function $(e){if(typeof e=='string')e=document.getElementById(e);return e};
function trim(str){return str.replace(/^\s+|\s+$/g, '');}
String.prototype.trim = function(str){trim(str)};
String.prototype.endsWith = function(str){return (this.match(str+"$")==str)}
function emp($val){
    return ($val==null || $val==undefined || $val==0 || $val=='');
}

/*login (qmsgl), error (qmsge) ve loading (qmsgo) messages at given object (o)*/
function qmsgl(o, _plc){qmsg.showAtObj(o,__userLoginMsg,3000,_plc);}
function qmsge(o, e, _plc){var m=__errMsg; if(e)__errMsg+=' ('+e+')'; qmsg.showAtObj(o,m,2000,_plc);}
function qmsgo(o, _plc){qmsg.showAtObj(o,__loadingMsg,0,_plc);}

/****************************************************************************/
/* forms                                                                     */
/****************************************************************************/

function gosInArray(v, a){for(k in a){if(a[k]==v) return true;} return false;}
var reUsername=/^([a-zA-Z0-9_-]+)$/;
var reAlphanum=/^([a-zA-Z0-9]+)$/;
var reEmail=/^([a-zA-Z0-9_\.\-\+])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,6})+$/;

function gosVldMsg(o, r){ if($(o)) $(o).style.display=(r)? '':'none'; return r; }
function gosVldErrMsg(o, r){ if($(o)) $(o).style.display=(r)? 'none':''; return r; }
function gosGetRadioVal(o){r="";l=o.length;if(l==undefined) return (o.checked)? o.value:r; for(i=0;i<l;i++) if(o[i].checked) return o[i].value; return r;}
function gosVldMsgClose(oa){for(i in oa) gosVldMsg(oa[i], false);}

/****************************************************************************/
/* tabs                                                                     */
/****************************************************************************/

function gosTab(tabObj, callback){
    liObj = gosFindParentTag(tabObj, 'li');
    if(liObj){
        var sibNodes = liObj.parentNode.childNodes;
        for(var sib in sibNodes) sibNodes[sib].className = '';
        liObj.className='selected';
    }
    if(callback) window[callback]();
    return false;
}



/* favorites *************************************************************** */
// add to favorites, remove from favorites
// checks button's class name to decide to add ro remove
// if it is delfav removes the fame from favorites, else add to fav
function gosFav(btn, eu, cls, divId){
    if(!__userlogin){
        qmsgl(btn,'fav');
    }
    else{
        var url, f;
        btn.disabled = true;
        qmsgo(btn, 'fav');
        if(btn.className=='dfav'){
            url=BASE_PATH+'/ajax/favorites?cmd=del&u='+eu;
            f = function(r){
                var rcode = parseInt(r);
                if(rcode>0){ var div = $(divId); try{div.parentNode.removeChild(div);}catch(e){} qmsg.close();}
                else if(rcode==M_NOAUTH){qmsgl(btn,'fav'); btn.disabled=false;} 
                else{ qmsg.showAtObj(btn, __errMsg + '('+rcode+')', 2000, 'fav'); btn.disabled=false; }
            }
        }
        else{
            url=BASE_PATH+'/ajax/favorites?cmd=add&u='+eu;
            f = function(r){
                rcode = parseInt(r);
                if(rcode==M_NOAUTH){qmsgl(btn,'fav'); btn.disabled=false;}
                else if(rcode<0 && rcode!=M_DUPENT){qmsge(btn, r, 'fav'); btn.disabled=false;}
                else{
                    qmsg.showAtObj(btn, 'Thanks:)', 1000, 'fav');
                    if(cls) btn.className=cls;
                }
            } //end of function
        }
        ajax.get(url, f);
    }
}


/****************************************************************************/
/* game page functions                                                      */
/****************************************************************************/

//add to favorites for game page
function gosFavSingle(btnObj){
    gosFav(btnObj, __favKey, 'gto-favadded');
}

