;
		if( scroll_position < 0 )
			scroll_position = 0;
		iscroll_doit();
	}
	function iscroll_step_d() {
		scroll_position = scroll_position + scroll_step;
		if( scroll_position > scroll_sliderH - scroll_activeH )
			scroll_position = scroll_sliderH - scroll_activeH;
		iscroll_doit();
	}
	function iscroll_jump() {
		scroll_position = global_clientY - scroller_offsetT;
		if( scroll_position > scroll_sliderH - scroll_activeH )
			scroll_position = scroll_sliderH - scroll_activeH;
		if( scroll_position < 0 )
			scroll_position = 0;
		iscroll_doit();
	}
	function iscroll_doit() {
		document.getElementById('iscroll_s').style.backgroundPosition = '-40px '+scroll_position+'px';
		scroll_content.style.top = (-scroll_position*scroll_koef)+'px';
	}

	
//====================== SMALL MENU =========================================
//TODO udelat zabalovani pri najeti na jiny obrazek jednym vypocetm (odecitani robaleni od sirky ostatnich)

var sm_r = new Array(); //rozmer
var sm_s = new Array(); //smer
// var sm_ids; //pocet smenu (3)
var sm_max = 150;
var sm_min = 0;

var sm_step = 10;
var sm_time = 20;
	if( navigator.appName == 'Microsoft Internet Explorer' || true ) {
		//FUCK OFF IE
		sm_step = 150;
		sm_time = 1;
	}

function sm_show(id) {

	if(sm_s[id] != 1 ) {
		sm_s[id] = 1;
		if( !( sm_r[id] > 1 ))
			sm_r[id] = sm_min;
		sm_showing(id);
		
		for(a = 1; a <= sm_ids; a++) {
			if( a != id )
				sm_hide(a);
		}
	}
}
function sm_hide(id) {

	if(sm_s[id] == 1) {
		sm_s[id] = 0;
		sm_hideing(id);
	}
}
function sm_showing(id) {
	sm_r[id] += sm_step;
	if( sm_r[id] > sm_max ) {
		sm_r[id] = sm_max;
	}
	obj = document.getElementById('smenu'+id).style.width = sm_r[id]+'px';
	if( sm_s[id] == 1 && sm_r[id] < sm_max )
		window.setTimeout('sm_showing(\''+id+'\')', sm_time);
}


function sm_hideing(id) {
	sm_r[id] -= (sm_step*1);
		
	if( sm_r[id] < sm_min ) {
		sm_r[id] = sm_min;
	}

	obj = document.getElementById('smenu'+id).style.width = sm_r[id]+'px';
	if( sm_s[id] == 0 && sm_r[id] > sm_min )
		window.setTimeout('sm_hideing(\''+id+'\')', sm_time);

}



//====================== INFO - zmena kategorie obsahu =========================================

	var info_height = new Array();
	var info_size;
	var info_size_step;
	var info_size_steporig = 10;
	var info_size_increase = 2;
	var info_action = 0;
	var info_stat = 0;
	var info_time = 20;
	var info_interval;

	if( navigator.appName == 'Microsoft Internet Explorer' ) {
		//FUCK OFF IE
		info_size_steporig = 15;
		info_size_increase = 8;
		info_time = 50;
	}

	function onload_info() {
		if( document.getElementById('content_box') )
		{
			origCont = document.getElementById('content_box').innerHTML;
		
		
			for(i=0; i<=30; i++) {
				if( document.getElementById('cont-'+i) ) {
					document.getElementById('content_box').innerHTML = document.getElementById('cont-'+i).innerHTML;
					info_height[i] = document.getElementById('content_box').offsetHeight - 5; //5 = 1border nahore, 4 border dole
				}	
			}
			document.getElementById('content_box').innerHTML = origCont;
		}
	}

	function switchText(num,foto) {
		if(foto != 'x' )
			photopoint(foto);
	
