/*  
 *  Vunet.js JavaScript Library v1.2
 *  http://www.vunet.us/lib/vunet/api.html or see HOWTO section below
 *  (c) 2009 Vadym Ustymenko
 *  Vunet.js is freely distributable under the terms of an MIT-style license.
 */
var vunet = {
        Version : 1.3,
        Browser : {
                isIE: !!(window.attachEvent && !window.opera),
                isIE6: !!(window.attachEvent && !window.opera && !window.XMLHttpRequest),
                isOpera: !!window.opera,
                isSafari: navigator.userAgent.toLowerCase().indexOf('safari') > -1,
                isGecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
                isDOM: !!document.getElementById        
        },
        /*
    * CROSS-BROWSER XML HTTP REQUEST: 
    * howto: new vunet.AJAX.Loader('GET','index.html?id=1',true,handleResponse);
    * response: function handleResponse(){alert(this.req.responseText);}
    * Parameters:
    *     method: POST or GET
    *     url: local URL
    *     asynch: true or false
    *     respHandle: function name to handle response
    *     5th element: parameters for POST method
    *     6th element: error function handler (optional)
    */
    AJAX : {
        READY_STATE_UNINITIALIZED : 0,
        READY_STATE_LOADING : 1,
        READY_STATE_LOADED : 2,
        READY_STATE_INTERACTIVE : 3,
        READY_STATE_COMPLETE : 4,       
        Loader : function(method,url,asynch,respHandle,params,onerror){
                    this.method =     method;
                    this.url =        url;
                    this.asynch =     asynch; 
                    this.respHandle = respHandle;
                    this.params =     params; 
                    this.onerror =    (onerror) ? onerror : this.defaultError;
                    this.req =        null;
                    this.loadXMLDoc(method,url,asynch,params);
            }
    },
        loadScript: function(src) {
        if(vunet.Browser.isIE){//IE crash fix
                document.write('<script type="text/javascript" src="'+src+'"><\/script>');
        }else{
                try{
                                var script = document.createElement("script");
                                script.src = src;
                                script.type = "text/javascript";
                                script.language = "JavaScript";
                                //script.defer = true;
                                var heads = document.getElementsByTagName("head");
                                heads[0].appendChild(script);
                        }catch(e){//inserting via DOM fails in Safari 2.0
                                document.write('<script type="text/javascript" src="'+src+'"><\/script>');
                        }
        }
        },
    $ : function(id){
        return document.getElementById(id);
    },
        getHTML : function(tagName, id){
                if(id != null){
                        var obj = this.$(id);
                        if(obj) return obj;
                }
                var obj = document.createElement(tagName);
                if(id != null) obj.id = id;
                return obj;
        },
        removeHTML : function(id){
                var obj = this.$(id);
                if(obj) try{ obj.parentNode.removeChild(obj); }catch(e){}
        },
        getURLParameter : function(paramName, urlStr){
                paramName = paramName.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
                var regexS = "[\\?&]"+paramName+"=([^&#]*)";
                var regex = new RegExp(regexS);
                var myURL = (urlStr) ? urlStr : window.location.href;
                var results = regex.exec(myURL);
                if(results == null) return "";
                        else return results[1];
        },
        util : {
                getQueryString : function(frm){
                    var str = "";
                    var elsLen = frm.elements.length;
                    for(var i=0; i<elsLen; i++){
                        var el = frm.elements[i];
                                var and = (i != elsLen - 1) ? "&" : "";
                                if(el.type == "checkbox" || el.type == "radio"){
                                        if(el.checked == true) str += el.name+"="+encodeURIComponent(el.value)+and;
                                }else{
                                        str += el.name+"="+encodeURIComponent(el.value)+and;
                                }
                    }
                        return str;
                },
