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

function antyspam(t){
	t.spam.value=9;
}

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 = /^[0-9a-z_.-]+@([0-9a-z-]+\.)+[a-z]{2,6}$/;
		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 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 madeSelection(elem, helperMsg, idMsg){
	if(document.getElementById(elem).value == "Please Choose"){
		document.getElementById(idMsg).innerHTML = helperMsg;
		document.getElementById(elem).focus();
		return false;
	}else{
		return true;
	}
}