// Autocompleter http://www.codeproject.com/KB/scripting/jsactb.aspx by zichun - Thank you!

function actb(obj,ca){
        /* ---- Public Variables ---- */
        this.actb_timeOut = -1; // Autocomplete Timeout in ms (-1: autocomplete never time out)
        this.actb_lim = 4;    // Number of elements autocomplete can show (-1: no limit)
        this.actb_firstText = false; // should the auto complete be limited to the beginning of keyword?
        this.actb_mouse = true; // Enable Mouse Support
        this.actb_delimiter = new Array(';',',');  // Delimiter for multiple autocomplete. Set it to empty array for single autocomplete
        this.actb_startcheck = 0; // Show widget only after this number of characters is typed in.
        /* ---- Public Variables ---- */

        /* --- Styles --- */
        this.actb_bgColor = '#888888';
        this.actb_textColor = '#FFFFFF';
        this.actb_hColor = '#000000';
        this.actb_fFamily = 'Verdana';
        this.actb_fSize = '11px';
        this.actb_width = '100px';
        this.actb_hStyle = 'text-decoration:underline;font-weight="bold"';
        /* --- Styles --- */

        /* ---- Private Variables ---- */
        var actb_delimwords = new Array();
        var actb_cdelimword = 0;
        var actb_delimchar = new Array();
        var actb_display = false;
        var actb_pos = 0;
        var actb_total = 0;
        var actb_curr = null;
        var actb_rangeu = 0;
        var actb_ranged = 0;
        var actb_bool = new Array();
        var actb_pre = 0;
        var actb_toid;
        var actb_tomake = false;
        var actb_getpre = "";
        var actb_mouse_on_list = 1;
        var actb_kwcount = 0;
        var actb_caretmove = false;
        this.actb_keywords = new Array();
        /* ---- Private Variables---- */

        this.actb_keywords = ca;
        var actb_self = this;

        actb_curr = obj;

        addEvent(actb_curr,"focus",actb_setup);
        function actb_setup(){
                addEvent(document,"keydown",actb_checkkey);
                addEvent(document,"onclick",actb_checkkey2);
                addEvent(actb_curr,"blur",actb_clear);
                addEvent(document,"keypress",actb_keypress);
        }

        function actb_clear(evt){
                if (!evt) evt = event;
                removeEvent(document,"keydown",actb_checkkey);
                removeEvent(document,"onclick",actb_checkkey2);
                removeEvent(actb_curr,"blur",actb_clear);
                removeEvent(document,"keypress",actb_keypress);
                actb_removedisp();
        }
        function actb_parse(n){
                if (actb_self.actb_delimiter.length > 0){
                        var t = actb_delimwords[actb_cdelimword].trim().addslashes();
                        var plen = actb_delimwords[actb_cdelimword].trim().length;
                }else{
                        var t = actb_curr.value.addslashes();
                        var plen = actb_curr.value.length;
                }
                var tobuild = '';
                var i;

                if (actb_self.actb_firstText){
                        var re = new RegExp("^" + t, "i");
                }else{
                        var re = new RegExp(t, "i");
                }
                var p = n.search(re);