/* star rating  ****************************************************************/
gsrate = new function GosStarRate(){
    var rateText = {'1':'Poor', '2':'Nothing Special', '3':'Worth Playing', '4':'Cool', '5':'Awesome'};
    var alreadyRated=false;
    var givenRate=0;
    var objId='star3';

    this.mover = function(_r){this.showRate(_r);}
    this.mout = function(){this.showOrgRate(__gameRate, ' ');}

    /**
     * rate game
     * @param no    given rate
     * @param cmd
     */
    this.rate = function(_r){
        if(!alreadyRated){
            alreadyRated=true;
            /*if(readCookie('rate_'+__gameUname)!=null){ this.showResult(M_DUPENT); return 1;}*/
            givenRate = _r;
            ajax.get(BASE_PATH+'/ajax/rating?uname='+__gameUname+'&rate='+_r, gsrate.showResult);
            qmsgo($(objId));
        }
    }


    this.showResult = function(_result){
        if(this!=gsrate) gsrate.showResult(_result);
        else{
            _result = parseInt(_result);
            var msg="";
            switch(_result){
                case M_SUC: msg='Thanks!'; alreadyRated=true; break;
                case M_DUPENT: msg='Rated already!'; alreadyRated=true; break;
                case M_NOAUTH: msg='Login or <a href="'+BASE_PATH+'/signup.htm">register</a> to rate'; alreadyRated=true; break;
                default: msg='Oops! Error.';
            }
            this.showRate(givenRate);
            qmsg.showAtObj($(objId), msg, 2000);
        }
    }

    this.showRate = function(_r){
        if(_r>=0) this.showStars(_r);
    }

    this.showOrgRate = function(_r){
        this.showStars(_r, true);
    }

    this.showStars = function(_r, _s){
        if(!alreadyRated){
            if(_r==0) _r=3;
            for(i=0; i<5; i++){
                var c = "ra0";
                if((_r-i)>0) c =((_r-i)==0.5)? "ra1":"ra2";
                if(!_s) c+='m';
                $("star"+(i+1)).className = c;
            }
        }
    }

    /*this.showText = function(_r){ if(!alreadyRated){this.showInfo(rateText[_r+'']);}}
    this.showInfo = function(text){$('ginf-ratetxt').innerHTML=text;}*/
}


/* page components *********************************************************/
/**
 * show or hide game walkthough
 */
function gosShowWalkthrough(){ toggleDisplay('wtdiv'); }


/* tabs & reviews **********************************************************/

/**
 * related games tab
 */
function gosTabRelGames(){
    $('tab-content-rel').style.display = '';
    $('tab-content-rev').style.display = 'none';
    if($('tab-content-excl')) $('tab-content-excl').style.display = 'none';
}

/**
 * reviews tab
 */
var __revTabShown=false ;__revTabShown = false;
function gosTabReviews(){
    $('tab-content-rev').style.display = '';
    $('tab-content-rel').style.display = 'none';
    if($('tab-content-excl')) $('tab-content-excl').style.display = 'none';
    if(!__revTabShown){ 
    	__revTabShown=true; 
//    	ajax.update(__reviewsUrl, 'tab-content-rev');
    }
}

function gosTabReviewsPage(pageNo){
    ajax.update(__reviewsUrl+'&p='+pageNo, 'tab-content-rev');
}


function gosTabExclusive(){
    $('tab-content-rev').style.display = 'none';
    $('tab-content-rel').style.display = 'none';
    $('tab-content-excl').style.display = '';
}

