function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari, IE7+
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer 6
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {   // Internet Explorer 5
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
} 

function getFocus(elem) {
	if ((elem.value=="") || (elem.className=="comments")) {
		elem.className = "editcomment"; elem.value = "";
	}
}

function releaseFocus(elem) {
	if ((elem.value=="") || (elem.value=="Schreibe einen Kommentar...")) {
		elem.className = "comments";
		elem.value = "Schreibe einen Kommentar...";
	}
}

function delEntry(id) {
	var xmlHttp=null;
	
	if (confirm("Eintrag entfernen?")) {
		xmlHttp=GetXmlHttpObject();
		if (xmlHttp==null)
		{
			alert ("Your browser does not support AJAX!");
			return;
		}
		xmlHttp.open("POST","fnc/comment_dbfs.php?action=del&id=" + id,false);
		xmlHttp.send(null);
	}
}


function getComments(raceId,showAll,commentId) {
	var xmlHttp=null;
	if (!raceId) raceId="0";
	if (showAll || showAll == "0") {showAll = "&showAllComments=" + showAll;} else {showAll = "";}
	if (commentId) {commentId = "&showFullComment=" + commentId;} else {commentId = "";}
	function stateChanged()
	{ 
		
		if (xmlHttp.readyState==4)
		{   
				var xmldata = xmlHttp.responseText;

			if (xmldata) {
				document.getElementById("cDiv" + raceId).innerHTML = xmldata;
			}
		}
	}

	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	{
		alert ("Your browser does not support AJAX!");
		return;
	}
	//alert("fnc/comments.php?raceid=" + raceId + showAll + commentId);

	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET","fnc/comments.php?raceid=" + raceId + showAll + commentId,true);
	xmlHttp.send(null);
}

function setComment(raceid) {
	var xmlHttp=null;
	
	if (!raceid) raceid=0;
	
	if (document.getElementById("tcomment" + raceid).className != "comments") {

		xmlHttp=GetXmlHttpObject();
		if (xmlHttp==null)
		{
			alert ("Your browser does not support AJAX!");
			return;
		}
		
		xmlHttp.open("POST","fnc/comment_dbfs.php?action=ins&text=" + encodeURI(document.getElementById("tcomment" + raceid).value) + "&raceid=" + raceid,false);
        xmlHttp.setRequestHeader("Content-Type", "text/plain;charset=UTF-8");
        xmlHttp.overrideMimeType("UTF-8");
		xmlHttp.send(null);
	}
}

function showFullComment(raceId, commentId) {
	getComments(raceId, "", commentId);
}