                for (i=0;i<p;i++){
                        tobuild += n.substr(i,1);
                }
                tobuild += "<font style='"+(actb_self.actb_hStyle)+"'>"
                for (i=p;i<plen+p;i++){
                        tobuild += n.substr(i,1);
                }
                tobuild += "</font>";
                        for (i=plen+p;i<n.length;i++){
                        tobuild += n.substr(i,1);
                }
                return tobuild;
        }
        function actb_generate(){
                if (document.getElementById('tat_table')){ actb_display = false;document.body.removeChild(document.getElementById('tat_table')); }
                if (actb_kwcount == 0){
                        actb_display = false;
                        return;
                }
                a = document.createElement('table');
                a.cellSpacing='1px';
                a.cellPadding='2px';
                a.style.position='absolute';
                a.style.top = eval(curTop(actb_curr) + actb_curr.offsetHeight) + "px";
                a.style.left = curLeft(actb_curr) + "px";
                a.style.backgroundColor=actb_self.actb_bgColor;
                a.id = 'tat_table';
                document.body.appendChild(a);
                var i;
                var first = true;
                var j = 1;
                if (actb_self.actb_mouse){
                        a.onmouseout = actb_table_unfocus;
                        a.onmouseover = actb_table_focus;
                }
                var counter = 0;
                for (i=0;i<actb_self.actb_keywords.length;i++){
                        if (actb_bool[i]){
                                counter++;
                                r = a.insertRow(-1);
                                if (first && !actb_tomake){
                                        r.style.backgroundColor = actb_self.actb_hColor;
                                        first = false;
                                        actb_pos = counter;
                                }else if(actb_pre == i){
                                        r.style.backgroundColor = actb_self.actb_hColor;
                                        first = false;
                                        actb_pos = counter;
                                }else{
                                        r.style.backgroundColor = actb_self.actb_bgColor;
                                }
                                r.id = 'tat_tr'+(j);
                                c = r.insertCell(-1);
                                c.style.color = actb_self.actb_textColor;
                                c.style.fontFamily = actb_self.actb_fFamily;
                                c.style.fontSize = actb_self.actb_fSize;
                                c.innerHTML = actb_parse(actb_self.actb_keywords[i]);
                                c.id = 'tat_td'+(j);
                                c.setAttribute('pos',j);
                                if (actb_self.actb_mouse){
                                        c.style.cursor = 'pointer';
                                        c.onclick=actb_mouseclick;
                                        c.onmouseover = actb_table_highlight;
                                }
                                j++;
                        }
                        if (j - 1 == actb_self.actb_lim && j < actb_total){
                                r = a.insertRow(-1);
                                r.style.backgroundColor = actb_self.actb_bgColor;
                                c = r.insertCell(-1);
                                c.style.color = actb_self.actb_textColor;
                                c.style.fontFamily = 'arial narrow';
                                c.style.fontSize = actb_self.actb_fSize;
                                c.align='center';
                                replaceHTML(c,'\\/');
                                if (actb_self.actb_mouse){
                                        c.style.cursor = 'pointer';
                                        c.onclick = actb_mouse_down;
                                }
                                break;
                        }
                }
                actb_rangeu = 1;
                actb_ranged = j-1;
                actb_display = true;
                if (actb_pos <= 0) actb_pos = 1;
        }
        function actb_remake(){
                document.body.removeChild(document.getElementById('tat_table'));
                a = document.createElement('table');
                a.cellSpacing='1px';
                a.cellPadding='2px';
                a.style.position='absolute';
                a.style.top = eval(curTop(actb_curr) + actb_curr.offsetHeight) + "px";
                a.style.left = curLeft(actb_curr) + "px";
                a.style.backgroundColor=actb_self.actb_bgColor;
                a.id = 'tat_table';
                if (actb_self.actb_mouse){
                        a.onmouseout= actb_table_unfocus;
                        a.onmouseover=actb_table_focus;
                }
                document.body.appendChild(a);
                var i;
                var first = true;
                var j = 1;
                if (actb_rangeu > 1){
                        r = a.insertRow(-1);
                        r.style.backgroundColor = actb_self.actb_bgColor;
                        c = r.insertCell(-1);
                        c.style.color = actb_self.actb_textColor;
                        c.style.fontFamily = 'arial narrow';
                        c.style.fontSize = actb_self.actb_fSize;
                        c.align='center';
                        replaceHTML(c,'/\\');
                        if (actb_self.actb_mouse){
                                c.style.cursor = 'pointer';
                                c.onclick = actb_mouse_up;
                        }
                }
                for (i=0;i<actb_self.actb_keywords.length;i++){
                        if (actb_bool[i]){
                                if (j >= actb_rangeu && j <= actb_ranged){
                                        r = a.insertRow(-1);
                                        r.style.backgroundColor = actb_self.actb_bgColor;
                                        r.id = 'tat_tr'+(j);
                                        c = r.insertCell(-1);
                                        c.style.color = actb_self.actb_textColor;
                                        c.style.fontFamily = actb_self.actb_fFamily;
                                        c.style.fontSize = actb_self.actb_fSize;
                                        c.innerHTML = actb_parse(actb_self.actb_keywords[i]);
                                        c.id = 'tat_td'+(j);
                                        c.setAttribute('pos',j);
                                        if (actb_self.actb_mouse){
                                                c.style.cursor = 'pointer';
                                                c.onclick=actb_mouseclick;
                                                c.onmouseover = actb_table_highlight;
                                        }
                                        j++;
                                }else{
                                        j++;
                                }
                        }
                        if (j > actb_ranged) break;
                }
                if (j-1 < actb_total){
                        r = a.insertRow(-1);
                        r.style.backgroundColor = actb_self.actb_bgColor;
                        c = r.insertCell(-1);
                        c.style.color = actb_self.actb_textColor;
                        c.style.fontFamily = 'arial narrow';
                        c.style.fontSize = actb_self.actb_fSize;
                        c.align='center';
                        replaceHTML(c,'\\/');
                        if (actb_self.actb_mouse){
                                c.style.cursor = 'pointer';
                                c.onclick = actb_mouse_down;
                        }
                }
        }
        function actb_goup(){
                if (!actb_display) return;
                if (actb_pos == 1) return;
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
                actb_pos--;
                if (actb_pos < actb_rangeu) actb_moveup();
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
                if (actb_toid) clearTimeout(actb_toid);
                if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
        }
        function actb_godown(){
                if (!actb_display) return;
                if (actb_pos == actb_total) return;
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
                actb_pos++;
                if (actb_pos > actb_ranged) actb_movedown();
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
                if (actb_toid) clearTimeout(actb_toid);
                if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
        }
        function actb_movedown(){
                actb_rangeu++;
                actb_ranged++;
                actb_remake();
        }
        function actb_moveup(){
                actb_rangeu--;
                actb_ranged--;
                actb_remake();
        }

