var categoryids=[1,3,4,5,9,15];
var catfilenames=['clothing','4kitchens','electrical','home_furniture','sport_leisure','4children'];
var catprodids=[[4954,4385,500,1195,1479,1370,4865,1007,4070,1290,1300,954],[2270,4827,66,7,158,173,2177,9,12,34,6938,6033],[5430,52,31,36,1734,62,1739,35,46,4844,4948,6912],[1792,1797,5441,1446,1511,5466,1789,6101,6261,1576,6618,6756],[26,1381,67,1667,5243,1723,738,1844,1835,1213,488,84],[145,2236,2232,6194,6138,6380,6617,6533,6670,6595,6319,6432]];

var scroll_catidx=-1;
var scroll_prodidx=[];
var scroll_catdir=[];
var opacity;
var fadeInObj;
var fadeOutObj;

function start() {
	for(var i=0;i<categoryids.length;i++) {
		scroll_prodidx[i]=0;
		scroll_catdir[i]=0;
	}
	setTimeout('switchACategory()', 1000);
}

function switchACategory() {
	scroll_catidx=(scroll_catidx+1)%categoryids.length;
	var fromidx=scroll_prodidx[scroll_catidx];
	var toidx=(fromidx+1)%catprodids[scroll_catidx].length;
	startFade(catfilenames[scroll_catidx]+'_'+fromidx,catfilenames[scroll_catidx]+'_'+toidx);
	scroll_prodidx[scroll_catidx]=toidx;
	setTimeout('switchACategory()', 1000);
}

function startFade(fromid,toid) {
	fadeInObj=document.getElementById(toid);
	fadeOutObj=document.getElementById(fromid);
	opacity=0;
	fadeInObj.style.visibility='visible';
	stepFade();
}

function stepFade() {
	opacity+=20;
	if(isIE() || isOpera()) {
		fadeInObj.filters.alpha.opacity=opacity;
		fadeOutObj.filters.alpha.opacity=100-opacity;
	}
	if(isFirefox() || isNetscape() || isMozilla()) {
		fadeInObj.style.MozOpacity=opacity/100;
		fadeOutObj.style.MozOpacity=(100-opacity)/100;
	}
	if(opacity<100) {
		setTimeout('stepFade()', 100);
	} else {
		fadeOutObj.style.visibility='hidden';
	}
}