function insert(){
	if (( navigator.userAgent.indexOf('Opera' ) != -1) || ( navigator.userAgent.indexOf('Netscape' ) != -1) || ( navigator.userAgent.indexOf('Firefox' ) != -1)){
		text_before = document.guestbook.text.value;
		text_after = '';
	} 
	else {
		document.guestbook.text.focus();
		var split = document.selection.createRange();
		split.collapse();
		var split_before = split.duplicate();
		var split_after = split.duplicate();
		split.moveToElementText(document.guestbook.text);
		split_before.setEndPoint('StartToStart',split);
		split_after.setEndPoint('EndToEnd',split);
		text_before = split_before.text;
		text_after = split_after.text;
		
		if(text_before == '') {
			text_before = text_after;
			text_after = '';
		}
	}
}

function smile(Zeichen) {
	insert();
	document.guestbook.text.value = text_before + Zeichen + text_after;
	document.guestbook.text.focus();
}

function popUp(foto) {
  var popUp=window.open('components/popup_picture.php?foto='+foto,'ansicht','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=800,height=600,left=0,top=0');
  popUp.focus();
}