        /* Mouse */
        function actb_mouse_down(){
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
                actb_pos++;
                actb_movedown();
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
                actb_curr.focus();
                actb_mouse_on_list = 0;
                if (actb_toid) clearTimeout(actb_toid);
                if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
        }
        function actb_mouse_up(evt){
                if (!evt) evt = event;
                if (evt.stopPropagation){
                        evt.stopPropagation();
                }else{
                        evt.cancelBubble = true;
                }
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
                actb_pos--;
                actb_moveup();
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
                actb_curr.focus();
                actb_mouse_on_list = 0;
                if (actb_toid) clearTimeout(actb_toid);
                if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
        }
        function actb_mouseclick(evt){
                if (!evt) evt = event;
                if (!actb_display) return;
                actb_mouse_on_list = 0;
                actb_pos = this.getAttribute('pos');
                actb_penter();
        }
        function actb_table_focus(){
                actb_mouse_on_list = 1;
        }
        function actb_table_unfocus(){
                actb_mouse_on_list = 0;
                if (actb_toid) clearTimeout(actb_toid);
                if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list = 0;actb_removedisp();},actb_self.actb_timeOut);
        }
        function actb_table_highlight(){
                actb_mouse_on_list = 1;
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
                actb_pos = this.getAttribute('pos');
                while (actb_pos < actb_rangeu) actb_moveup();
                while (actb_pos > actb_ranged) actb_movedown();
                document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
                if (actb_toid) clearTimeout(actb_toid);
                if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list = 0;actb_removedisp();},actb_self.actb_timeOut);
        }
        /* ---- */

        function actb_insertword(a){
                if (actb_self.actb_delimiter.length > 0){
                        str = '';
                        l=0;
                        for (i=0;i<actb_delimwords.length;i++){
                                if (actb_cdelimword == i){
                                        prespace = postspace = '';
                                        gotbreak = false;
                                        for (j=0;j<actb_delimwords[i].length;++j){
                                                if (actb_delimwords[i].charAt(j) != ' '){
                                                        gotbreak = true;
                                                        break;
                                                }
                                                prespace += ' ';
                                        }
                                        for (j=actb_delimwords[i].length-1;j>=0;--j){
                                                if (actb_delimwords[i].charAt(j) != ' ') break;
                                                postspace += ' ';
                                        }
                                        str += prespace;
                                        str += a;
                                        l = str.length;
                                        if (gotbreak) str += postspace;
                                }else{
                                        str += actb_delimwords[i];
                                }
                                if (i != actb_delimwords.length - 1){
                                        str += actb_delimchar[i];
                                }
                        }
                        actb_curr.value = str;
                        setCaret(actb_curr,l);
                }else{
                        actb_curr.value = a;
                }
                actb_mouse_on_list = 0;
                actb_removedisp();
        }
        function actb_penter(){
                if (!actb_display) return;
                actb_display = false;
                var word = '';
                var c = 0;
                for (var i=0;i<=actb_self.actb_keywords.length;i++){
                        if (actb_bool[i]) c++;
                        if (c == actb_pos){
                                word = actb_self.actb_keywords[i];
                                break;
                        }
                }
                actb_insertword(word);
                l = getCaretStart(actb_curr);
        }
        function actb_removedisp(){
                if (actb_mouse_on_list==0){
                        actb_display = 0;
                        if (document.getElementById('tat_table')){ document.body.removeChild(document.getElementById('tat_table')); }
                        if (actb_toid) clearTimeout(actb_toid);
                }
        }
        function actb_keypress(e){
                if (actb_caretmove) stopEvent(e);
                return !actb_caretmove;
        }
        function actb_checkkey2(evt){
          actb_self.actb_keywords='www.';
          actb_checkkey(evt);
        }
        function actb_checkkey(evt){
                if (!evt) evt = event;
                a = evt.keyCode;
                caret_pos_start = getCaretStart(actb_curr);
                actb_caretmove = 0;
                switch (a){
                        case 38:
                                actb_goup();
                                actb_caretmove = 1;
                                return false;
                                break;
                        case 40:
                                actb_godown();
                                actb_caretmove = 1;
                                return false;
                                break;
                        case 13: case 9:
                                if (actb_display){
                                        actb_caretmove = 1;
                                        actb_penter();
                                        return false;
                                }else{
                                        return true;
                                }
                                break;
                        default:
                                setTimeout(function(){actb_tocomplete(a)},50);
                                break;
                }
        }

