function ismaxlength(obj){
var mlength=obj.getAttribute? parseInt(obj.getAttribute("maxlenght")) : ""
if (obj.getAttribute && obj.value.length>mlength)
obj.value=obj.value.substring(0,mlength)
}

function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}
function validRequired(formField,fieldLabel)
{
	var result = true;
	
	if (formField.value == "")
	{
		alert('Proszę wypełnić pole "' + fieldLabel +'".');
		formField.focus();
		result = false;
	}
	return result;
}

function validCheckBox(formField,fieldLabel) {

	var result = true;
	if (formField.checked == false)
	{
		alert(fieldLabel);
		formField.focus();
		result = false;
	}
	return result;
}

function allDigits(str)
{
	return inValidCharSet(str,"0123456789");
}

function inValidCharSet(str,charset)
{
	var result = true;
	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
		{
			result = false;
			break;
		}
	return result;
}

function validEmail(formField,fieldLabel,required)
{
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;
	if (result && formField.value.length > 0 && ((formField.value.length < 3) || !isEmailAddr(formField.value)) )
	{
		alert('Proszę wprowadzić prawidłowy adres email w polu "' + fieldLabel +'" (przykład: nazwa@domena.pl).');
		formField.focus();
		result = false;
	}
  return result;
}

function validTelefon(formField,fieldLabel,required)
{
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;
 	if (result)
 	{
 		if ((!allDigits(formField.value) || formField.value.length != 9)&&(formField.value.length > 0))
 		{
 			alert('Proszę wprowadzić prawidłowy numer telefonu w polu "' + fieldLabel +'" (9 cyfr; przykład: 226507799).');
			formField.focus();		
			result = false;
		}
	} 
	return result;
}

function validWiek(formField,fieldLabel,required)
{
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;
 	if (result)
 	{ 
 		if (!allDigits(formField.value) || formField.value < 5 || formField.value > 99 || !formField.value.match("^[0-9]+$"))
 		// if ((!allDigits(formField.value) || formField.value.length != 2 || formField.value.length != 1)&&(formField.value.length > 0))
 		{
 			alert('Proszę podać prawidłowy wiek w polu "' + fieldLabel +'".');
			formField.focus();		
			result = false;
		}
	} 
	return result;
}

function validPuste(formField,fieldLabel,required)
{
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;
 	if (result)
 	{ 
 		if (formField.value.length > 0)
 		{
 			alert(fieldLabel);
			formField.focus();		
			result = false;
		}
	} 
	return result;
}

function validInt(formField,fieldLabel,required)
{
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;
 	if (result)
 	{
 		var num = parseInt(formField.value,10);
 		if (isNaN(num))
 		{
 			alert('Proszę wpisać prawidłową liczbę w polu "' + fieldLabel +'"');
			formField.focus();		
			result = false;
		}
	} 
	return result;
}

function validKod(formField,fieldLabel,required)
{
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;
 	if (result)
 	{
 		var elems = formField.value.split("-");
 		result = (elems.length == 2); // should be three components
 		if (result)
 		{
 			var month = parseInt(elems[0],10);
  			var day = parseInt(elems[1],10);
			result =  allDigits(elems[0]) && allDigits(elems[1]) && (elems[0].length == 2) && (elems[1].length == 3);
 		}
  		if (!result)
 		{
 			alert('Proszę wprowadzić prawidłową wartość w polu "' + fieldLabel +'" (przykład 00-000).');
			formField.focus();		
		}
	} 
	return result;
}