<!-- // (C) 2006 by hoteliers.com // 
var curDate = new Date();
var hEngine = 'http://www.hoteliers.com/osEngine.php?lang=nl&ID='; 

function dInM(mon)
{ 
if (mon == 2)
{
Year = curDate.getFullYear();
if(Math.round(Year/4) == Year/4)
{
if(Math.round(Year/100) == Year/100)
{
if(Math.round(Year/400) == Year/400)
return 29;
else return 28;
}
else return 29;
}
return 28;
}
else if (mon == 4 || mon == 6 || mon == 9 || mon == 11)
{
return 30;
}
return 31;
}

function getNDay()
{
theMonth = document.hcomForm.am.options.selectedIndex;
theDay = parseInt(document.hcomForm.ad.options.selectedIndex);
if (! theMonth == 0 && ! theDay == 0)
{
dInMonth = dInM(theMonth);
if (theDay > dInMonth)
{
document.hcomForm.ad.options.selectedIndex = theDay = dInMonth;
}
newDay = theDay + 1;
newMonth = theMonth;
if (newDay > dInMonth)
{
newDay = 1;
newMonth = theMonth + 1;
if (newMonth > 12)
{
newMonth = 1;
}
}
document.hcomForm.dd.selectedIndex = newDay;
document.hcomForm.dm.selectedIndex = newMonth;
}
}


function doCheckForm()
{
am = document.hcomForm.am.options.selectedIndex; ad = document.hcomForm.ad.options.selectedIndex; dm = document.hcomForm.dm.options.selectedIndex; dd = document.hcomForm.dd.options.selectedIndex;
el = document.getElementById('content');
if (el)
{

el.innerHTML = '<iframe name="' + document.hcomForm.hTarget.value + '" src="" width="720" height="1140" frameborder="0">';
}
document.hcomForm.target = document.hcomForm.hTarget.value;
document.hcomForm.action = 'http://www.hoteliers.com/wlpEngine.php?ID=' + document.hcomForm.hotelID.value + '&lang=nl';
document.hcomForm.submit();
} 


function checkDDate()
{
theMonth = document.hcomForm.dm.options.selectedIndex;
theDay = parseInt(document.hcomForm.dd.options.selectedIndex);
dInMonth = dInM(theMonth); 
if (theDay > dInMonth)
{
document.hcomForm.dd.options.selectedIndex = theDay = dInMonth;
}
}

// --> 