        function actb_tocomplete(kc){
                if (kc == 38 || kc == 40 || kc == 13) return;
                var i;
                if (actb_display){
                        var word = 0;
                        var c = 0;
                        for (var i=0;i<=actb_self.actb_keywords.length;i++){
                                if (actb_bool[i]) c++;
                                if (c == actb_pos){
                                        word = i;
                                        break;
                                }
                        }
                        actb_pre = word;
                }else{ actb_pre = -1};

                if (actb_curr.value == ''){
                        actb_mouse_on_list = 0;
                        actb_removedisp();
                        return;
                }
                if (actb_self.actb_delimiter.length > 0){
                        caret_pos_start = getCaretStart(actb_curr);
                        caret_pos_end = getCaretEnd(actb_curr);

                        delim_split = '';
                        for (i=0;i<actb_self.actb_delimiter.length;i++){
                                delim_split += actb_self.actb_delimiter[i];
                        }
                        delim_split = delim_split.addslashes();
                        delim_split_rx = new RegExp("(["+delim_split+"])");
                        c = 0;
                        actb_delimwords = new Array();
                        actb_delimwords[0] = '';
                        for (i=0,j=actb_curr.value.length;i<actb_curr.value.length;i++,j--){
                                if (actb_curr.value.substr(i,j).search(delim_split_rx) == 0){
                                        ma = actb_curr.value.substr(i,j).match(delim_split_rx);
                                        actb_delimchar[c] = ma[1];
                                        c++;
                                        actb_delimwords[c] = '';
                                }else{
                                        actb_delimwords[c] += actb_curr.value.charAt(i);
                                }
                        }

                        var l = 0;
                        actb_cdelimword = -1;
                        for (i=0;i<actb_delimwords.length;i++){
                                if (caret_pos_end >= l && caret_pos_end <= l + actb_delimwords[i].length){
                                        actb_cdelimword = i;
                                }
                                l+=actb_delimwords[i].length + 1;
                        }
                        var ot = actb_delimwords[actb_cdelimword].trim();
                        var t = actb_delimwords[actb_cdelimword].addslashes().trim();
                }else{
                        var ot = actb_curr.value;
                        var t = actb_curr.value.addslashes();
                }
                if (ot.length == 0){
                        actb_mouse_on_list = 0;
                        actb_removedisp();
                }
                if (ot.length < actb_self.actb_startcheck) return this;
                if (actb_self.actb_firstText){
                        var re = new RegExp("^" + t, "i");
                }else{
                        var re = new RegExp(t, "i");
                }

                actb_total = 0;
                actb_tomake = false;
                actb_kwcount = 0;
                for (i=0;i<actb_self.actb_keywords.length;i++){
                        actb_bool[i] = false;
                        if (re.test(actb_self.actb_keywords[i])){
                                actb_total++;
                                actb_bool[i] = true;
                                actb_kwcount++;
                                if (actb_pre == i) actb_tomake = true;
                        }
                }

                if (actb_toid) clearTimeout(actb_toid);
                if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list = 0;actb_removedisp();},actb_self.actb_timeOut);
                actb_generate();
        }
        return this;
}
/* Event Functions */