		if(info_action == 0 )
		{
			if( info_stat == 0 )
			{
				info_action = 1;
				info_stat = 1;
				info_size = document.getElementById('content_box').offsetHeight;
				info_size_step = info_size_steporig;
				info_interval = window.setInterval('switchTextLoop('+num+')',info_time);
			}
		}
		else
			return;
	}
	
	function switchTextLoop(num) {
		if(info_stat == 1 && info_size >= 0)
		{
			switchTextTitle(num);
		
			info_size -= info_size_step;
			info_size_step += info_size_increase;
			
			if(info_size <= 0)
			{
				info_size = 0;
				info_stat = 2;
				info_size_step = info_size_steporig;
				document.getElementById('content_box').innerHTML = document.getElementById('cont-'+num).innerHTML;
			}	
			document.getElementById('content_box').style.height = info_size + 'px';
		}
		else if( info_stat == 2 && info_size <= info_height[num] )
		{
			info_size += info_size_step;
			info_size_step += info_size_increase;
			
			if( info_size >= info_height[num] )
			{
				info_size = info_height[num];
				clearInterval(info_interval);
				info_stat = 0;
				info_action = 0;
			}
			document.getElementById('content_box').style.height = info_size + 'px';
		}
		else
		{
			clearInterval(info_interval);
		}
	}

	function switchTextTitle(num) {
		for(i=0;i<=30;i++) {
			if( document.getElementById('content_title_'+i) )
				document.getElementById('content_title_'+i).className = '';
		}
		document.getElementById('content_title_'+num).className = 'active';
	}


//========================== INFO - zmena obrazku ======================================

	function photopoint(num) {
		for( a = 0; a <= 30; a++ )
		{
			if( document.getElementById('photopoint_'+a) )
				document.getElementById('photopoint_'+a).className = 'photopoint';
		}
		
		if( document.getElementById('photopoint_'+num) )
			document.getElementById('photopoint_'+num).className = 'photopoint_a';
		
		if( document.getElementById('photo') )
		{
			path = document.getElementById('photo').src;
			mask = '_.+\.jpg$';
		
			if (path.match(mask))				//zmenit cislo (mezi podtrzkou a priponou)
			{
				var re = new RegExp(mask, "g");
				path2 = path.replace(re, '_'+num+'.jpg');

				document.getElementById('photo').src = path2;
			}
		}
	}
	
	
//========================== GALERIE - show ==========================================
	var prev_count2;
	var canvas_opened = true;
	var invisible_interval;
	var invisible_value;
	var invisible_able = true;
	var invisible_timeout = false;

	function canvas_invisible_control() {
	
		invisible_value -= 10;
		opacity('ovladani',invisible_value);
		
		if(invisible_value < 0 )
			clearInterval(invisible_interval);
	
	}
	
	function canvas_invisible_timeout() {
		invisible_able = false;
		invisible_value = 100;
		invisible_interval = setInterval('canvas_invisible_control()',50);
	}
	
	
	function canvas_show(id) {
		if( document.getElementById('canvas_div') )
		{
			canvas_opened = true;
			
			if( invisible_able && document.getElementById('ovladani') )
				opacity('ovladani',100);

			document.getElementById('image').style.display = 'none';
		
			document.getElementById('canvas_div').style.display = 'block';
		
			data = my_explode('ę', str_replace('‼','"', document.getElementById('prev_'+id+'_i').alt));
			document.getElementById('c_image').style.marginTop = (450 - data[9]) /2 + 'px';
			
			document.getElementById('c_image').style.width = data[8];
			document.getElementById('c_image').style.height = data[9];
			
			document.getElementById('c_image').src = data[1];
			
			
			document.getElementById('image').style.display = 'inline';
			
			
			if( data[2] == '' )
				document.getElementById('c_nadpis').style.display = 'none';
			else {
				document.getElementById('c_nadpis').style.display = 'block';
				document.getElementById('c_nadpis').innerHTML = data[2];
			}
			document.getElementById('c_image').alt = data[2];
			
			document.getElementById('popis').innerHTML = data[3];
			
