function pokazUkryj(idElem)
{
	el = document.getElementById(idElem);
	if(el.style.display=='none')
		el.style.display='block';
	else
		el.style.display='none';
}


function pokaz(idElem)
{
	el = document.getElementById(idElem);
	el.style.display='block';
}

function ukryj(idElem)
{
	el = document.getElementById(idElem);
	el.style.display='none';
}


function plusMinus(idElem)
{
	el = document.getElementById(idElem);
	if(el.innerHTML=='+')
		el.innerHTML='-';
	else
		el.innerHTML='+';
}

function przeslijDalej(formId, action, limit)
{
	form = document.getElementById(formId);
	if(typeof(limit) != 'undefined')
	{
		form.limit.value = limit;
	}
	form.action = action;
	form.submit();
}


// **************** funkcje do pojawiajacego menu z oferta *****************
function setOpacity(obj,op)
{
	obj.style.opacity=op;
	obj.style.MozOpacity=op;
	obj.style.KhtmlOpacity=op;
	obj.style.filter= 'alpha(opacity=' + op*100 + ')';
	if(op>0)
	{
		obj.style.visibility='visible';
	}
	else
	{
		obj.style.visibility='hidden';
	}
}

function fadeIn(id)
{
	var obj=document.getElementById(id);
	clearTimeout(obj.tid);
	var a=parseFloat(obj.style.opacity);
	var b=a+0.1;
	if(a<1)
	{
		setOpacity(obj,b);
		obj.tid=setTimeout('fadeIn(\"'+id+'\")',20);
	}
}

function fadeOut(id)
{
	var obj=document.getElementById(id);
	clearTimeout(obj.tid);
	var a=parseFloat(obj.style.opacity);
	var b=a-0.1;
	if(a>0)
	{
		setOpacity(obj,b);
		obj.tid=setTimeout('fadeOut(\"'+id+'\")',20);
	}
}

function menuMouseOver(id)
{
	var obj=document.getElementById(id);
	clearTimeout(obj.tid);
	obj.tid=setTimeout('fadeIn(\"'+id+'\")',20);
	
}

function menuMouseOut(id)
{
	var obj=document.getElementById(id);
	clearTimeout(obj.tid);
	obj.tid=setTimeout('fadeOut(\"'+id+'\")',20);
	
}


//**************** funkcje do zakladek *****************
function zmienStyl(zakId, klasaStylu)
{
	zak = document.getElementById(zakId);
	zak.className = klasaStylu;
}


//**************** funkcje do obrazkow lewego menu *****************
//imgSrcArr - tablica adresow obrazkow
function zaladujObrazki(imgIds, imgSrcArr_bANDw)
{
	for (i=0; i<imgIds.length; i++)
	{
		img = document.getElementById(imgIds[i]);
		img.src = imgSrcArr_bANDw[i];
	}
}

function aktywujPrzycisk(imgId, imgSrc)
{
	img = document.getElementById(imgId);
	img.src = imgSrc;
	img.onmouseover = null;
	img.onmouseout = null;
}


//**************** funkcje do podmieniania obrazkow *****************
function podmienObrazek(img, newImgPath)
{
	img.src = newImgPath;
}