function popUp(url, width, height) {
	day = new Date();
	id = day.getTime();
	self.open(url, id, 'scrollbars=no, status=0, menu=0, toolbar=0, resizable=no, copyhistory=0, width=' + width + ', height=' + height);
}

function insertSmiley(text) {
	
  var txtarea = document.gastenboek.bericht;
  
  if (txtarea.createTextRange && txtarea.caretPos) {
  
    var caretPos = txtarea.caretPos;
    caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? caretPos.text + text + ' ' : caretPos.text + text;
    txtarea.focus();
  
  } else {
  
    txtarea.value  += text;
    txtarea.focus();
  
  }
  
}