/**
 * post a review
 */
function gosPostReview(formObj){
    if(!__userlogin){
        gosReviewMsg(__userLoginMsg, true);
    }
    else if(formObj.reviewText.value==''){ 
        gosReviewMsg('Your review text is empty!');
    }
    else{
        $('reviewBtn').disabled = true;
        formObj.gameId=__gameUname;
        var url = formObj.getAttribute('action');
        var rfunc = function(r){
            var d=false;
            if(r==M_SUC){ ajax.update(__reviewsUrl, 'tab-content-rev');d=true;}
            else if(r==M_NOAUTH){gosReviewMsg(__userLoginMsg, true);}
            else if(r==M_TOOMUCHREV){gosReviewMsg('So many posts in last few minutes', true);}
            else{ gosReviewMsg('Error in your inputs.', true); }

            $('reviewBtn').disabled = d;
        }
        ajax.post(url, rfunc, ajax.serialize(formObj));
    }
    return false;
}

/**
* show postReview result
*/
function gosReviewMsg(_msg, _e){
    var q=new GosQMsg(); q.showInside($('rev-result'), _msg, 10000);
    if(_e) q.changeClassName('qmsger');
}

/**
 * vote review
 */
function gosVoteRev(rev, vote){
    vote = (vote>0)? 1:-1;
    var sd = $('rvs'+rev); //vote result
    
    var rvtu = $('rvtu'+rev);
    var rvtd = $('rvtd'+rev);
    var rvt = (vote<0)? rvtu:rvtd;

    if(!__userlogin){ qmsgl(rvt); return; }

    //lo.style.display = '';
    rvtu.disabled = true;
    rvtd.disabled = true;
    
    qmsgo(rvt);

    //ajax callback function
    var vfunc = function(r){
            //lo.style.display = 'none';
            rvtu.disabled = false;
            rvtd.disabled = false;
            if(r==M_SUC){
                sd.innerHTML = parseInt(sd.innerHTML)+vote;
                qmsg.showAtObj(rvt, "Thanks:)", 1000);
            }
            else if(r==M_NOAUTH){ qmsgl(rvt); }
            else if(r==M_DUPENT){ qmsg.showAtObj(rvt, 'You have already voted this review.', 2000); }
            else{ qmsg.showAtObj(rvt, __errMsg + "("+parseInt(r)+")", 2000); }
        }
    var url=BASE_PATH+'/do/review?cmd=vote&r='+rev+'&v='+vote+'&k='+__reviewVoteKey;
    ajax.get(url, vfunc);
 }


/****************************************************************************/
/* page object                                                             */
/****************************************************************************/
gpage = new function GosPage(){
   this.PTYPE_NORM = 1;
   this.PTYPE_GAME = 2;

   this.ptype = this.PTYPE_NORM; 
   this.username = null;
   this.login = false;
   this.refr = null; //referrer

   this.init = function(){
       this.updateGameTh();
       
   }

    this.updateGameTh = function(){
        var gthlia = this.findTags('a', 'class', 'gthli');
        //alert(gthlia.length);
        for(var i=0;i<gthlia.length;i++){
            var ao=gthlia[i];
            var un=ao.getAttribute('name')+Math.floor(Math.random()*1000);
            ao.setAttribute('name', un+'dov');
            var dov = document.createElement("div");
            dov.setAttribute("id", un+'dov');
            ao.appendChild(dov);
            dov.className='gover';
            dov.innerHTML='<span>&nbsp;</span>';

            ao.onmouseover=function(){
                var dovx = $(this.getAttribute('name'));
                dovx.style.visibility='visible';
            }
            ao.onmouseout=function(){
                var dovx = $(this.getAttribute('name'));
                dovx.style.visibility='hidden';
            }
        }
    }

    //TODO case shouldnt matter
   this.findTags = function(tag, attr, val){
        var els = document.getElementsByTagName(tag);
        var ret = new Array();
        var rx = new RegExp(val);
        var c=(attr=='class');
        for(var i in els){
            try{if(
                (c && rx.test(els[i].className)) ||
                (!c && rx.test(els[i].getAttribute(attr)))
            ) ret.push(els[i]);}catch(e){}
        }
        return ret; 
   }