                getPageDims : function(){
                        if (typeof window.innerWidth != 'undefined'){
                        return [window.innerWidth, window.innerHeight];
                        }else if (typeof document.documentElement != 'undefined' && 
                                          typeof document.documentElement.clientWidth != 'undefined' && 
                                          document.documentElement.clientWidth != 0){
                                          //IE6 in standards compliant mode (with valid doctype)
                                return [document.documentElement.clientWidth, document.documentElement.clientHeight];
                        }else{
                        return [document.getElementsByTagName('body')[0].clientWidth, 
                                        document.getElementsByTagName('body')[0].clientHeight];
                        }
                },
                posLeft : function(){
                return typeof window.pageXOffset != 'undefined' ?  window.pageXOffset : document.documentElement
                                 && document.documentElement.scrollLeft ? document.documentElement.scrollLeft : 
                                 document.body.scrollLeft ? document.body.scrollLeft : 0;
            },
            posTop : function(){
                return typeof window.pageYOffset != 'undefined' ?  window.pageYOffset : document.documentElement
                                 && document.documentElement.scrollTop ? document.documentElement.scrollTop : 
                                 document.body.scrollTop ? document.body.scrollTop : 0;
                },
                posRight : function(){ return vunet.util.posLeft() + vunet.util.getPageDims()[0]; },
                posBottom : function(){ this.util.posTop() + vunet.util.getPageDims()[1]; },
                findPosition : function(obj){
                        var curLeft = curTop = 0;
                        if(obj.offsetParent){
                                curLeft = obj.offsetLeft;
                                curTop = obj.offsetTop;
                                while(obj = obj.offsetParent){
                                        curLeft += obj.offsetLeft;
                                        curTop += obj.offsetTop;
                                }
                        }
                        return [curLeft,curTop]; 
                },
                getIframePad : function(topObj){/*IE6 select overlap fix*/
                        var iframe = vunet.getHTML("IFRAME");           
                iframe.src = "#";
                        iframe.frameborder = "0";
                iframe.style.position = "absolute";
                        iframe.style.zIndex = (topObj.style.zIndex) ? parseInt(topObj.style.zIndex) - 1 : 0;
                        iframe.style.filter = "alpha(opacity=0)";
                        return iframe;
                },
                getCloseLink : function(){
                        var span = vunet.getHTML("span");
                        span = vunet.util.applyCSS(span,vunet.CSS.CLOSE);
                        span.innerHTML = "X";
                        return span;
                },      
                emptyNode : function(node){
                        while(node.firstChild){
                                node.removeChild(node.firstChild);
                        }
                },
                clone : function(obj){
                        if(typeof(obj) != "object" || obj==null) return obj;
                    var newObj = new Object();
                        for(var i in obj){
                                newObj[i] = obj[i];
                        }
                        return newObj;
                },
                applyCSS : function(obj,styleObj){
                        for (var prop in styleObj){
                                if(typeof obj.style[prop] != "undefined") obj.style[prop] = styleObj[prop];                             
                        }
                        return obj;
                },
                sleep : function(ms){
                        var dt = new Date();
                        var dtNow = null;
                        do { dtNow = new Date(); }
                        while(dtNow - dt < ms);
                },
                stringToJSON : function(str){
                                return !(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test(str.replace(/"(\\.|[^"\\])*"/g, ''))) && eval('(' + str + ')');
                }
        },              
