function emptyvalidation(entered, alertbox)
{

with (entered)
{
if (value==null || value=="")
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
}

function digitvalidation(entered, min, max, alertbox, datatype)
{

with (entered)
{
checkvalue=parseFloat(value);
if (datatype)
{smalldatatype=datatype.toLowerCase();
if (smalldatatype.charAt(0)=="i") 
{checkvalue=parseInt(value); if (value.indexOf(".")!=-1) {checkvalue=checkvalue+1}};
}
if ((parseFloat(min)==min && value.length<min) || (parseFloat(max)==max && value.length>max) || value!=checkvalue)
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
} 


function valuevalidation(entered, min, max, alertbox, datatype)
{

with (entered)
{
checkvalue=parseFloat(value);
if (datatype)
{smalldatatype=datatype.toLowerCase();
if (smalldatatype.charAt(0)=="i") {checkvalue=parseInt(value)};
}
if ((parseFloat(min)==min && checkvalue<min) || (parseFloat(max)==max && checkvalue>max) || value!=checkvalue)
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
} 


function emailvalidation(entered, alertbox)
{
with (entered)
{
apos=value.indexOf("@"); 
dotpos=value.lastIndexOf(".");
lastpos=value.length-1;
if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2) 
{if (alertbox) {alert(alertbox);} return false;}
else {return true;}
}
}

fillRequiredFields='wypełnij wymagane pola (*)';
wrongEmailAddress='wprawdzono błędny adres e-mail';


function validateContactForm(thisform)
{
	with (thisform)
	{
	if (emptyvalidation(name,fillRequiredFields)==false) {name.focus(); return false;};
	if (emptyvalidation(email,wrongEmailAddress)==false) {email.focus(); return false;};
	if (emailvalidation(email,wrongEmailAddress)==false) {email.focus(); return false;};
	if (emptyvalidation(phone,fillRequiredFields)==false) {phone.focus(); return false;};	
	}
}


function validateNewsletterForm(thisform)
{
    with (thisform)
    { 
    	if (emailvalidation(newsletterEmail, 'błędny adres e-mail')==false) 
		{
			newsletterEmail.focus(); return false;
		};        
    }
} 


function validateWikiForm(thisform)
{
	with (thisform)
	{
	if (emptyvalidation(author,fillRequiredFields)==false) {author.focus(); return false;};
	if (emptyvalidation(email,wrongEmailAddress)==false) {email.focus(); return false;};
	if (emailvalidation(email,wrongEmailAddress)==false) {email.focus(); return false;};
	
	if (emptyvalidation(title,fillRequiredFields)==false) {title.focus(); return false;};	
	if (emptyvalidation(description,fillRequiredFields)==false) {description.focus(); return false;};	
	}
}

function validateBookingForm(thisform)
{
	with (thisform)
	{
	if (emptyvalidation(date_from,fillRequiredFields)==false) {date_from.focus(); return false;};
	if (emptyvalidation(date_to,fillRequiredFields)==false) {date_to.focus(); return false;};
	if (emptyvalidation(name,fillRequiredFields)==false) {name.focus(); return false;};
	if (emptyvalidation(last_name,fillRequiredFields)==false) {last_name.focus(); return false;};
	if (emptyvalidation(email,wrongEmailAddress)==false) {email.focus(); return false;};
	if (emailvalidation(email,wrongEmailAddress)==false) {email.focus(); return false;};
	if (emptyvalidation(phone,fillRequiredFields)==false) {phone.focus(); return false;};	
	if (emptyvalidation(street,fillRequiredFields)==false) {street.focus(); return false;};	
	if (emptyvalidation(city,fillRequiredFields)==false) {city.focus(); return false;};
	}
}


function validateDatesForm(thisform)
{
	with (thisform)
	{
	if (emptyvalidation(date_from,fillRequiredFields)==false) {date_from.focus(); return false;};
	if (emptyvalidation(date_to,fillRequiredFields)==false) {date_to.focus(); return false;};
	}
}