			if(data[4] == '' || data[5] == '' ) {
				document.getElementById('rozmer').style.visibility = 'hidden';
			}
			else {
				document.getElementById('rozmer').style.visibility = 'visible';

				document.getElementById('rozmer_x').innerHTML = data[4];
				document.getElementById('rozmer_y').innerHTML = data[5];
				
				document.getElementById('rozmer_x').style.padding = document.getElementById('rozmer_y').style.padding = '0px';
				rozdil = document.getElementById('rozmer_x').offsetWidth - document.getElementById('rozmer_y').offsetWidth;
				if( rozdil > 0 ) //x je vetsi
					document.getElementById('rozmer_y').style.paddingLeft = rozdil +'px';
				else if (rozdil < 0 ) //y je vetsi
				{
					document.getElementById('rozmer_x').style.paddingLeft = (rozdil * -1) +'px';
				}
			}
			document.getElementById('cena').innerHTML = data[6];
			
			document.getElementById('now').innerHTML = id;
			document.getElementById('total').innerHTML = prev_count2;
			
			if( navigator.appName == 'Microsoft Internet Explorer' ) {
				document.getElementById('navig').style.display = 'none';
				document.getElementById('navig').style.display = 'block';
			}
			
			next1 = id + 1;
			if( next1 > prev_count2)
				next1 = 1;
				
			next2 = my_explode('ę', document.getElementById('prev_'+next1+'_i').alt);
			preload_images(next2[1]);
			
			prev1 = id - 1;
			if( prev1 <= 0 )
				prev1 = prev_count2;
			//prev2 = my_explode('ę', document.getElementById('prev_'+prev1+'_i').alt);
			//alert(prev + ' - ' + next);
			
			if( invisible_able && document.getElementById('ovladani') )
				invisible_timeout = setTimeout('canvas_invisible_timeout()',2000);
				
		}
	}
	
	var preloaded = new Array();
	function preload_images() {
		for (var i = 0; i < arguments.length; i++){
			preloaded[i] = document.createElement('img');
			preloaded[i].setAttribute('src',arguments[i]);
		}
	}
/*
			preload_images(
				'/css/cssimg/item_listing/vli_top.gif',
				'/css/cssimg/item_listing/vli_bottom.gif',
				'/css/cssimg/item_listing/vli_active_top.gif',
				'/css/cssimg/item_listing/vli_active_bottom.gif',
				'/css/cssimg/main_layout/plasma_box_gallery_top_demon.gif'
			);
*/
	function canvas_next() {
		if( presentation ) {
			canvas_autos();
			canvas_auto();
		}
		canvas_show(next1);
	}
	function canvas_prev() {
		if( presentation ) {
			canvas_autos();
			canvas_auto();
		}
		canvas_show(prev1);
	}
	function canvas_hide() {
		if( canvas_opened )	{
			canvas_opened = false;
			invisible_able = true;
			
			if( invisible_timeout )
				clearTimeout(invisible_timeout);
			
			if( presentation )
				canvas_autos();
			document.getElementById('canvas_div').style.display = 'none';
		}
	}
	
	var canvas_timeri;
	var presentation_interval = 2000;
	var presentation_timer = presentation_interval;
	var presentation_speed = 100;
	var presentation = false;
	
	function canvas_auto() {
	
		if( document.getElementById('timer') && document.getElementById('timeline') && document.getElementById('auto') && document.getElementById('autos') ) {
			document.getElementById('timer').style.width = '100%';
		
			document.getElementById('auto').style.display = 'none';
			document.getElementById('autos').style.display = 'block';
			document.getElementById('timeline').style.visibility = 'visible';
			presentation = true;
			presentation_timer = presentation_interval;
			canvas_timeri = window.setInterval('canvas_timer()', presentation_speed);
		}
	}
	function canvas_autos() {
		clearInterval(canvas_timeri);
		document.getElementById('autos').style.display = 'none';
		document.getElementById('auto').style.display = 'block';
		document.getElementById('timeline').style.visibility = 'hidden';
		presentation = false;
	}
	function canvas_timer() {
		