        addEvent : function(obj, type, fn) {
        if (obj.addEventListener){
                obj.addEventListener(type, fn, false);
        }else if(obj.attachEvent){
                obj.attachEvent('on' + type, function() { return fn.apply(obj, new Array(window.event));});
          }
        },
        eventPool : null,
        addEvent : function(obj, type, fn) {
                if(this.eventPool == null){
                         this.eventPool = [];
                         vunet.addEvent(window, "unload", this.clearEvents);
                }
                if (typeof obj == "string") obj = this.$(obj);          
                if (obj.addEventListener){
                        obj.addEventListener(type, fn, false);
                        this.eventPool.push({obj: obj, type: type, fn: fn});
                }else if(obj.attachEvent){
                        obj.attachEvent('on' + type, function() { return fn.apply(obj, new Array(window.event));});
                        this.eventPool.push({obj: obj, type: type, fn: fn});
                }
        },
        clearEvents : function(){
                if(vunet.eventPool != null && vunet.eventPool.length>0){
                        for (var i = 0; i < vunet.eventPool.length; i++) {                      
                                var el = vunet.eventPool[i];
                                if (el.obj.removeEventListener) el.obj.removeEventListener(el.type, el.fn, false);
                    else if (el.obj.detachEvent) el.obj.detachEvent("on" + el.type, el.fn);
                        }
                }
                vunet.eventPool = null;
        },
        Cookie : {
                name : "",
                value : "",
                domain : "",
                path : "",
                days : "",
                exp : ""
        },      
        setCookie : function(name,val,days,domain,path){
                this.Cookie.name        = name;
                this.Cookie.value       = val;
                this.Cookie.days        = days;
                this.Cookie.domain      = (domain) ? domain : "";
                this.Cookie.path        = (path) ? path : "/";
                var cookedDate = new Date();
                cookedDate.setTime(cookedDate.getTime()+(days*24*60*60*1000));
                this.Cookie.exp = cookedDate.toGMTString();
                this.saveCookie();      
        },
        saveCookie : function(){
                document.cookie = this.Cookie.name+"="+this.Cookie.value+
                                                "; expires="+this.Cookie.exp+
                                                "; path="+this.Cookie.path+""+
                                                ((this.Cookie.domain!="")?"; domain="+this.Cookie.domain:"");
        },
        getCookie : function(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;
        },
        see: function(val) {
                var box = this.$("VunetDebugger");
                if(!box){
                        box = this.getHTML("div");
                        box.id = "VunetDebugger";
                        var that = this;
                        box.ondblclick = function(){ that.removeHTML("VunetDebugger"); };
                        box = this.util.applyCSS(box,this.CSS.DEBUGGER);                
                        var closeLink = this.util.getCloseLink();
                        closeLink.onclick = function(){ that.removeHTML("VunetDebugger"); };
                        box.appendChild(closeLink);
                        var header = this.getHTML("div");
                        header = this.util.applyCSS(header,this.CSS.DEBUGGER_HEADER);
                        header.innerHTML = "LOG";
                        box.appendChild(header);                
                        document.body.appendChild(box);
                }
                try{
                        val = val.replace(/<br>/g,"\n");
                        val = val.replace(/</g,"&lt;");
                        val = val.replace(/>/g,"&gt;");
                        val = val.replace(/\n/g,"<br>");
                }catch(err){alert(err)/*bad type*/}
                box.innerHTML += "<hr style='border:1px dashed white'>" + val;
        },
        seeObject : function(obj){
                var resp = "Object: \n";
                for(var i in obj){
                        resp+=" "+i+"="+obj[i]+"\n";
                } 
                return resp;
        },
        fadePage : function(w,h,content){
                var div = this.getHTML("div","fadedBackground");        