// Add an event to the obj given
// event_name refers to the event trigger, without the "on", like click or mouseover
// func_name refers to the function callback when event is triggered
function addEvent(obj,event_name,func_name){
        if (obj.attachEvent){
                obj.attachEvent("on"+event_name, func_name);
        }else if(obj.addEventListener){
                obj.addEventListener(event_name,func_name,true);
        }else{
                obj["on"+event_name] = func_name;
        }
}

// Removes an event from the object
function removeEvent(obj,event_name,func_name){
        if (obj.detachEvent){
                obj.detachEvent("on"+event_name,func_name);
        }else if(obj.removeEventListener){
                obj.removeEventListener(event_name,func_name,true);
        }else{
                obj["on"+event_name] = null;
        }
}

// Stop an event from bubbling up the event DOM
function stopEvent(evt){
        evt || window.event;
        if (evt.stopPropagation){
                evt.stopPropagation();
                evt.preventDefault();
        }else if(typeof evt.cancelBubble != "undefined"){
                evt.cancelBubble = true;
                evt.returnValue = false;
        }
        return false;
}

// Get the obj that starts the event
function getElement(evt){
        if (window.event){
                return window.event.srcElement;
        }else{
                return evt.currentTarget;
        }
}
// Get the obj that triggers off the event
function getTargetElement(evt){
        if (window.event){
                return window.event.srcElement;
        }else{
                return evt.target;
        }
}
// For IE only, stops the obj from being selected
function stopSelect(obj){
        if (typeof obj.onselectstart != 'undefined'){
                addEvent(obj,"selectstart",function(){ return false;});
        }
}

/*    Caret Functions     */

// Get the end position of the caret in the object. Note that the obj needs to be in focus first
function getCaretEnd(obj){
        if(typeof obj.selectionEnd != "undefined"){
                return obj.selectionEnd;
        }else if(document.selection&&document.selection.createRange){
                var M=document.selection.createRange();
                try{
                        var Lp = M.duplicate();
                        Lp.moveToElementText(obj);
                }catch(e){
                        var Lp=obj.createTextRange();
                }
                Lp.setEndPoint("EndToEnd",M);
                var rb=Lp.text.length;
                if(rb>obj.value.length){
                        return -1;
                }
                return rb;
        }
}
// Get the start position of the caret in the object
function getCaretStart(obj){
        if(typeof obj.selectionStart != "undefined"){
                return obj.selectionStart;
        }else if(document.selection&&document.selection.createRange){
                var M=document.selection.createRange();
                try{
                        var Lp = M.duplicate();
                        Lp.moveToElementText(obj);
                }catch(e){
                        var Lp=obj.createTextRange();
                }
                Lp.setEndPoint("EndToStart",M);
                var rb=Lp.text.length;
                if(rb>obj.value.length){
                        return -1;
                }
                return rb;
        }
}
// sets the caret position to l in the object
function setCaret(obj,l){
        obj.focus();
        if (obj.setSelectionRange){
                obj.setSelectionRange(l,l);
        }else if(obj.createTextRange){
                m = obj.createTextRange();
                m.moveStart('character',l);
                m.collapse();
                m.select();
        }
}
// sets the caret selection from s to e in the object
function setSelection(obj,s,e){
        obj.focus();
        if (obj.setSelectionRange){
                obj.setSelectionRange(s,e);
        }else if(obj.createTextRange){
                m = obj.createTextRange();
                m.moveStart('character',s);
                m.moveEnd('character',e);
                m.select();
        }
}

/*    Escape function   */
String.prototype.addslashes = function(){
        return this.replace(/(["\\\.\|\[\]\^\*\+\?\$\(\)])/g, '\\$1');
}
String.prototype.trim = function () {
    return this.replace(/^\s*(\S*(\s+\S+)*)\s*$/, "$1");
};
/* --- Escape --- */

/* Offset position from top of the screen */
function curTop(obj){
        toreturn = 0;
        while(obj){
                toreturn += obj.offsetTop;
                obj = obj.offsetParent;
        }
        return toreturn;
}
function curLeft(obj){
        toreturn = 0;
        while(obj){
                toreturn += obj.offsetLeft;
                obj = obj.offsetParent;
        }
        return toreturn;
}
/* ------ End of Offset function ------- */

/* Types Function */

// is a given input a number?
function isNumber(a) {
    return typeof a == 'number' && isFinite(a);
}

/* Object Functions */

function replaceHTML(obj,text){
        while(el = obj.childNodes[0]){
                obj.removeChild(el);
        };
        obj.appendChild(document.createTextNode(text));
}