function showtab( tab, total )
{
	document.getElementById( "maintab" ).style.display = "none";
	document.getElementById( "mainimg" ).style.display = "none";
	i=0;
	while( i < total )
	{
		document.getElementById( "tab" + i ).style.display = "none";	
		if( document.getElementById( "img" + i ) )	
			document.getElementById( "img" + i ).style.display = "none";
		i++;
	}
	document.getElementById( "tab" + tab ).style.display = "block";
	if( document.getElementById( "img" + tab ) )	
	{
		document.getElementById( "img" + tab ).style.display = "block";
		}else{
			document.getElementById( "mainimg" ).style.display = "block";
		}
}

/*

function showTip(message, event) {
if (!event) event = window.event;
var oTip = document.getElementById('tip');
oTip.innerHTML = message;
var true_left = event.clientX + 20;
var tip_width = oTip.offsetWidth;
if (true_left + tip_width > 815) {true_left = 815 - oTip.offsetWidth;}
oTip.style.left = true_left + 'px';
oTip.style.visibility = 'visible';
}

function hideTip() {
var oTip = document.getElementById('tip');

oTip.style.visibility = 'hidden';
oTip.innerHTML = '';
}
*/

function slide(id) {
	var e = document.getElementById(id);
	
	var eLink = first(e);
	var eList = last(e);
	
	if (eList.style.display != 'block') {
		expand(eList);
		eLink.style.backgroundPosition = 'left bottom';
		setCookie('opened_' + id, 1 ,365);
	} else {
		collapse(eList);
		eLink.style.backgroundPosition = 'left top';
		setCookie('opened_' + id, 0 ,365);
	}
}

// получение первого дочернего элемента
function first(e) {
	var elem = e.firstChild;
	   
	return elem && elem.nodeType != 1 ?
			elem.nextSibling : elem;
}

// получение последнего дочернего элемента
function last(e) {
	var elem = e.lastChild;
	   
	return elem && elem.nodeType != 1 ?
			elem.previousSibling : elem;
}

function expand(e) {
	e.style.display = 'block';
}

function collapse(e) {
	e.style.display = 'none'
}


function iscroll_lt()
{
	iscroll_SI = setInterval('fn_lt();', 50);
}

function fn_lt()
{
	document.getElementById('iscroll').scrollLeft = document.getElementById('iscroll').scrollLeft + 1;
	if (document.getElementById('iscroll').scrollLeft == (document.getElementById('iscroll_img').width - 610))
	{
		clearInterval(iscroll_SI);
		clearTimeout(iscroll_ST);
		iscroll_ST = setTimeout('iscroll_rt();', 5000);
	}
}

function iscroll_rt()
{
	iscroll_SI = setInterval('fn_rt();', 50);
}

function fn_rt()
{
	document.getElementById('iscroll').scrollLeft = document.getElementById('iscroll').scrollLeft - 1;
	if (document.getElementById('iscroll').scrollLeft == 0)
	{
		clearInterval(iscroll_SI);
		clearTimeout(iscroll_ST);
		iscroll_ST = setTimeout('iscroll_lt();', 5000);
	}
}

function iscroll_init()
{
	if (document.getElementById('iscroll') && document.getElementById('iscroll_img'))
	{
		// alert('iscroll_init');
		iscroll_ST = setTimeout('iscroll_lt();', 5000);
	}
}