                div = this.util.applyCSS(div,this.CSS.FADER);
                div.innerHTML = "&nbsp;";//filler fix
                var that = this;
                div.onclick = function(){that.unfadePage();}
                this.fader = div;
                document.body.style.height = "100%";//keep full height
                document.body.firstChild.parentNode.insertBefore(this.fader, document.body.firstChild);
                //IE8 fix
				var ieVer = -1;
				var ua = navigator.userAgent;
				var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
				if (re.exec(ua) != null) ieVer = parseFloat(RegExp.$1);
				
				if(this.Browser.isIE && ieVer<8.0){  
                        this.fader.style.position = "absolute";
                        this.fader.style.setExpression("top","document.all['fadedBackground'].offsetParent.scrollTop");
                        if(this.Browser.isIE6){
                                var faderPad = this.util.getIframePad(this.fader);
                                faderPad.id = "fadedPad";
                        faderPad.style.left = this.fader.style.left;
                        faderPad.style.top = this.fader.style.top;
                        faderPad.style.width = this.fader.style.width;
                        faderPad.style.height = this.fader.style.height;
                                this.faderPad = faderPad;
                    document.body.firstChild.parentNode.insertBefore(this.faderPad, document.body.firstChild.nextSibling);
                    //this.faderPad.style.setExpression("top","document.all['fadedPad'].offsetParent.scrollTop");
                        }
                }else{
                        this.fader.style.position = "fixed";
                }
                if(arguments.length>0){
                        var dims = this.util.getPageDims();
                        var height = parseInt(dims[1]*0.8);
                        var width = parseInt(dims[0]*0.8);
                        var top = (dims[1] - height)/2;
                        var left = (dims[0] - width)/2;
                        if(w){ width = w;  left = parseInt((dims[0] - w)/2); }
                        if(h){ height = h; top = parseInt((dims[1] - h)/2); }
                        left = (left<10)?10:left;
                        top = (top<10)?10:top;
                        var container = this.getHTML("div","fadedContainer");
                        container = this.util.applyCSS(container,this.CSS.FADER_CONTAINER);
                        container.style.top = (this.util.posTop()+top)+"px";
                        container.style.left = left+"px";
                        container.style.width = width+"px";
                        container.style.height = height+"px";
                        if(typeof content == "string"){container.innerHTML = content;
                        }else if(typeof content == "object"){container.appendChild(content);}
                        this.faderContent = container;
                        document.body.firstChild.parentNode.insertBefore(this.faderContent, document.body.firstChild);
                }
        },
    unfadePage : function(){
                if(this.fader){document.body.removeChild(this.fader);this.fader=null;}
                if(this.faderPad){document.body.removeChild(this.faderPad);this.faderPad=null;}
                if(this.faderContent){document.body.removeChild(this.faderContent);this.faderContent=null;}
        },
    tooltip : false,
    tooltipShadow : false,
    tooltipPad : false,
    showTooltip : function(e,ttTxt){
                var shadowSize = 4;
                var tooltipMaxWidth = 200;
                var tooltipMinWidth = 100;
        var bodyWidth = Math.max(document.body.clientWidth,document.documentElement.clientWidth) - 20;
        if(!this.tooltip){
            var div = vunet.getHTML("div");
            div.id = "tooltip";
            div = this.util.applyCSS(div,this.CSS.TOOL_TIP);
                        this.tooltip = div;
                        var shadow = vunet.getHTML("div");
                        shadow.id = "tooltipShadow";
                        shadow = this.util.applyCSS(shadow,this.CSS.TOOL_TIP_SHADOW); 
                        shadow.style.zIndex = parseInt(div.style.zIndex) - 1;
                        this.tooltipShadow = shadow;
            document.body.appendChild(this.tooltip);
            document.body.appendChild(this.tooltipShadow);   
                if(this.Browser.isIE6){
                                this.tooltipPad = this.util.getIframePad(this.tooltipShadow);
