var theSelection = false;

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

hr_help = "Ein Horizontaler Seperator";
b_help = "Text in fett: [b]Text[/b]";
i_help = "Text in kursiv: [i]Text[/i]";
u_help = "Unterstrichener Text: [u]Text[/u]";
q_help = "Zitat: [quote]Text[/quote]";
c_help = "Code anzeigen: [code]Code[/code]";
l_help = "Liste: [list]Text[/list]";
o_help = "Geordnete Liste: [list=]Text[/list]";
p_help = "Bild einfügen: [img]http://URL_des_Bildes[/img]";
y_help = "Bild einfügen: [imgm]imgid[/imgm]";
w_help = "URL einfügen: [url]http://URL[/url] oder [url=http://url]URL Text[/url]";
a_help = "Alle offenen BBCodes schließen";
s_help = "Schriftfarbe: [color=red]Text[/color]";
f_help = "Schriftgröße: [size=10]Kleiner Text[/size]";
sc_help = "Smilie Creator: [schild=1]Text[/schild] Erstellt einen Smilie mit Schild";
sb_help = "Font color: [COLOR=#000000]text[/COLOR]";
e_help = "Text höher stellen (a²+b²=c²): [sup]Texte[/sup]";
r_help = "Text tiefer stellen: [sub]Texte[/sub]";
z_help = "Zentriert Text&Images: [center]Text[/center]";
ri_help = "Rechtsbündig Text&Images: [right]Text[/right]";
tab_help = "Tabelle [table]Text1A[col]Text2A[row]Text1B[col]Text2B[/table]";
row_help = "Neue Zeile in Tabelle";
col_help = "Nächste Zelle in Tabelle";

var Quote = 0;
var Bold  = 0;
var Italic = 0;
var Underline = 0;
var Code = 0;
var Super = 0;
var Sub = 0;
var Center = 0;
var Right = 0;
var FloatL = 0;
var FloatR = 0;
var Table = 0;


function helpline(help) {
        document.post.helpbox.value = eval(help + "_help");
        document.post.helpbox.readOnly = "true";
}

function checkForm() {
        formErrors = false;
        if (document.post.edittext.value.length < 2) {
                formErrors = "You must enter a message when posting";
        }
        if (formErrors) {
                alert(formErrors);
                return false;
        } else {
                //formObj.preview.disabled = true;
                //formObj.submit.disabled = true;
                return true;
        }
}

function emoticon(text) {
        text = ' ' + text + ' ';
        PostWrite(text);
}

function bbfontstyle(bbopen, bbclose) {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (!theSelection) {
                        // document.post.edittext.value += bbopen + bbclose;
                        // document.post.edittext.focus();
                        var ToAdd = bbopen + bbclose;
                        PostWrite(ToAdd);
                        return;
                }
                document.selection.createRange().text = bbopen + theSelection + bbclose;
                document.post.edittext.focus();
                return;
        } else {
                // document.post.edittext.value += bbopen + bbclose;
                // document.post.edittext.focus();
                var ToAdd = bbopen + bbclose;
                PostWrite(ToAdd);
                return;
        }
        storeCaret(document.post.edittext);
}

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

function PostWrite(text) {
        if (document.post.edittext.createTextRange && document.post.edittext.caretPos) {
                var caretPos = document.post.edittext.caretPos;
                caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? caretPos.text + text + ' ' : caretPos.text + text;
        }
        else document.post.edittext.value += text;
        document.post.edittext.focus(caretPos)
}

function BBCcode() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[code]" + theSelection + "[/code]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Code == 0) {
                ToAdd = "[code]";
                document.post.code.value = "Code*";
                Code = 1;
        } else {
                ToAdd = "[/code]";
                document.post.code.value = "Code";
                Code = 0;
        }
        PostWrite(ToAdd);
}

