function lightup(imageobject, opacity){
 if (navigator.appName.indexOf("Netscape")!=-1
  &&parseInt(navigator.appVersion)>=5)
    imageobject.style.MozOpacity=opacity/100
 else if (navigator.appName.indexOf("Microsoft")!= -1 
  &&parseInt(navigator.appVersion)>=4)
    imageobject.filters.alpha.opacity=opacity
}


function registerBanner(fileName)
{
	banners.push(fileName);
	ban1= new Image(100,25); 
 	ban1.src = fileName;
}
function RegisterBanner(id, arr, timeout)
{
	Banners[id] = arr;
	BannersTimeouts[id] = timeout;
	for (i = 0; i<arr.length; i++){
		fileName = arr[i];
		ban1= new Image(100,25); 
	 	ban1.src = fileName;
	}
}
function ShowNextBanner()
{
	if(currentBannerPos < banners.length - 1)
	{
		currentBannerPos+=1;
		blendimage('bannerdiv','bannerimg', banners[currentBannerPos], 200)
		bannerTimeout = setTimeout(ShowNextBanner, BannersTimeouts[companyId]);
	}else
	{
		if(companyId < 5)
		{
			ShowBanner(companyId+1);
		}else
		{
			ShowBanner(1);
		}
	}
	
}
function ShowBanner(c)
{
	clearTimeout(bannerTimeout);
	document.getElementById('bannButtImg'+companyId).src = banButtImgRoot + companyId + '.gif';
	banners = Banners[c];
	companyId = c;
	currentBannerPos = 0;
	document.getElementById('bannButtImg'+companyId).src = banButtImgRoot + companyId + '_inv.gif';
	blendimage('bannerdiv','bannerimg', banners[currentBannerPos], 200)

	bannerTimeout = setTimeout(ShowNextBanner, BannersTimeouts[companyId]);
	
}