//http://www.javascriptkit.com/javatutors/redev2.shtml
   this.addGameToCookie=function(g){
        var gl=readCookie('gl');
        if(emp(gl)){
            gl='/'+g+'#1/';
        }
        else{
            var relast=new RegExp('^.*/'+g+'#[0-9]+/$', 'g');
            if(!gl.match(relast)){
                var re=new RegExp('/'+g+'#[0-9]+/', 'g');
                var gm=gl.match(re);
                if(!emp(gm)){
                    gm+='';
                    gm=gm.substring(1, gm.length-1);
                    var gs=gm.split('#');
                    gs[1]++;
                    gm=gs[0]+"#"+gs[1];
                    gl=gl.replace(re,'/')+gm+'/';
                }
                else{
                    gl+=g+'#1/';
                }
            }

            while(gl.length>400){
                gl=gl.substring(gl.indexOf('/', 1));
            }
        }
        createCookie('gl', gl, 360);
   }
   
}


/****************************************************************************/
/* flash object
*  v1.2                                                                     */
/****************************************************************************/

GosFlashObject = function (_foid){
    //private //////////////////////////////////////////////////
    var S_NOTLOADED = 1;
    var S_LOADING = 2;
    var S_ACTIVE = 3;
    var w=-1;
    var h=-1;
    var foid = _foid; //flash object id
    var s = S_NOTLOADED; //status

    //public //////////////////////////////////////////////////
    this.fo = null; //the flash object


    //functions //////////////////////////////////////////////
    /**
     * find flash object - cross browser
     * look at http://blog.codefidelity.com/?p=14
     * @param foid  DOM id of flash object
     * @return      flash object. null if no object is found
     */
    this.findObj = function(_foid){
       if(_foid && typeof(_foid)=='string') foid=_foid;
       else if(_foid){this.fo=_foid;return _foid;}

       if (window.document[foid]) return window.document[foid];
       if (navigator.appName.indexOf("Microsoft Internet")==-1)
          if (document.embeds && document.embeds[foid]) return document.embeds[foid];
       else return $(foid);
       return null;
    }
  
    this.size = function(_w, _h){if(s==S_ACTIVE){if(_w>=0) w=_w; if(_h>=0) h=_h;} return this;}
    this.resize = function(_w, _h){if(s==S_ACTIVE){this.size(_w, _h); this.fo.width = w; this.fo.height = h;} return this;}
    /* f: zoom factor. positive(1) to zoom in, negative (-1) to zoom out.
    *                  factor size also changes the zoom factor */
    this.zoom = function(_f){if(s==S_ACTIVE){zf = 1 + _f * 0.1; this.resize(w*zf, h*zf);}return this;}
    this.reload = function(){
        if(s==S_ACTIVE){
            tfoid = this.fo.getAttribute("id");
            var fop = this.fo.parentNode;
            var temp=fop.innerHTML;
            fop.innerHTML='';
            fop.innerHTML=temp;
            this.fo = this.findObj(tfoid);
        }
    }

    //init
    this.init = function(){
        this.fo = this.findObj(foid);
        if(this.fo){
          w=this.fo.width;
          h=this.fo.height;
        }
    }

    this.init();

    // progress bar /////////////////////////////////////////
    this.HORIZONTAL = 1;
    this.VERTICAL = 2;

    this.pbar = null;
    this.pinf = null;
    this.pwrp = null;
    this.pmaxs = 200; //max size
    this.pdir = this.HORIZONTAL;

    var pintv = null;

    this.startProgress = function(_pbid, _pdir, _maxs){
        s=S_LOADING;
        if(_pbid){
            this.pbar=$(_pbid);
            this.pinf=$(_pbid+'-info');
            this.pwrp=$(_pbid+'-wrp');
        }
        this.pdir=(_pdir)? _pdir:this.VERTICAL;
        this.pmaxs=(_maxs)? _maxs:this.pmaxs;
        var self=this;
        if(this.pbar) pintv = setInterval(function(){return self.redrawProgress()}, 100);
        else s=S_ACTIVE;
        return this;
    }

