// default fnction for opening popups
function openStandardPopup(url,width,height)
{
	window.open(url, "popupWindow", "width="+width+", height="+height+", scrollbars=no, toolbar=yes,left=10,top=10");
} // openStandardPopup

function openBegrippenlijst(url)
{
	window.open(url, "begrippenlijst", "width=500, height=600, scrollbars=yes, toolbar=no,left=10,top=10");
} // openStandardPopup

function openMediatheek(url)
{
	window.open(url,'mediatheek','scrollbars=no,resizable=no,status=yes,width=700,height=400, left=10,top=10');
} // openStandardPopup