function WidthLayer(hodn)
{
	var iSirka=0;

	switch (hodn)
	{
		case	'posledne_zmeny'	:	iSirka = 160;
															break;
	}
	
	return iSirka;
}

function HideLayer(o)
{
	var objekt = VezmiObjekt(o);
	objekt.style.display = "none";

	sOldLayer = '';
}

function ViewLayer(hodn)
{
	var iSirka=0;
	var iVyska=0;
	var Xm=0;
	var Ym=0;
	var RozdielRight=0;
	var RozdielBottom=0;
	var RozsahScrollLeft=0;
	var RozsahScrollTop=0;
	var Bod_X=0;
	var Bod_Y=0;

	var text='';
	
	if (sOldLayer!='') HideLayer(sOldLayer);

	var o = 'layer_help_' + hodn;
	sOldLayer = o;
	
	var objekt = VezmiObjekt(o);
	objekt.style.display = "block";

//	iSirka = objekt.offsetWidth;
	iSirka = WidthLayer(hodn);
	iVyska = objekt.offsetHeight;

	if (bNavigIE)
	{
		Xm = event.clientX;
		Ym = event.clientY;

		RozdielRight = document.body.clientWidth - Xm;
		RozdielBottom = document.body.clientHeight - Ym;
		RozsahScrollLeft = document.body.scrollLeft;
		RozsahScrollTop = document.body.scrollTop;
	
		Bod_X = RozdielRight>iSirka ? RozsahScrollLeft + Xm - iSirka/2 : RozsahScrollLeft + Xm - iSirka;
		Bod_Y = RozdielBottom>iVyska ? RozsahScrollTop + Ym - iVyska/2 : RozsahScrollTop + Ym - iVyska;
	
		objekt.style.left = Xm>iSirka ? Bod_X : RozsahScrollLeft + Xm;
		objekt.style.top = Ym>iVyska ? Bod_Y : RozsahScrollTop + Ym;
/*
		text = "--------------------------------------------------------------------------------------------\n";
		text += "iSirka:\t\t" + iSirka + "\t\t\t iVyska:\t\t" + iVyska + "\n";
		text += "Xm:\t\t" + Xm + "\t\t\t Ym:\t\t" + Ym + "\n";
		text += "clientWidth:\t" + document.body.clientWidth + "\t\t\t clientHeight:\t" + document.body.clientHeight + "\n";
		text += "RozdielRight:\t" + RozdielRight + "\t\t\t RozdielBottom:\t" + RozdielBottom + "\n";
		text += "scrollLeft:\t\t" + document.body.scrollLeft + "\t\t\t scrollTop:\t" + document.body.scrollTop + "\n";
		text += "RozsahScrollLeft:\t" + RozsahScrollLeft + "\t\t\t RozsahScrollTop:\t" + RozsahScrollTop + "\n";
		text += "Bod_X:\t\t" + Bod_X + "\t\t\t Bod_Y:\t\t" + Bod_Y + "\n";
		text += "left:\t\t" + objekt.style.left + "\t\t\t top:\t\t" + objekt.style.top + "\n";
		text += "--------------------------------------------------------------------------------------------\n";
*/
	}
	 else
	 {
		Xm = Xm_B;
		Ym = Ym_B;

		RozdielRight = window.innerWidth - Xm;
		RozdielBottom = window.innerHeight - Ym;
		RozsahScrollLeft = window.pageXOffset;
		RozsahScrollTop = window.pageYOffset;
	
		Bod_X = RozdielRight>iSirka ? RozsahScrollLeft + Xm - iSirka/2 : RozsahScrollLeft + Xm - iSirka;
		Bod_Y = RozdielBottom>iVyska ? RozsahScrollTop + Ym - iVyska/2 : RozsahScrollTop + Ym - iVyska;
	
		objekt.style.left = Xm>iSirka ? Bod_X : RozsahScrollLeft + Xm;
		objekt.style.top = Ym>iVyska ? Bod_Y : RozsahScrollTop + Ym;
/*
		text = "--------------------------------------------------------------------------------------------\n";
		text += "iSirka:\t\t" + iSirka + "\t\t\t iVyska:\t\t" + iVyska + "\n";
		text += "Xm:\t\t" + Xm + "\t\t\t Ym:\t\t" + Ym + "\n";
		text += "innerWidth:\t" + window.innerWidth + "\t\t\t innerHeight:\t" + window.innerHeight + "\n";
		text += "RozdielRight:\t" + RozdielRight + "\t\t\t RozdielBottom:\t" + RozdielBottom + "\n";
		text += "pageXOffset:\t\t" + window.pageXOffset + "\t\t\t pageYOffset:\t" + window.pageYOffset + "\n";
		text += "RozsahScrollLeft:\t" + RozsahScrollLeft + "\t\t\t RozsahScrollTop:\t" + RozsahScrollTop + "\n";
		text += "Bod_X:\t\t" + Bod_X + "\t\t\t Bod_Y:\t\t" + Bod_Y + "\n";
		text += "left:\t\t" + objekt.style.left + "\t\t\t top:\t\t" + objekt.style.top + "\n";
		text += "--------------------------------------------------------------------------------------------\n";
*/
	 }

//	confirm(text);
	
	return true;
}