    this.redrawProgress=function(){
        var pxloaded;
        if(pxloaded = this.fo.PercentLoaded()){
            newSize = pxloaded * this.pmaxs / 100;
            this.pinf.innerHTML = 'Loading: '+pxloaded+'%';
            if(this.pdir==this.VERTICAL) this.pbar.style.width = newSize+'px';
            else this.pbar.style.height = newSize+'px';

            if(newSize>=this.pmaxs){
                s=S_ACTIVE;
                window.clearInterval(pintv);
                this.pwrp.innerHTML='';
                //this.pwrp.parentNode.removeChild(this.pwrp);
           }
        }
    }

    this.activeGame=function(){
        s=S_ACTIVE;
    }

}


/****************************************************************************/
/* quick message box                                                        */
/****************************************************************************/

//quick message
GosQMsg = function(){
    //private properties
    var S_VISIBLE=1;
    var S_HIDDEN=2;
    var S_HIDING=3;
    var START_OPACITY=80;
    var hideIntvId;
    var hideTimeoutId;
    var status=S_HIDDEN;
    var _self=this;

    //public properties
    this.qbox=null;
    this.opacity=START_OPACITY;
    this.w=-1;
    this.h=-1;
    this.className="qmsg";
    this.divId="mbox"+Math.floor(Math.random()*10000);;

    //use showBefore, showafter or showInside instead of this
    this.showInline = function(_obj, _msg, _place, _duration){
        if(typeof(_obj) == 'string') _obj = $(_obj);
        this.build(_msg, _duration);
        document.body.removeChild(this.qbox);
        switch(_place){
            case 0: //inside
                _obj.innerHTML='';
                _obj.appendChild(this.qbox);
                break;
            case -1: //before
                _obj.parentNode.insertBefore(this.qbox, _obj);
                break;
            case 1: //after
                if(_obj.nextSibling) _obj.parentNode.insertBefore(this.qbox, _obj.nextSibling);
                else _obj.parentNode.appendChild(this.qbox);
                break;
        }
        return this;
    }

    this.showBefore = function(_obj, _msg, _duration){ return this.showInline(_obj, _msg, -1, _duration);}
    this.showAfter = function(_obj, _msg, _duration){ return this.showInline(_obj, _msg, 1, _duration);}
    this.showInside = function(_obj, _msg, _duration){ return this.showInline(_obj, _msg, 0, _duration);}

    this.showAtLoc = function(_x, _y, _msg, _duration){
        this.build(_msg, _duration);
        this.qbox.style.position='absolute';
        tw = (this.w>0)? this.w:this.qbox.offsetWidth;
        th = (this.h>0)? this.h:this.qbox.offsetHeight;
        this.locate(_x-tw/2, _y-th/2);
        return this;
    }

    //show  under a object
    //TODO plc: placement: 'top', 'left', 'right', 'over', 'bottom'
    //bottom is default
    this.showAtObj = function(_obj, _msg, _duration, _plc){
        this.build(_msg, _duration);
        this.qbox.style.position='absolute';
        var loc = gosFindObjLoc(_obj);
        var tw = (this.w>0)? this.w:this.qbox.offsetWidth;
        var th = (this.h>0)? this.h:this.qbox.offsetHeight;
        if(_plc=='fav'){
            loc.x += (_obj.offsetWidth - tw)/2;
            loc.y += 28;
        }
        else if(_plc=='over'){
            loc.x += (_obj.offsetWidth - tw)/2;
            loc.y += (_obj.offsetHeight - th)/2;
        }
        else{
            loc.x += (_obj.offsetWidth - tw)/2;
            loc.y += _obj.offsetHeight+4;
        }
        this.locate(loc.x, loc.y);
        return this;
    }