                document.body.appendChild(this.tooltipPad);
            }
        }  
        this.tooltip.style.display = "block";
        this.tooltipShadow.style.display = "block";
        if(this.Browser.isIE6)this.tooltipPad.style.display = "block";      
        var st = Math.max(document.body.scrollTop,document.documentElement.scrollTop);
        if(this.Browser.isSafari) st = 0;
        var leftPos = e.clientX + 10;     
        this.tooltip.style.width = null;//reset
        this.tooltip.innerHTML = ttTxt;
        this.tooltip.style.left = leftPos + "px";
        this.tooltip.style.top = e.clientY + 10 + st + "px";      
        this.tooltipShadow.style.left =  leftPos + shadowSize + "px";
        this.tooltipShadow.style.top = e.clientY + 10 + st + shadowSize + "px";      
        if(this.tooltip.offsetWidth > tooltipMaxWidth){/* Exceeding max width? */
                this.tooltip.style.width = tooltipMaxWidth + 'px';
        }    
        var tooltipWidth = this.tooltip.offsetWidth;       
        if(tooltipWidth < tooltipMinWidth) tooltipWidth = tooltipMinWidth;     
        this.tooltip.style.width = tooltipWidth + "px";
        this.tooltipShadow.style.width = this.tooltip.offsetWidth + "px";
        this.tooltipShadow.style.height = this.tooltip.offsetHeight + "px";           
        if((leftPos + tooltipWidth) > bodyWidth){
                this.tooltip.style.left = (this.tooltipShadow.style.left.replace("px","") - ((leftPos + tooltipWidth)-bodyWidth)) + "px";
                this.tooltipShadow.style.left = (this.tooltipShadow.style.left.replace("px","") - ((leftPos + tooltipWidth)-bodyWidth) + shadowSize) + "px";
        }  
        if(this.Browser.isIE6){
                this.tooltipPad.style.left = this.tooltip.style.left;
                this.tooltipPad.style.top = this.tooltip.style.top;
                this.tooltipPad.style.width = this.tooltip.offsetWidth + "px";
                this.tooltipPad.style.height = this.tooltip.offsetHeight + "px";
        }        
    },
    hideTooltip : function (){
        this.tooltip.style.display="none";
        this.tooltipShadow.style.display="none";       
        if(this.Browser.isIE6)this.tooltipPad.style.display="none";       
    },
        fx : {
                s : 33,
                fadeOut : function(el,obj){
                        var s = (typeof obj == "object" && typeof obj.speed != "undefined" && isNaN(obj.speed) == false) ? obj.speed*100 : vunet.fx.s;
                        if(typeof el == 'string') el = vunet.$(el);
                        vunet.fx.setOp(el,1);
                        setTimeout("vunet.fx.anim('" + el.id + "',false,"+s+")", s);
                },
                fadeIn : function(el,obj){
                        var s = (typeof obj == "object" && typeof obj.speed != "undefined" && isNaN(obj.speed) == false) ? obj.speed*100 : vunet.fx.s;
                        if(typeof el == 'string') el = vunet.$(el);
                        vunet.fx.setOp(el,0);
                        setTimeout("vunet.fx.anim('" + el.id + "',true,"+s+")", s);
                },
                anim : function(el,grow,s){
                        if(typeof el == 'string') el = vunet.$(el);
                        var op = parseFloat(el.style.opacity);
                        if(grow==true){
                                op += 0.1;
                                if(op>1)return;
                        }else{
                                op -= 0.1;
                                if(op<0)return;
                        }
                        vunet.fx.setOp(el,op);
                        setTimeout("vunet.fx.anim('" + el.id + "'," + grow + ","+s+")", s);
                },
                setOp : function(el,n){
                        el.style.opacity = n;
                el.style.filter = 'alpha(opacity = ' + (n*100) + ')';
                }
        },
        CSS : {
                DEBUGGER : {
                        position : "absolute",
                        top : "50px",
                        right : "5px",
                        width : "40%",
                        zIndex : "10001",//more than fader
                        border : "1px solid red",
                        backgroundColor : "black",
                        overflow : "auto",
                        color : "white",
                        filter : "alpha(opacity=85)",
                        opacity : ".85",
                        MozOpacity : ".85"
                },
                DEBUGGER_HEADER : {
                        textAlign : "center",
