function zakladka(nr){
if(nr==1){
$('zak_bestsellery').className="activ";
$('zak_nowosci').className="";
$('zak_hity').className="";


Effect.Fade('intro_box_nowosci',{duration:0.8});
Effect.Fade('intro_box_hity_cenowe',{duration:0.8});

setTimeout("Effect.Appear('intro_box_bestsellery',{duration:0.8});",780);

}
else if(nr==2){
$('zak_nowosci').className="activ";
$('zak_hity').className="";
$('zak_bestsellery').className="";

Effect.Fade('intro_box_hity_cenowe',{duration:0.8});
Effect.Fade('intro_box_bestsellery',{duration:0.8});
setTimeout("Effect.Appear('intro_box_nowosci',{duration:0.8});",780);

}
else if(nr==3){
$('zak_nowosci').className="";
$('zak_hity').className="activ";
$('zak_bestsellery').className="";

Effect.Fade('intro_box_nowosci',{duration:0.8});

Effect.Fade('intro_box_bestsellery',{duration:0.8});
setTimeout("Effect.Appear('intro_box_hity_cenowe',{duration:0.8});",780);

}
}

function okno(url, width, height) {
        var win = window.open(url,"okienko",'width=' + width + ',height=' + height + ',resizable=yes,scrollbars=yes,menubar=no' );
}
function menu(id) 
{

	if ($(id).style.height=="0px") 
	{		
	new Effect.ScrollTo($(id));
	new Effect.Morph($(id), { style: 'height: 200px;',   duration: 0.4});
		
	} 
	else 
	{		
		new Effect.Morph($(id), { style: 'height: 0px;',   duration: 0.4});	
		
	}
}
function antyspam(t) {
  t.spam.value=9;
  return true;
}
function empty(elem, helperMsg){
	if(document.getElementById(elem).value.length == 0){		
		document.getElementById(elem).focus(); // set the focus to this input
		document.getElementById(elem + "v").innerHTML = helperMsg;
		return true;
	}
	document.getElementById(elem + "v").innerHTML = '';
	return false;
}

function emptyTwo(elem1, elem2, helperMsg){
	if(document.getElementById(elem1).value.length == 0 && document.getElementById(elem2).value.length == 0){
		document.getElementById(elem1 + "v").innerHTML = helperMsg;
		document.getElementById(elem1).focus(); // set the focus to this input
		return true;
	}
	document.getElementById(elem1 + "v").innerHTML = '';
	return false;
}

function lengthMinMax(elem, min, max){
	var uInput = document.getElementById(elem).value;
	if(uInput.length >= min && uInput.length <= max){
		document.getElementById(elem + "v").innerHTML = '';
		return true;
	}else{
		document.getElementById(elem + "v").innerHTML = "Pole powinno zawierać od " +min+ " do " +max+ " znaków.";
		document.getElementById(elem).focus();
		return false;
	}
}

function lengthMax(elem, max){
	var uInput = document.getElementById(elem).value;
	if(uInput.length <= max){
		document.getElementById(elem + "v").innerHTML = '';
		return true;
	}else{
		document.getElementById(elem + "v").innerHTML = "Pole powinno zawierać maksymalnie do " +max+ " znaków.";
		document.getElementById(elem).focus();
		return false;
	}
}

function emailValidator(elem, helperMsg){
	var Input = document.getElementById(elem).value;
	if(Input.length > 0) //jesliwypelnione pole mail to wtedy sprawdzamy
	{
		var Exp = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
		if(Exp.test(Input))
		{
			document.getElementById(elem + "v").innerHTML = '';
			return true;
		}else{
			document.getElementById(elem + "v").innerHTML = helperMsg;
			document.getElementById(elem).focus();
			return false;
		}
	} return false;
}

function telValidator(elem, helperMsg){
	var Input = document.getElementById(elem).value;
	if(Input.length > 0) //jesliwypelnione pole mail to wtedy sprawdzamy
	{
		var Exp = /^\+?[0-9- ]+$/;
		if(document.getElementById(elem).value.match(Exp)){
			document.getElementById(elem + "v").innerHTML = '';
			return true;
		}else{
			document.getElementById(elem + "v").innerHTML = helperMsg;
			document.getElementById(elem).focus();
			return false;
		}
	}return true;
}



function isNumeric(elem, helperMsg, idMsg){
	var numericExpression = /^[0-9]+$/;
	if(document.getElementById(elem).value.match(numericExpression)){
		return true;
	}else{
		document.getElementById(idMsg).innerHTML = helperMsg;
		document.getElementById(elem).focus();
		return false;
	}
}

function isAlphabet(elem, helperMsg, idMsg){
	var alphaExp = /^[a-zA-Z]+$/;
	if(document.getElementById(elem).value.match(alphaExp)){
		return true;
	}else{
		document.getElementById(idMsg).innerHTML = helperMsg;
		document.getElementById(elem).focus();
		return false;
	}
}

function isAlphanumeric(elem, helperMsg, idMsg){
	var alphaExp = /^[0-9a-zA-Z]+$/;
	if(document.getElementById(elem).value.match(alphaExp)){
		return true;
	}else{
		document.getElementById(idMsg).innerHTML = helperMsg;
		document.getElementById(elem).focus();
		return false;
	}
}

function wyszukiwarkaClick(ob)
{
	var tekst = $F(ob);
	$(ob).onfocus = function(){
		if(this.value == tekst) this.value = '';
	};

	$(ob).onblur = function(){
		if(this.value == '') this.value = tekst;
	};
}
function addKom(id) 
{
	if ($(id).style.display=="none") 
	{
		$(id).style.display="inline";
	   
	} 
	else 
	{
		$(id).style.display="none";
	}
}