    //build the message object
    this.build = function(_msg, _duration){
        //close older ones.
        if(status==S_VISIBLE){ clearTimeout(hideTimeoutId); this.close(); }
        else if(status==S_HIDING){ clearInterval(hideIntvId); this.close(); }

        status=S_VISIBLE;
        this.opacity=START_OPACITY;

        this.qbox = document.createElement("div");
        this.qbox.setAttribute("id", this.divId);
        document.body.appendChild(this.qbox);

        this.qbox.innerHTML = _msg;
        this.qbox.className = this.className;

        this.setOpacity();
        //this.qbox.style.zIndex=2000;

        if(_duration>0){
            hideTimeoutId = setTimeout(this.hide, _duration);
        }
        return this;
    }

    //hide it (calls fadeout function)
    this.hide = function(){
        hideIntvId = setInterval(_self.fadeout, 50);
        return _self;
    }

    //fadeout
    this.fadeout = function(){
        //alert($self);
        status==S_HIDING;
        _self.opacity -= 5;
        if(_self.opacity<6){
            clearInterval(hideIntvId);
            _self.close();
        }
        else{
            _self.setOpacity();
        }
        return _self;
    }

    //remove the qbox
    this.close = function(){
        status==S_HIDDEN
        try{this.qbox.parentNode.removeChild(this.qbox);}catch(e){}
        this.qbox = null;
        return this;
    }

    this.setOpacity = function()    { if(this.qbox){this.qbox.style.opacity = this.opacity*0.01; this.qbox.style.filter = 'alpha(opacity='+this.opacity+')';} return this; }
    this.changeOpacity = function(o){ this.opacity = o; setOpacity(); }
    this.locate=function(_x, _y)    { if(this.qbox){this.qbox.style.position='absolute';this.qbox.style.left = _x+'px'; this.qbox.style.top = _y+'px';} return this; }
    this.size=function(_w, _h)      { this.w=_w; this.h=_h; if(this.w>=0 && this.qbox) this.qbox.style.width=this.w+"px"; if(this.h>=0 && this.qbox) this.qbox.style.height=this.h+"px"; return this; }
    this.resetSize=function()       { this.size(0,0);}
    this.changeMsg=function(_msg)   { if(this.qbox) this.qbox.innerHTML = _msg; return this;}
    this.changeClassName = function(c) { this.className = c; if(this.qbox) this.qbox.className = this.className; return this;}
    this.setDivId = function(s) { this.divId = s; if(this.qbox){ this.qbox.removeAttribute("id"); this.qbox.setAttribute("id", this.divId);} return this;}
}

//use this as a singleton object
//this prevents opening more than 1 box at the same time
var qmsg = new GosQMsg();



/****************************************************************************/
/* common functions                                                         */
/****************************************************************************/

/**
 * bookmark page
 **/
function bookmarkPage(url, title) {
    //firefox
    if (window.sidebar) {
        window.sidebar.addPanel(title, url, "");
    //ie
    } else if( window.external ) {
        window.external.AddFavorite( url, title); }
    //opera
    else if(window.opera && window.print) {
        	var elem = document.createElement('a');
            elem.setAttribute('href',url);
            elem.setAttribute('title',title);
            elem.setAttribute('rel','sidebar');
            elem.click();
    }

}

function gosFindParentTag(obj, tag){
    tag = tag.toLowerCase();
    do{
        obj=obj.parentNode;
        if(obj && obj.tagName.toLowerCase()==tag) return obj;
    }while(obj)
    return null;
}

//http://blog.firetree.net/2005/07/04/javascript-find-position/
//by Peter-Paul Koch & Alex Tingle
function gosFindObjLoc(_obj){
    var loc=new Object();
    loc.x = 0; loc.y = 0;
    if(_obj.offsetParent){
        do{
          loc.x += _obj.offsetLeft;
          loc.y += _obj.offsetTop;
          _obj = _obj.offsetParent;
        }while(_obj.offsetParent);
    }
    else{
        if(_obj.x) loc.x += _obj.x;
        if(_obj.y) loc.y += _obj.y;
    }
    return loc;
}