                        color : "red",
                        fontWeight : "bolder"
                },
                CLOSE : {
                        position : "absolute",
                        width : "18px",
                        height : "18px",
                        font : "bold 16px verdana",
                        color : "red",
                        top : "0px",
                        right : "0px",
                        cursor : "pointer"
                },
                FADER : {
                        height : "100%",
                        width : "100%",
                        top : "0px",
                        left : "0px",
                        backgroundColor : "#000",
                        zIndex : "10000",//check with debugger
                        filter : "alpha(opacity=50)",
                        opacity : ".50",
                        MozOpacity : ".50"
                },
                FADER_CONTAINER : {
                        position : "absolute",
                        backgroundColor : "#fff",
                        border : "5px solid #666",
                        padding : "5px",
                        zIndex : "10001",
                        height : "auto"//fix height
                },
                TOOL_TIP : {
                        backgroundColor : "lightyellow",
            border : "1px solid #000",
            position : "absolute",
            display : "none",
            zIndex : "10002",
            fontSize : "0.9em",
            fontFamily : "arial",
            padding : "2px",
            mozBorderRadius : "6px",
            padding : "2px"
                },
                TOOL_TIP_SHADOW : {
                        position : "absolute",
            backgroundColor : "#555",
            display : "none",
            filter : "alpha(opacity=65)",
            opacity : ".65",
            MozOpacity : ".65",
            mozBorderRadius : "6px"
                }               
        }
};

vunet.AJAX.Loader.prototype = {
          loadXMLDoc:function(method,url,asynch,params){              
              if(window.XMLHttpRequest){//Mozilla-based browsers
                  this.req = new XMLHttpRequest();      
              }else if(window.ActiveXObject){//Internet Explorer
                  this.req = new ActiveXObject("Msxml2.XMLHTTP");
                  if(!this.req){
                      this.req = new ActiveXObject("Microsoft.XMLHTTP");
                  }
              }       
              if(this.req){//test for null request
                  if(method.toLowerCase() != "post"){
                      this.initReq(method,url,asynch);
                  }else{//POSTed data
                      var args = arguments[3];
                      if(args != null && args.length > 0){
                          this.initReq(method,url,asynch,args);
                      }
                  }
              }else{
                  alert("Your browser does not permit the use of all "+
                        "of this application's features!");
              }   
            },
            initReq:function(method,url,asynch,args){       
              try{
                  //Specify the function which will handle HTTP response
                  var loader = this;
                  this.req.onreadystatechange = function(){                               
                      loader.onReadyState.call(loader);
                  }
                  this.req.open(method,url,asynch);
                  //POSTed data
                  if(method.toLowerCase() == "post"){
                      this.req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
                      this.req.send(arguments[3]);   
                  }else{
                      this.req.send(null);
                  }
              }catch (errv){
                  alert("The application cannot contact the server at the moment. Error details: "+errv.message);
              }       
            },
            onReadyState:function(){
              var req = this.req;
              var ready = req.readyState;
              if(ready == vunet.AJAX.READY_STATE_COMPLETE){       
                   var httpStatus = req.status;
                   if(httpStatus == 200 || httpStatus == 0){
                       this.respHandle.call(this);              
                   }else{
                       this.onerror.call(this);
                   }
              }
          },
          defaultError:function(){
              alert("error fetching data!"
