// Load Quicktags JavaScript
        var edButtons = new Array();
        var edOpenTags = new Array();

        function edButton(id, display, tagStart, tagEnd, access, open) {
                this.id = id;                                // used to name the toolbar button
                this.display = display;                // label on button
                this.tagStart = tagStart;         // open tag
                this.tagEnd = tagEnd;                // close tag
                this.access = access;                // access key
                this.open = open;                        // set to -1 if tag does not need to be closed
        }

        // Start code
        function edShowButton(button, i) {
                if (button.id == 'ed_img') {
                        document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertImage(edCanvas);" value="' + button.display + '" />');
                }
                else if (button.id == 'ed_link') {
                        document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
                }
                else {
                        document.write('<input type="button" id="' + button.id + '" accesskey="' + button.access + '" class="ed_button" onclick="edInsertTag(edCanvas, ' + i + ');" value="' + button.display + '"  />');
                }
        }

        function edAddTag(button) {
                if (edButtons[button].tagEnd != '') {
                        edOpenTags[edOpenTags.length] = button;
                        document.getElementById(edButtons[button].id).value = '/' + document.getElementById(edButtons[button].id).value;
                }
        }

        function edRemoveTag(button) {
                for (i = 0; i < edOpenTags.length; i++) {
                        if (edOpenTags[i] == button) {
                                edOpenTags.splice(i, 1);
                                document.getElementById(edButtons[button].id).value = document.getElementById(edButtons[button].id).value.replace('/', '');
                        }
                }
        }

        function edCheckOpenTags(button) {
                var tag = 0;
                for (i = 0; i < edOpenTags.length; i++) {
                        if (edOpenTags[i] == button) {
                                tag++;
                        }
                }
                if (tag > 0) {
                        return true; // tag found
                }
                else {
                        return false; // tag not found
                }
        }

        function edCloseAllTags() {
                var count = edOpenTags.length;
                for (o = 0; o < count; o++) {
                        edInsertTag(edCanvas, edOpenTags[edOpenTags.length - 1]);
                }
        }

        function edToolbar() {
                document.write('<span id="ed_comment_toolbar">');
                for (i = 0; i < edButtons.length; i++) {
                        edShowButton(edButtons[i], i);
                }
                document.write('<input type="button" id="ed_close" class="ed_button" onclick="edCloseAllTags();" title="Sluit alle open tags" value="Sluit Tags" />');
                document.write('</span>');
        }

        // insertion code

        function edInsertTag(myField, i) {
                //IE support
                if (document.selection) {
                        myField.focus();
                    sel = document.selection.createRange();
                        if (sel.text.length > 0) {
                                sel.text = edButtons[i].tagStart + sel.text + edButtons[i].tagEnd;
                        }
                        else {
                                if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
                                        sel.text = edButtons[i].tagStart;
                                        edAddTag(i);
                                }
                                else {
                                        sel.text = edButtons[i].tagEnd;
                                        edRemoveTag(i);
                                }
                        }
                        myField.focus();
                }
                //MOZILLA/NETSCAPE support
                else if (myField.selectionStart || myField.selectionStart == '0') {
                        var startPos = myField.selectionStart;
                        var endPos = myField.selectionEnd;
                        var cursorPos = endPos;
                        var scrollTop = myField.scrollTop;

                        if (startPos != endPos) {
                                myField.value = myField.value.substring(0, startPos)
                                              + edButtons[i].tagStart
                                              + myField.value.substring(startPos, endPos)
                                              + edButtons[i].tagEnd
                                              + myField.value.substring(endPos, myField.value.length);
                                cursorPos += edButtons[i].tagStart.length + edButtons[i].tagEnd.length;
                        }
                        else {
                                if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
                                        myField.value = myField.value.substring(0, startPos)
                                                      + edButtons[i].tagStart
                                                      + myField.value.substring(endPos, myField.value.length);
                                        edAddTag(i);
                                        cursorPos = startPos + edButtons[i].tagStart.length;
                                }
                                else {
                                        myField.value = myField.value.substring(0, startPos)
                                                      + edButtons[i].tagEnd
                                                      + myField.value.substring(endPos, myField.value.length);
                                        edRemoveTag(i);
                                        cursorPos = startPos + edButtons[i].tagEnd.length;
                                }
                        }
                        myField.focus();
                        myField.selectionStart = cursorPos;
                        myField.selectionEnd = cursorPos;
                        myField.scrollTop = scrollTop;
                }
                else {
                        if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
                                myField.value += edButtons[i].tagStart;
                                edAddTag(i);
                        }
                        else {
                                myField.value += edButtons[i].tagEnd;
                                edRemoveTag(i);
                        }
                        myField.focus();
                }
        }

        function edInsertContent(myField, myValue) {
                //IE support
                if (document.selection) {
                        myField.focus();
                        sel = document.selection.createRange();
                        sel.text = myValue;
                        myField.focus();
                }
                //MOZILLA/NETSCAPE support
                else if (myField.selectionStart || myField.selectionStart == '0') {
                        var startPos = myField.selectionStart;
                        var endPos = myField.selectionEnd;
                        myField.value = myField.value.substring(0, startPos)
                                      + myValue
                              + myField.value.substring(endPos, myField.value.length);
                        myField.focus();
                        myField.selectionStart = startPos + myValue.length;
                        myField.selectionEnd = startPos + myValue.length;
                } else {
                        myField.value += myValue;
                        myField.focus();
                }
        }

        function edInsertLink(myField, i, defaultValue) {
                if (!defaultValue) {
                        defaultValue = 'http://';
                }
                if (!edCheckOpenTags(i)) {
                        var URL = prompt('Enter the URL' ,defaultValue);
                        if (URL) {
                                edButtons[i].tagStart = '<a href="' + URL + '">';
                                edInsertTag(myField, i);
                        }
                }
                else {
                        edInsertTag(myField, i);
                }
        }

        function edInsertLink(myField, i, defaultValue) {
                if (!defaultValue) {
                        defaultValue = 'http://';
                }
                if (!edCheckOpenTags(i)) {
                        var URL = prompt('Enter the URL' ,defaultValue);
                        if (URL) {
                                edButtons[i].tagStart = '<a href="' + URL + '">';
                                edInsertTag(myField, i);
                        }
                }
                else {
                        edInsertTag(myField, i);
                }
        }

        function edInsertImage(myField) {
                var myValue = prompt('Geef de URL van de afbeelding:', 'http://');
                if (myValue) {
                        myValue = '[img]'
                                        + myValue
                                        + '[/img]';
                        edInsertContent(myField, myValue);
                }
        }