		if(presentation_timer > 0 ) {
			presentation_timer -= presentation_speed;

			step = presentation_interval / presentation_speed;
			document.getElementById('timer').style.width = presentation_timer/step +'%';
			
			if( navigator.appName == 'Microsoft Internet Explorer' ) {
				document.getElementById('navig').style.display = 'none';
				document.getElementById('navig').style.display = 'block';
			}
		}
		else {
			presentation_timer = presentation_interval;
			canvas_next();
		}
	}



var keypressed = false;

	function keypress(e) {
	
		if(navigator.userAgent.indexOf("Opera") >-1 )
			e = event.keyCode;

		if( keypressed == false ) {
			keypressed = true;

			if( document.getElementById('canvas_div').style.display == 'block' && canvas_opened ) {
				if(e == 37)
					canvas_prev();
				else if(e == 39)
					canvas_next();
				else if(e == 27)
					canvas_hide();
				else if(e == 32) {
					if( presentation )
						canvas_autos();
					else
						canvas_auto();
				}
			}
		}
	}







//========================== GALERIE - posun ====================================

	function my_offsetPosition(obj) {				//zjisteni pozice prvku vzhledem k oknu dokumentu
		
		var curleft = curtop = 0;
		
		if (obj.offsetParent) {
		do {
				curleft += obj.offsetLeft;
				curtop += obj.offsetTop;
			} while (obj = obj.offsetParent);
		}	
		return [curleft,curtop];
	}

	
	var global_in_gallery = false;
	var gal_scroll_able = false;
	
	var gal_scroll_previews_count = 0;						//pocet nahledu na strance - pro pocitani radku
	var gal_scroll_previews_on_row = 5;						//konst - kolik nahledu se vejde na radek
	var gal_scroll_row_height = 164;						//konst - vyska radku (pro animaci)
	var gal_scroll_rows;									//kolik radku je pouzito pro nahledy
	
	var gal_scroll_maxride;					//283			//urcuje rozsah posuvniku
	var gal_scroll_rozdilscrollu;			//117, 281		//urcuje, o kolik se okno s obsahem bude rolovat
	var gal_scroll_koef;					//0,4	0,9		//pomer mezi obsahem a posuvnikem

	var gal_scroll_vyskascrolleru = 0;
	var gal_scroll_waytop;
	
	var gal_scroll_howmuch = 0;								//aktualni posunuti (pro predavani mezi vsemi 3 moznostmi posunu)

	function onload_book () {
		gal_scroll_howmuch = 0;								//fix FF
		gal_inbook = true;
		
		if( document.getElementById('preview_area') && document.getElementById('preview_area_cont') && document.getElementById('gal_scroller') && document.getElementById('gal_way') ) {

			global_in_gallery = true;

			document.getElementById('preview_area').scrollTop = gal_scroll_howmuch;			//hazi obsah nahoru (FF si pamatuje a po reloadu necha posunute)
			
			gal_scroll_rozdilscrollu = document.getElementById('preview_area').scrollHeight - document.getElementById('preview_area').offsetHeight;
				
			gal_scroll_vyskascrolleru = document.getElementById('gal_scroller').offsetHeight;
			gal_scroll_maxride = document.getElementById('gal_way').offsetHeight - gal_scroll_vyskascrolleru;
			gal_scroll_koef = gal_scroll_rozdilscrollu / gal_scroll_maxride;
				
			gal_scroll_waytop = my_offsetPosition(document.getElementById('gal_way'));
			gal_scroll_waytop = gal_scroll_waytop[1];


			if( gal_scroll_rozdilscrollu <= 0 ) {
				document.getElementById('book_scrollbar').style.display = 'none';
			}
			else
				document.getElementById('preview_area_cont').style.marginRight = '10px';