              +"\n\nreadyState:"+this.req.readyState
              +"\nstatus: "+this.req.status
              +"\nheaders: "+this.req.getAllResponseHeaders());
          }
}
Number.prototype.toDecimals = function(n){
    n = (isNaN(n))? 2 : n;
    var nT = Math.pow(10,n);
    function pad(s){
        s = s||'.';
        return (s.length>n)? s : pad(s+'0');
    }
    return (isNaN(this)) ? this : (new String(Math.round(this*nT)/nT)).replace(/(\.\d*)?$/,pad);
}
String.prototype.trim = function(){
        return (this.replace(/^\s+/,'').replace(/\s+$/,''));
}
String.prototype.endsWith = function(str){
        return (this.length - str.length) == this.lastIndexOf(str);
}
Array.prototype.removeArrayItems = function(itemsToRemove){alert("test")
        var j;
        for(var i=0; i<itemsToRemove.length; i++){
                j=0;
                while(j<this.length){
                        if(this[j]==itemsToRemove[i]){
                                this.splice(j,1);
                        }else{
                                j++;
                        }
                }
        }
}


/* HOWTO
 * Detect browser:      vunet.Browser.isIE
 *                                      vunet.Browser.isIE6
 *                                      vunet.Browser.isOpera 
 *                                      vunet.Browser.isSafari
 *                                      vunet.Browser.isGecko
 *                                      vunet.Browser.isDOM
 * Format querystring with all form elements:
 *                                      vunet.getQueryString(document.MY_FORM_NAME)
 * Make AJAX calls:
 *                                      new vunet.AJAX.Loader('GET','index.html?id=1',true,handleResponse);
 *                                      new vunet.AJAX.Loader('POST','index.html',true,handleResponse,"id=1");
 *                      Handler function example: 
 *                                      function handleResponse(){alert(this.req.responseText);}
 * Debug with Logger, alerts & appends multiple messages to one floated box: 
 *                                      vunet.see("Some message")
 *                      (on double click closes box)
 * Tooltip to display hidden text: 
 *                                      vunet.showTooltip(event,'add text here')
 *                      can be added to onMouseOver or onClick events in HTML
 *                      hide tooltip with onMouseOut: 
 *                                      vunet.hideTooltip()
 * Fade full page & show box with content:
 *                                      vunet.fadePage(WIDTH,HEIGHT,HTML_STRING_OR_DOM_OBJECT_CONTENT)
 * Create cookies:
 *                                      vunet.setCookie(COOKIE_NAME,VALUE,FOR_HOW_MANY_DAYS,DOMAIN*,PATH*)
 *                      * = optional, ex.: vunet.setCookie("MyCookie","I store this cookie for a week",7);
 *                                      vunet.getCookie("MyCookie")
 * Empty DOM object:
 *                                      vunet.util.emptyNode(document.getElementById("myTableWithRows"))        
 * Add multiple events (cross browser):
 *                                      vunet.addEvent(window, "load", function_name_to_run)
 * Get HTML object by id or create new one:
 *                                      var myDiv = vunet.getHTML("div", "someIdString") //2nd parameter searches 
 *                                                                                                                                      //element by ID first and returns if found                                                                                                                                
 *                                      var myLink = vunet.getHTML("a") //new element created
 * Clone object:
 *                                      var myClone = vunet.util.clone(document.getElementById("myHtmlObject"));
 * Find any object position:
 *                                      var position = vunet.util.findPosition(document.getElementById("myHtmlObject"));
 *                                      alert("Position left = "+position[0]+", right = "+position[1]+"");
 * Load JavaScript file dynamically (on demand):
 *                                      vunet.loadScript("http://wwww.vunet.us/lib/vunet/vunet.js");
 * Fade In/Out Effects:
 *                                      vunet.fx.fadeIn("elementID",{"speed":0.5}); vunet.fx.fadeIn(objectID);
 *                                      vunet.fx.fadeOut("elementID,{"speed":0.7}); vunet.fx.fadeOut(objectID);
 * ===================================Prototype add-ons ===================================
 * Convert number to decimals:
 *                                      var number = 1.123456789; number.toDecimals(2); //result = 1.12
 * Check if string ends with substring (like Java method endsWidth()):
 *                                      if("vunet".endsWith("net")){ alert("Yes, vunet ends with net"); }
 */


//Version History Log 
//v 1.0 - inital release
//v 1.1 - clone function modified
//v 1.2 - added checkbox and radio support to getQueryString function; 
//                      added getURLParameter function
//                      added stringToJSON utility method for secure string response validation and conversion to JSON object
//                      added loadScript function
//v 1.3 - added fade-in, fade-out effect functions, fixed loading script in IE, added memory clean-up methods