/*
 * find referrer. return null if no referrer exists
 * */
function gosFindRefr(){
    refr=document.referrer;
    if (refr != ''){var e=new RegExp("(https|http|ftp):\/\/"); host = refr.replace(e, "");host = host.replace(/\/.*/, "");return host;}
    return null;
}

function toggleDisplay(o){o=$(o); o.style.display=(o.style.display=='none')? '':'none'; }


/************************************************************************** */
/* smooth scrolling                                                         */
/************************************************************************** */
var ss=new function(){
    var intvo;
    var o;
    var desty;
    this.scroll=function(_o){
        o=$(_o)
        var loc=gosFindObjLoc(o);
        desty = loc.y;
        intvo = setInterval('ss.intv()',10);
    }
    this.intv=function(){
        var y1=this.getTopOff();
        var am=(desty-y1)*.15;
        if(am>30) am=30; if(am<3) am=3;
        window.scrollTo(0, y1 + am);
        var y2=this.getTopOff();
        if(y1==y2 || y2>desty){
            clearInterval(intvo);
            window.scrollTo(0, desty);
        }
    }

    this.getTopOff= function() {
        if (document.body && document.body.scrollTop)
          return document.body.scrollTop;
        if (document.documentElement && document.documentElement.scrollTop)
          return document.documentElement.scrollTop;
        if (window.pageYOffset)
          return window.pageYOffset;
        return 0;
    }
}


/************************************************************************** */
/* cookie functions: http://www.quirksmode.org/js/cookies.html              */
/************************************************************************** */
function createCookie(name,value,days) {if (days) {var date = new Date();date.setTime(date.getTime()+(days*24*60*60*1000));var expires = "; expires="+date.toGMTString();}else var expires = "";document.cookie = name+"="+value+expires+"; path=/";}
function readCookie(name) {var nameEQ = name + "=";var ca = document.cookie.split(';');for(var i=0;i < ca.length;i++) {var c = ca[i]; while (c.charAt(0)==' ') c = c.substring(1,c.length);if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);}return null;}
function eraseCookie(name) {createCookie(name,"",-1);}




function collect(a,f){var n=[];for(var i=0;i<a.length;i++){var v=f(a[i]);if(v!=null)n.push(v)}return n};

ajax={};
ajax.x=function(){try{return new ActiveXObject('Msxml2.XMLHTTP')}catch(e){try{return new ActiveXObject('Microsoft.XMLHTTP')}catch(e){return new XMLHttpRequest()}}};
ajax.serialize=function(f){var g=function(n){return f.getElementsByTagName(n)};var nv=function(e){if(e.name)return encodeURIComponent(e.name)+'='+encodeURIComponent(e.value);else return ''};var i=collect(g('input'),function(i){if((i.type!='radio'&&i.type!='checkbox')||i.checked)return nv(i)});var s=collect(g('select'),nv);var t=collect(g('textarea'),nv);return i.concat(s).concat(t).join('&');};
ajax.send=function(u,f,m,a){var x=ajax.x();x.open(m,u,true);x.onreadystatechange=function(){if(x.readyState==4)f(x.responseText)};if(m=='POST')x.setRequestHeader('Content-type','application/x-www-form-urlencoded');x.send(a)};
ajax.get=function(url,func){ajax.send(url,func,'GET')};
ajax.gets=function(url){var x=ajax.x();x.open('GET',url,false);x.send(null);return x.responseText};
ajax.post=function(url,func,args){ajax.send(url,func,'POST',args)};
ajax.update=function(url,elm){var e=$(elm);var f=function(r){e.innerHTML=r};ajax.get(url,f)};
ajax.submit=function(url,elm,frm){var e=$(elm);var f=function(r){e.innerHTML=r};ajax.post(url,f,ajax.serialize(frm))};