/* na vrh strani */

var b2tx=80, b2ty=80, b2th='<img src="/library/images/na_vrh.gif" width="50" height="17" border="0">';

function b2x()
{
	return ((moz) ? window.innerWidth - 20 : document.body.clientWidth) - b2tx;
}

function b2y()
{
	return ((moz) ? window.innerHeight : document.body.clientHeight) + b2o() - b2ty;
}

function b2o()
{
	return (moz) ? window.pageYOffset : document.body.scrollTop;
}

function b2t()
{
    var scrOfX = 0, scrOfY = 0;
        if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
        } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
        } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
        }
    if (scrOfY > 0)
    {
        if (document.body.clientWidth > 1000)
        {
            document.getElementById('toppage').style.display= "block";
        }
        else
        {
            if(scrOfX > 0)
            {
            document.getElementById('toppage').style.display= "block";
            }
            else
            {
            document.getElementById('toppage').style.display= "none";
            }
           
        }
    }
    else
    {
        document.getElementById('toppage').style.display= "none";
    }    
	with(document.getElementById('toppage').style)
	{
	    
		left = (((document.body.clientWidth - 1000)/2) + 835) + 'px';
		bottom = 50 + 'px';
	
	}
		setTimeout('b2t()',99);
}

var moz=(document.getElementById&&!document.all)?1:0;

document.write('<div id="toppage" style="z-index:100;position:fixed"><a href="JavaScript:scrollTo(0,0)">'+b2th+'</a></div>');

b2t();

/* na vrh strani */