			//document.getElementById('book_scrollbar').style.display = 'none';
		}
		else
			alert('Error #2545');
	}
	
	function onload_gallery () {
		gal_scroll_howmuch = 0;								//fix FF
		
		if( document.getElementById('preview_area') && document.getElementById('preview_area_cont') && document.getElementById('gal_scroller') && document.getElementById('gal_way') ) {
		

			gal_scroll_previews_count = document.getElementById('preview_area_cont').getElementsByTagName('a');		gal_scroll_previews_count = gal_scroll_previews_count.length;
			prev_count2 = gal_scroll_previews_count;

			gal_scroll_rows = Math.ceil(gal_scroll_previews_count / gal_scroll_previews_on_row);
			//alert(gal_scroll_rows);
			
			if( gal_scroll_rows > 2 ) {
			
				global_in_gallery = true;

				document.getElementById('preview_area').scrollTop = gal_scroll_howmuch;			//hazi obsah nahoru (FF si pamatuje a po reloadu necha posunute)
				document.getElementById('preview_area_cont').style.height = (gal_scroll_rows * gal_scroll_row_height)+47 +'px';
				
				gal_scroll_rozdilscrollu = document.getElementById('preview_area').scrollHeight - document.getElementById('preview_area').offsetHeight;
				
				gal_scroll_vyskascrolleru = document.getElementById('gal_scroller').offsetHeight;
				gal_scroll_maxride = document.getElementById('gal_way').offsetHeight - gal_scroll_vyskascrolleru;
				gal_scroll_koef = gal_scroll_rozdilscrollu / gal_scroll_maxride;
				
				
				gal_scroll_waytop = my_offsetPosition(document.getElementById('gal_way'));
				gal_scroll_waytop = gal_scroll_waytop[1];
			}
			else
				document.getElementById('gal_scrollbar').style.display = 'none';
		}
		else
			alert('Error #2544');
	}

	function gal_rollerpress() {					//pri stisku LMB nad rollerem
		gal_scroll_able = true;
	}

	function gal_scroll_set() {
		document.getElementById('preview_area').scrollTop = gal_scroll_howmuch * gal_scroll_koef;
		gal_scroll_barier();
		document.getElementById('gal_scroller').style.top = gal_scroll_howmuch + 'px';
		gal_scroll_arrows();
	}
	
	function gal_scrolling() {						//posouva rollerem v pomeru ke scrollovanemu obsahu
		gal_scroll_howmuch = document.getElementById('preview_area').scrollTop / gal_scroll_koef;
		
		gal_scroll_barier();
		
		document.getElementById('gal_scroller').style.top = gal_scroll_howmuch + 'px';
		gal_scroll_arrows();
	}	
		function gal_scroll_arrows() {
			if(gal_scroll_howmuch > 0) {
				document.getElementById('gal_scroll_up_d').style.display = 'none';
				document.getElementById('gal_scroll_up').style.display = 'block';
			}
			else {
				document.getElementById('gal_scroll_up_d').style.display = 'block';
				document.getElementById('gal_scroll_up').style.display = 'none';
			}
			
			if( gal_scroll_howmuch < gal_scroll_maxride ) {
				document.getElementById('gal_scroll_down_d').style.display = 'none';
				document.getElementById('gal_scroll_down').style.display = 'block';
			}
			else {
				document.getElementById('gal_scroll_down_d').style.display = 'block';
				document.getElementById('gal_scroll_down').style.display = 'none';
			}
			//window.status = gal_scroll_howmuch;
		}
		function gal_scroll_arrows_d() {
			document.getElementById('gal_scroll_up_d').style.display = 'block';
			document.getElementById('gal_scroll_up').style.display = 'none';
			document.getElementById('gal_scroll_down_d').style.display = 'block';
			document.getElementById('gal_scroll_down').style.display = 'none';	
		}
	
	function gal_jump(obj) {						//jump pri kliku na WAY
		gal_scroll_howmuch = (global_clientY - gal_scroll_waytop) - (gal_scroll_vyskascrolleru/2);
		gal_scroll_barier();
		gal_scroll_set();
	}
	
