function checkUpload (form)
{

	if (form.picture.value == "") {
		alert( "keine Datei gew\u00e4hlt!" );
		form.picture.focus();
		return false ;
	}
	else {
		form.upload.disabled=true;
		form.upload.value="Uploading...";
		return true ;
	}
}



function AddText(addtext) {
	var current = document.post.message.value;
	var newtext = current + addtext;
	document.post.message.value = newtext;
	document.post.message.focus();
}

function addNewText(addtext) {
	document.post.text.value = addtext;
}



/// fügt den [MEDIA] tag hinzu ///
function AddMedia() {

	filetype = prompt('Falls es ein YouTube Video ist gib "ja" ein - ansonsten nichts eingeben', "");

	if(filetype=="ja") inserttext = prompt("Bsp.:http://www.youtube.com/watch?v=SPilQuIrvZo" + "\n(in dem Fall das hier eingeben: SPilQuIrvZo)", "");
	else inserttext = prompt("Gib die URL des Datei an:" + "\n[MEDIA=http://]EINSTELLUNGEN[/MEDIA]", "http://");
		

	if ((inserttext != "http://") && (filetype == "") && (inserttext != "") && (inserttext != null)){
	addtext = "[MEDIA=" + inserttext + "] type=application/x-mplayer2 ShowControls=true ShowStatusBar=true EnableContextMenu=false AutoStart=true Loop=false Height=280 Width=360 Hidden=false [/MEDIA] ";
	} else {
	if ((inserttext != "http://") && (filetype == "ja") && (inserttext != "") && (inserttext != null)) addtext = "[MEDIA=http://www.youtube.com/v/" + inserttext + "] width=389 height=325 type=application/x-shockwave-flash wmode=transparent[/MEDIA] ";
	else addtext="";
	}
	
	
	AddText(addtext);
}


/// fügt den [IMG] tag hinzu ///
function AddImg() {
	inserttext = prompt("Gib die URL des Bildes an:" + "\n[IMG]xxx[/IMG]", "http://");
	if ((inserttext != "http://") && (inserttext != "") && (inserttext != null)) addtext = " [IMG]" + inserttext + "[/IMG] ";
	else addtext="";
	
	AddText(addtext);
}



/// fügt Code eines andern Fensters ein ///
function AddCodeFromWindow(thecode) {
	opener.document.post.message.value += thecode + " ";
	opener.post.message.focus();
}


function AddCode(thecode) {
	AddText(thecode);
}


/// Toggle Funktion ///
function Toggle(id) {

  spanid1 = "ToggleRow_"+id;
  spanid2 = "ToggleImg_"+id;
  val = document.getElementById(spanid1).style.display;
  if (val == "none")
  {
    document.getElementById(spanid1).style.display = "block";
    document.getElementById(spanid2).src = "images/icons/collapse.gif";
    document.getElementById(spanid2).alt = "show";
  }
  else
  {
    document.getElementById(spanid1).style.display = "none";
    document.getElementById(spanid2).src = "images/icons/expand.gif"
    document.getElementById(spanid2).alt = "hide";
  }
}


function MM_openUrl(url) { //v1.0
  location.replace(url);
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_jumpMenuGo(selName,targ,restore){ //v3.0
  var selObj = MM_findObj(selName); if (selObj) MM_jumpMenu(targ,selObj,restore);
}

function MM_confirm(msg, url) { //v1.0
  if(confirm(msg)) location.replace(url);
}

function MM_openBrWindow(theURL,winName,features) { 
  window.open(theURL,winName,features);
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function SelectAll() {
	for(var x=0;x<document.form.elements.length;x++) {
		var y=document.form.elements[x];
		if(y.name!='ALL') y.checked=document.form.ALL.checked;
	}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}





/**
* BB-CODE
*/


var clientPC = navigator.userAgent.toLowerCase();
var clientVer = parseInt(navigator.appVersion);

var is_ie = ((clientPC.indexOf("msie") != -1) && (clientPC.indexOf("opera") == -1));
var is_nav = ((clientPC.indexOf('mozilla')!=-1) && (clientPC.indexOf('spoofer')==-1)
                && (clientPC.indexOf('compatible') == -1) && (clientPC.indexOf('opera')==-1)
                && (clientPC.indexOf('webtv')==-1) && (clientPC.indexOf('hotjava')==-1));
var is_moz = 0;

var is_win = ((clientPC.indexOf("win")!=-1) || (clientPC.indexOf("16bit") != -1));
var is_mac = (clientPC.indexOf("mac")!=-1);

