//Set the two dates
objToday=new Date()
var objDateTime =new Date(objToday.getFullYear(), 4, 19) //Month is 0-11 in JavaScript
if (objToday.getMonth()==4 && objToday.getDate()>19) //if Christmas has passed already
christmas.setFullYear(objDateTime.getFullYear()+1) //calculate next year's Christmas
//Set 1 day in milliseconds
var one_day=1000*60*60*24

//Calculate difference btw the two dates, and convert to days
var objCounter = document.getElementById("Inschrijving_Counter");
if(objCounter != null)
{
	objCounter.innerHTML = Math.ceil((objDateTime.getTime()-objToday.getTime())/(one_day));
}