	function gal_scroll_barier() {
		if( gal_scroll_howmuch < 0 )						//horni a dolni bariera (min/max)
			gal_scroll_howmuch = 0;
		if( gal_scroll_howmuch > gal_scroll_maxride )
			gal_scroll_howmuch = gal_scroll_maxride;
	}
	
	function gal_scroll_moving() {					//neustale sledovani Y pozice kurzoru (mousemove)
		if( gal_scroll_able ) {						//pokud jsme stiskli nad rollerem
			gal_scroll_howmuch = (global_clientY - gal_scroll_waytop) - (gal_scroll_vyskascrolleru/2);
			gal_scroll_barier();
			gal_scroll_set();
		}
	}


	var gal_scrolling_able = false;					//drzime mys - pousova se
	var gal_scrolling_step = 5;						//krok, o kolik se posune za interval
	var gal_scrolling_timing = 50;
	var gal_scrolling_interval;
	
	
	function gal_downing() {
		if(!gal_scrolling_able) {
			gal_scrolling_able = true;
			gal_scrolling_interval = setInterval('gal_scrolling_anim(true)', gal_scrolling_timing);
		}
	}
	function gal_uping() {
		if(!gal_scrolling_able) {
			gal_scrolling_able = true;
			gal_scrolling_interval = setInterval('gal_scrolling_anim(false)', gal_scrolling_timing);
		}
	}

	function gal_scrolling_anim(direct) {
		if(gal_scrolling_able) {
		
			if( direct ) {								//dolu
				document.getElementById('preview_area').scrollTop += gal_scrolling_step;
				if( document.getElementById('preview_area').scrollTop <= 0 )
					clearInterval(gal_scrolling_interval);
			}
			else {										//nahoru
				document.getElementById('preview_area').scrollTop -= gal_scrolling_step;
				if( document.getElementById('preview_area').scrollTop >= document.getElementById('preview_area').scrollHeight )
					clearInterval(gal_scrolling_interval);
			}
		}
		else
			clearInterval(gal_scrolling_interval);
	}



	var gal_scroll_goto;							//cilova pozice, kam se ma doanimovat
	var gal_scroll_interval;
	var gal_scroll_timing = 50;
	var gal_scroll_anim_speed_orig = 20;
	var gal_scroll_anim_speed_step = 1;
	var gal_scroll_anim_speed;
	var gal_scroll_positon;
	
	var gal_scroll_allow = true;
	

	function gal_up() {
		gal_direct(false);
	}
	function gal_down() {
		gal_direct(true);
	}
	function gal_direct(direct) {
		if( gal_scroll_allow ) {
			gal_scroll_allow = false;
			document.getElementById('gal_scroll_up').style.cursor = 'not-allowed';
			document.getElementById('gal_scroll_down').style.cursor = 'not-allowed';

			gal_scroll_anim_speed = gal_scroll_anim_speed_orig;									//vyresetujeme rychlost
			
			if( direct) {
				var a = Math.floor(document.getElementById('preview_area').scrollTop / gal_scroll_row_height);
				gal_scroll_goto = (a+1) * gal_scroll_row_height;
				gal_scroll_interval = setInterval('gal_anim(1)', gal_scroll_timing);
			}
			else {
				var a = Math.ceil(document.getElementById('preview_area').scrollTop / gal_scroll_row_height);
				gal_scroll_goto = (a-1) * gal_scroll_row_height;
				gal_scroll_interval = setInterval('gal_anim(0)', gal_scroll_timing);
			}
			
