function trim(value) {
	value = value.replace(/^\s+/,'');
	value = value.replace(/\s+$/,'');
	return value;
}

function checkComment() {
	var cmnt = trim(document.getElementById('comment').value);
	if (cmnt.length < 3) {
		alert('Typ eerst een berichtje om hier achter te laten!');
		return false;
	}
	return true;
}

function insertAtCursor(myField, myValue) {
  //IE support
  if (document.selection) {
    myField.focus();
    sel = document.selection.createRange();
    sel.text = myValue;
  }
  //MOZILLA/NETSCAPE support
  else if (myField.selectionStart || myField.selectionStart == '0') {
    var startPos = myField.selectionStart;
    var endPos = myField.selectionEnd;
    myField.value = myField.value.substring(0, startPos)
                  + myValue
                  + myField.value.substring(endPos, myField.value.length);
  } else {
    myField.value += myValue;
  }
	myField.focus();
}

function playMovie(url, title) {
	var obj = '<object type="application/x-shockwave-flash" data="' + url + '&amp;color2=0xFFFFFF&amp;color1=0xFFFFFF&amp;rel=0&amp;autoplay=1&amp;loop=0&amp;egm=0&amp;border=0&amp;fs=1&amp;showinfo=0" style="width: 425px; height:355px">';
	obj += '<param name="wmode" value="transparent" />';
	obj += '<param name="movie" value="' + url + '?color2=0xFFFFFF&amp;color1=0xFFFFFF&amp;rel=0&amp;autoplay=1&amp;loop=0&amp;egm=0&amp;border=0&amp;fs=1&amp;showinfo=0" />';
	obj += '<param name="allowfullscreen" value="true" />';
	obj += '</object>';
	document.getElementById('player_object').innerHTML = obj;
	document.getElementById('player_title').innerHTML = '<a name=\"videoplayer\"></a><h3>' + title + '</h3>';
	window.location.hash='videoplayer';
}