function BBCquote() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[quote]" + theSelection + "[/quote]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Quote == 0) {
                ToAdd = "[quote]";
                document.post.quote.value = "Quote*";
                Quote = 1;
        } else {
                ToAdd = "[/quote]";
                document.post.quote.value = "Quote";
                Quote = 0;
        }
        PostWrite(ToAdd);
}

function BBCcenter() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[center]" + theSelection + "[/center]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Center == 0) {
                ToAdd = "[center]";
                document.post.center.value = "CENTER*";
                Center = 1;
        } else {
                ToAdd = "[/center]";
                document.post.center.value = "CENTER";
                Center = 0;
        }
        PostWrite(ToAdd);
}

function BBCright() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[right]" + theSelection + "[/right]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Right == 0) {
                ToAdd = "[right]";
                document.post.right.value = "RIGHT*";
                Right = 1;
        } else {
                ToAdd = "[/right]";
                document.post.right.value = "RIGHT";
                Right = 0;
        }
        PostWrite(ToAdd);
}

function BBCbold() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[b]" + theSelection + "[/b]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Bold == 0) {
                ToAdd = "[b]";
                document.post.bold.value = "B*";
                Bold = 1;
        } else {
                ToAdd = "[/b]";
                document.post.bold.value = "B";
                Bold = 0;
        }
        PostWrite(ToAdd);
}

function BBCitalic() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[i]" + theSelection + "[/i]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Italic == 0) {
                ToAdd = "[i]";
                document.post.italic.value = "i*";
                Italic = 1;
        } else {
                ToAdd = "[/i]";
                document.post.italic.value = "i";
                Italic = 0;
        }
        PostWrite(ToAdd);
}

function BBCunder() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[u]" + theSelection + "[/u]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Underline == 0) {
                ToAdd = "[u]";
                document.post.under.value = "U*";
                Underline = 1;
        } else {
                ToAdd = "[/u]";
                document.post.under.value = "U";
                Underline = 0;
        }
        PostWrite(ToAdd);
}

function BBCfloatl() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[fl]" + theSelection + "[/fl]";
                document.post.edittext.focus();
                return;
                }
        }
        if (FloatL == 0) {
                ToAdd = "[fl]";
                document.post.floatl.value = "FL*";
                FloatL = 1;
        } else {
                ToAdd = "[/fl]";
                document.post.floatl.value = "FL";
                FloatL = 0;
        }
        PostWrite(ToAdd);
}

function BBCfloatr() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[fr]" + theSelection + "[/fr]";
                document.post.edittext.focus();
                return;
                }
        }
        if (FloatR == 0) {
                ToAdd = "[fr]";
                document.post.floatr.value = "FR*";
                FloatR = 1;
        } else {
                ToAdd = "[/fr]";
                document.post.floatr.value = "FR";
                FloatR = 0;
        }
        PostWrite(ToAdd);
}

function BBCtable() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[table]" + theSelection + "[/table]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Table == 0) {
                ToAdd = "[table]";
                document.post.table.value = "Table*";
                document.post.row.visibility="show";
                document.post.col.visibility="show";
                Table = 1;
        } else {
                ToAdd = "[/table]";
                document.post.table.value = "Table";
                document.post.row.visibility="hide";
                document.post.col.visibility="hide";
                Table = 0;
        }
        PostWrite(ToAdd);
}

function BBCcol() {
        ToAdd = "[col]";
        PostWrite(ToAdd);
}

function BBCrow() {
        ToAdd = "[row]";
        PostWrite(ToAdd);
}

function BBChr() {
        ToAdd = "[hr]";
        PostWrite(ToAdd);
}


function BBCurl() {
        var FoundErrors = '';
        var enterURL   = prompt("Enter your URL", "http://");
        var enterTITLE = prompt("Enter the webpage title", "Webpage Title");
        if (!enterURL)    {
                FoundErrors += " You have not entered the URL yet!";
        }
        if (!enterTITLE)  {
                FoundErrors += " You have not entered the title yet!";
        }
        if (FoundErrors)  {
                alert("Error!"+FoundErrors);
                return;
        }
        var ToAdd = "[url="+enterURL+"]"+enterTITLE+"[/url]";
        //document.post.edittext.value+=ToAdd;
        //document.post.edittext.focus();
        PostWrite(ToAdd);
}

