currImgIdx = 0;
currentImg=null;

function showbig(oImg){
	currentImg=oImg;
	currImgIdx = parseInt(oImg.attributes['tabidx'].value);
	if(currImgIdx==imgcount) document.images['img_next'].src = "img/arrow_right_off.gif"; else document.images['img_next'].src = "img/arrow_right.gif";
	if(currImgIdx==1) document.images['img_prev'].src = "img/arrow_left_off.gif"; else document.images['img_prev'].src = "img/arrow_left.gif";
	
	document.getElementById('counter').innerHTML = currImgIdx>9?currImgIdx:'0'+currImgIdx;
	
	if(document.images['imgbig']!=null) document.images['imgbig'].src = oImg.attributes['srcbig'].value;
	document.getElementById('big').style.display = "";
	document.getElementById('prev').style.display = "none";
}

function closebig(){
	document.getElementById('big').style.display = "none";
	document.getElementById('prev').style.display = "";
	if(document.images['imgbig']!=null) document.images['imgbig'].src = "img/fon.gif";
}

function closevideo(){
	document.getElementById('big').style.display = "none";
	document.getElementById('prev').style.display = "";
}


function skip(dir){
	if(currImgIdx+dir>imgcount ||currImgIdx+dir<=0) return;
	if(document.images['imgbig']!=null) document.images['imgbig'].src = "img/fon.gif";
	showbig(document.images['img_'+(currImgIdx+dir)]);
}