		}	
	}
	
	function gal_anim(direct) {
	
		if( direct )																				//smer dolu
			gal_scroll_positon = document.getElementById('preview_area').scrollTop + gal_scroll_anim_speed;
		else
			gal_scroll_positon = document.getElementById('preview_area').scrollTop - gal_scroll_anim_speed;

		gal_scroll_anim_speed -= gal_scroll_anim_speed_step;										//snizime rychlost
		if( gal_scroll_anim_speed <= 2 )
			gal_scroll_anim_speed = 2;
			
		if( (direct && gal_scroll_positon >= gal_scroll_goto) || (!direct && gal_scroll_positon <= gal_scroll_goto) ) {			//podminka pro oba smery
			gal_scroll_positon = gal_scroll_goto;
			clearInterval(gal_scroll_interval);
			gal_scroll_allow = true;
			document.getElementById('gal_scroll_up').style.cursor = 'hand';
			document.getElementById('gal_scroll_down').style.cursor = 'hand';
			document.getElementById('gal_scroll_up').style.cursor = 'pointer';
			document.getElementById('gal_scroll_down').style.cursor = 'pointer';
		}	

		document.getElementById('preview_area').scrollTop = gal_scroll_positon;
	}


//========================= GALERIE - previews ===========================

var gal_prev_prev_r = new Array(); //rozmer
var gal_prev_prev_s = new Array(); //smer
var gal_prev_max = 98;
var gal_prev_min = 78;
var gal_prev_step = 2;
var gal_prev_time = 30;

	if( navigator.appName == 'Microsoft Internet Explorer' ) {
		//FUCK OFF IE
		gal_prev_step = 6;
		gal_prev_time = 50;
	}

function preview(id) {
	if(gal_prev_prev_s[id] != 1 ) {
		gal_prev_prev_s[id] = 1;
		if( !( gal_prev_prev_r[id] > 1 ))
			gal_prev_prev_r[id] = gal_prev_min;
		previewResizeUp(id);
	}
}

function previewx(id) {
	if(gal_prev_prev_s[id] == 1) {
		gal_prev_prev_s[id] = 0;
		previewResizeDown(id);
	}
}

function previewResizeUp(id) {
	gal_prev_prev_r[id] += gal_prev_step;
		
	if( gal_prev_prev_r[id] >= gal_prev_max ) {
		gal_prev_prev_r[id] = gal_prev_max;
	}

	obj = document.getElementById(id).style;
	obj.width = obj.height = gal_prev_prev_r[id]+'px';
	obj.margin = ( 128-gal_prev_prev_r[id] )/2 +'px';
	
	if( gal_prev_prev_s[id] == 1 )
		window.setTimeout('previewResizeUp(\''+id+'\')', gal_prev_time);
}
function previewResizeDown(id) {
	gal_prev_prev_r[id] -= gal_prev_step;
		
	if( gal_prev_prev_r[id] <= gal_prev_min ) {
		gal_prev_prev_r[id] = gal_prev_min;
	}

	obj = document.getElementById(id).style;
	obj.width = obj.height = gal_prev_prev_r[id]+'px';
	obj.margin = ( 128-gal_prev_prev_r[id] )/2 +'px';
	
	if( gal_prev_prev_s[id] == 0 )
		window.setTimeout('previewResizeDown(\''+id+'\')', gal_prev_time);
}


//====================================================
	var nahledOpacity = 100;
	var nahledObrazek = 1;
	var nahledWhite = true;
		
	var nahledPerioda = 4000;
	var nahledMin = 60;
	var nahledKroku = 10;
	var nahledStep = (100-nahledMin)/nahledKroku;
	
	
	function blik()
	{
		nahledBlik();
		window.setTimeout('blik()',nahledPerioda);
	}
		
	function nahledBlik()
	{
		if(nahledWhite == true)
		{
			nahledOpacity -= nahledStep;
			opacity('menu'+nahledObrazek,nahledOpacity);
				
			if( nahledOpacity == nahledMin )
			{
				nahledWhite = false;
			}
		}
		else
		{
			nahledOpacity += nahledStep;
			opacity('menu'+nahledObrazek,nahledOpacity);
				
			if( nahledOpacity == 100 )
			{
				nahledWhite = true;
				nahledObrazek += 1;
				if( nahledObrazek >= 4 )
				{	
					nahledObrazek = 1;
					return;
				}
			}
		}
		window.setTimeout("nahledBlik()",10);
	}