function checkSelection() {
 var txt = '';
 if (window.getSelection) {
  txt = window.getSelection();
 } else if (document.getSelection) {
  txt = document.getSelection();
 } else if (document.selection) {
  txt = document.selection.createRange().text;
 }
 return txt;
}

function quote(post_id, comment_id) {

var sel=checkSelection();

if(typeof sel=='undefined'){
	sel='';
}

var file = 'http://www.frashier.de/comment_quote_ajax.php';

var h=$H({pid:comment_id,text:sel});

new Ajax.Request(file,
{
method:'post',
			parameters:h.toQueryString(),
			onSuccess:function(xh)
		{
				var resp = xh.responseText;
			
			if(resp.substr(0,5)=='error'){
			alert(_("Error")+':\n'+resp.substring(6));
		} else {
			var msg_area=$("message"+post_id);
			if(msg_area.value!='' && msg_area.value == 'Kommentar'){
				msg_area.value = "";
			} else {
				msg_area.value+="\n";
			}
			msg_area.value+=resp+"\n";
			msg_area.focus();
			new Effect.ScrollTo("postform"+post_id, {offset: -100})

		}
	}
	});
}