function BBCimg() {
        var FoundErrors = '';
        var enterURL   = prompt("Enter your image URL","http://");
        if (!enterURL) {
                FoundErrors += " You have not entered the URL yet!";
        }
        if (FoundErrors) {
                alert("Error!"+FoundErrors);
                return;
        }
        var ToAdd = "[img]"+enterURL+"[/img]";
        //document.post.edittext.value+=ToAdd;
        //document.post.edittext.focus();
        PostWrite(ToAdd);
}

function BBCsuper() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[sup]" + theSelection + "[/sup]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Super == 0) {
                ToAdd = "[sup]";
                document.post.sup.value = "SUP*";
                Super = 1;
        } else {
                ToAdd = "[/sup]";
                document.post.sup.value = "SUP";
                Super = 0;
        }
        PostWrite(ToAdd);
}

function BBCsub() {
        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (theSelection != '') {
                document.selection.createRange().text = "[sub]" + theSelection + "[/sub]";
                document.post.edittext.focus();
                return;
                }
        }
        if (Sub == 0) {
                ToAdd = "[sub]";
                document.post.sub.value = "SUB*";
                Sub = 1;
        } else {
                ToAdd = "[/sub]";
                document.post.sub.value = "SUB";
                Sub = 0;
        }
        PostWrite(ToAdd);
}

// -------------------------------------------------------------------
// swapOptions(select_object,option1,option2)
//  Swap positions of two options in a select list
// -------------------------------------------------------------------
function swapOptions(obj,i,j) {
        var o = obj.options;
        var i_selected = o[i].selected;
        var j_selected = o[j].selected;
        var temp = new Option(o[i].text, o[i].value, o[i].defaultSelected, o[i].selected);
        var temp2= new Option(o[j].text, o[j].value, o[j].defaultSelected, o[j].selected);
        o[i] = temp2;
        o[j] = temp;
        o[i].selected = j_selected;
        o[j].selected = i_selected;
        }

// -------------------------------------------------------------------
// moveOptionUp(select_object)
//  Move selected option in a select list up one
// -------------------------------------------------------------------
function moveOptionUp(obj) {
        for (i=0; i<obj.options.length; i++) {
                if (obj.options[i].selected) {
                        if (i != 0 && !obj.options[i-1].selected) {
                                swapOptions(obj,i,i-1);
                                obj.options[i-1].selected = true;
                                }
                        }
                }
        }

// -------------------------------------------------------------------
// moveOptionDown(select_object)
//  Move selected option in a select list down one
// -------------------------------------------------------------------
function moveOptionDown(obj) {
        for (i=obj.options.length-1; i>=0; i--) {
                if (obj.options[i].selected) {
                        if (i != (obj.options.length-1) && ! obj.options[i+1].selected) {
                                swapOptions(obj,i,i+1);
                                obj.options[i+1].selected = true;
                                }
                        }
                }
        }

// -------------------------------------------------------------------
// removeSelectedOptions(select_object)
//  Remove all selected options from a list
//  (Thanks to Gene Ninestein)
// -------------------------------------------------------------------


  function moveOptionBottom(obj) {
        for (i=obj.options.length-1; i>=0; i--) {
                if (obj.options[i].selected) {
                        if (i != (obj.options.length-1) && ! obj.options[i+1].selected) {
                                swapOptions(obj,i,i+1);
                                obj.options[i+1].selected = true;
                                }
                        }
                }
        }


function moveOptionTop(obj) {
//laenge ermitteln
//+ obj.editdir.updownlist.length +
//auf 0 setzen
 if(obj.editdir.updownlist.selectedIndex == 2)
  obj.editdir.updownlist.selectedIndex = 0;
}