bbcode = new Array();
bbtags = new Array('[B]','[/B]','[I]','[/I]','[U]','[/U]','[align=LEFT]','[/align]','[align=CENTER]','[/align]','[align=RIGHT]','[/align]','[list=]','[/list]','[img]','[/img]','[url]','[/url]','[SCROLL]','[/SCROLL]');
imageTag = false;

function getarraysize(thearray) {
        for (i = 0; i < thearray.length; i++) {
                if ((thearray[i] == "undefined") || (thearray[i] == "") || (thearray[i] == null))
                        return i;
                }
        return thearray.length;
}

function arraypush(thearray,value) {
        thearray[ getarraysize(thearray) ] = value;
}

function arraypop(thearray) {
        thearraysize = getarraysize(thearray);
        retval = thearray[thearraysize - 1];
        delete thearray[thearraysize - 1];
        return retval;
}


function bbfontstyle(bbopen, bbclose) {
        var txtarea = document.post.message;

        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (!theSelection) {
                        txtarea.value += bbopen + bbclose;
                        txtarea.focus();
                        return;
                }
                document.selection.createRange().text = bbopen + theSelection + bbclose;
                txtarea.focus();
                return;
        }
        else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
        {
                mozWrap(txtarea, bbopen, bbclose);
                return;
        }
        else
        {
                txtarea.value += bbopen + bbclose;
                txtarea.focus();
        }
        storeCaret(txtarea);
}


function bbstyle(bbnumber) {
        var txtarea = document.post.message;

        txtarea.focus();
        donotinsert = false;
        theSelection = false;
        bblast = 0;

        if (bbnumber == -1) { // Close all open tags & default button names
                while (bbcode[0]) {
                        butnumber = arraypop(bbcode) - 1;
                        txtarea.value += bbtags[butnumber + 1];
                        buttext = eval('document.post.addbbcode' + butnumber + '.value');
                        eval('document.post.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
                }
                imageTag = false; // All tags are closed including image tags :D
                txtarea.focus();
                return;
        }

        if ((clientVer >= 4) && is_ie && is_win)
        {
                theSelection = document.selection.createRange().text; // Get text selection
                if (theSelection) {
                        // Add tags around selection
                        document.selection.createRange().text = bbtags[bbnumber] + theSelection + bbtags[bbnumber+1];
                        txtarea.focus();
                        theSelection = '';
                        return;
                }
        }
        else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
        {
                mozWrap(txtarea, bbtags[bbnumber], bbtags[bbnumber+1]);
                return;
        }

        // Find last occurance of an open tag the same as the one just clicked
        for (i = 0; i < bbcode.length; i++) {
                if (bbcode[i] == bbnumber+1) {
                        bblast = i;
                        donotinsert = true;
                }
        }

        if (donotinsert) {                // Close all open tags up to the one just clicked & default button names
                while (bbcode[bblast]) {
                                butnumber = arraypop(bbcode) - 1;
                                txtarea.value += bbtags[butnumber + 1];
                                buttext = eval('document.post.addbbcode' + butnumber + '.value');
                                eval('document.post.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
                                imageTag = false;
                        }
                        txtarea.focus();
                        return;
        } else { // Open tags

                if (imageTag && (bbnumber != 14)) {                // Close image tag before adding another
                        txtarea.value += bbtags[15];
                        lastValue = arraypop(bbcode) - 1;        // Remove the close image tag from the list
                        document.post.addbbcode14.value = "Img";        // Return button back to normal state
                        imageTag = false;
                }

                // Open tag
                txtarea.value += bbtags[bbnumber];
                if ((bbnumber == 14) && (imageTag == false)) imageTag = 1; // Check to stop additional tags after an unclosed image tag
                arraypush(bbcode,bbnumber+1);
                eval('document.post.addbbcode'+bbnumber+'.value += "*"');
                txtarea.focus();
                return;
        }
        storeCaret(txtarea);
}


function mozWrap(txtarea, open, close)
{
        var selLength = txtarea.textLength;
        var selStart = txtarea.selectionStart;
        var selEnd = txtarea.selectionEnd;
        if (selEnd == 1 || selEnd == 2)
                selEnd = selLength;

        var s1 = (txtarea.value).substring(0,selStart);
        var s2 = (txtarea.value).substring(selStart, selEnd)
        var s3 = (txtarea.value).substring(selEnd, selLength);
        txtarea.value = s1 + open + s2 + close + s3;
        return;
}


function storeCaret(textEl) {
        if (textEl.createTextRange) textEl.caretPos = document.selection.createRange().duplicate();
}