function photoPopup(theURL,winName,w,h) { 
h=100;
w=100;
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=no,noresize,status=0'
win = window.open('/photo.php?id=' + theURL,winName,settings);
		}
		function ArticleForum(form) {
			if (form.title.value == '') {
				alert('Je bent een onderwerp vergeten');
				form.title.focus();
				return false;
			} else if (form.fulltext.value == '') {
				alert('Vergeet je reactie niet te schrijven...');
				form.fulltext.focus();
				return false;
			} else  {
				return true;
			}
		
		}
		function printPopup(id) { 
		w=600;
		h=500;
		LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
		TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
		settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=no,noresize,status=no'
		win = window.open('article_print.php?id=' + id,'print',settings);
		}