/********************************************************
For more info & download: http://www.ibegin.com/blog/p_ibox.html
Created for iBegin.com - local search done right
MIT Licensed Style
*********************************************************/
var indicator_img_path = "http://www.henrylevine.com/portfolio/img/indicator.gif";
var indicator_img_html = "<img name=\"ibox_indicator\" src=\""+indicator_img_path+"\" alt=\"Loading...\" style=\"width:66px;height:66px;\"/>"; // don't remove the name

var opacity_level = 8; // how transparent our overlay bg is
var ibAttr = "rel";     // our attribute identifier for our iBox elements


var imgPreloader = new Image(); // create an preloader object
function init_ibox() {
    var elem_wrapper = "ibox";

    createIbox(document.getElementsByTagName("body")[0]); //create our ibox

    //      elements here start the look up from the start non <a> tags
    //var docRoot = (document.all) ? document.all : document.getElementsByTagName("*");

    // Or make sure we only check <a> tags
    var docRoot = document.getElementsByTagName("a");

    var e;
    for (var i = 0; i < docRoot.length - 1; i++) {
        e = docRoot[i];
        if(e.getAttribute(ibAttr)) {
            var t = e.getAttribute(ibAttr);
            if ((t.indexOf("ibox") != -1)  ||  t.toLowerCase() == "ibox") { // check if this element is an iBox element
                e.onclick = function() { // rather assign an onclick event
                    var t = this.getAttribute(ibAttr);
                    var params = parseQuery(t.substr(5,999));
                    var url = this.href;
                    if(this.target != "") {url = this.target}
                    var title = this.title;
                    return doIbox(url, title, params);
                }
            }
        }
    }
}

doIbox = function(url, title, param_str) { // rather assign an onclick event
    var params = parseQuery(param_str);
    if(showIbox(url,title,params)) {
        showBG();
        window.onscroll = maintPos;
        window.onresize = maintPos;
    }
    return false;
}

showBG = function() {
        var box_w = getElem('ibox_w');


        box_w.style.opacity = 0;
        box_w.style.filter = 'alpha(opacity=0)';
        setBGOpacity = setOpacity;
        //for (var i=0;i<=opacity_level;i++) {setTimeout("setIboxOpacity('ibox_w',"+i+")",70*i);} // from quirksmode.org
        setTimeout("setIboxOpacity('ibox_w',"+opacity_level+")",10);

        box_w.style.display = "";
        var pagesize = new getPageSize();
        var scrollPos = new getScrollPos();
        var ua = navigator.userAgent;

        if(ua.indexOf("MSIE ") != -1) {box_w.style.width = pagesize.width+'px';}
        /*else {box_w.style.width = pagesize.width-20+'px';}*/ // scrollbars removed! Hurray!
        box_w.style.height = pagesize.height+scrollPos.scrollY+'px';

}

hideBG = function() {
        var box_w = getElem('ibox_w');
        box_w.style.display = "none";

}

var loadCancelled = false;
showIndicator = function() {
        var ibox_p = getElem('ibox_progress');
        ibox_p.style.display = "";
        posToCenter(ibox_p);
        ibox_p.onclick = function() {hideIbox();hideIndicator();loadCancelled = true;}
}


hideIndicator = function() {
        var ibox_p = getElem('ibox_progress');
        ibox_p.style.display = "none";
        ibox_p.onclick = null;
}

createIbox = function(elem) {
        // a trick on just creating an ibox wrapper then doing an innerHTML on our root ibox element
        var strHTML = "<div id=\"ibox_w\" style=\"display:none;\"></div>";
        strHTML +=      "<div id=\"ibox_progress\" style=\"display:none;\">";
        strHTML +=  indicator_img_html;
        strHTML +=  "</div>";
        strHTML +=      "<div id=\"ibox_wrapper\" style=\"display:none\">";
        strHTML +=      "<div id=\"ibox_content\"></div>";
        strHTML +=      "<div id=\"ibox_footer_wrapper\"><div id=\"ibox_close\" style=\"float:right;\">";
        strHTML +=      "<a id=\"ibox_close_a\" href=\"javascript:void(null);\" >Click here to close</a></div>";
        strHTML +=  "<div id=\"ibox_footer\">&nbsp;</div></div></div></div>";

        var docBody = document.getElementsByTagName("body")[0];
        var ibox = document.createElement("div");
        ibox.setAttribute("id","ibox");
        ibox.style.display = '';
        ibox.innerHTML = strHTML;
        elem.appendChild(ibox);
}

var ibox_w_height = 0;
showIbox = function(url,title,params) {

        var ibox = getElem('ibox_wrapper');
        var ibox_type = 0;

        // set title here
        var ibox_footer = getElem('ibox_footer');
        if(title != "") {ibox_footer.innerHTML = title;} else {ibox_footer.innerHTML = "&nbsp;";}

        // file checking code borrowed from thickbox
        var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.html|\.htm|\.php|\.cfm|\.asp|\.aspx|\.jsp|\.jst|\.rb|\.rhtml|\.txt/g;

        var urlType = url.toLowerCase().match(urlString);

        if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif'){
                ibox_type = 1;
        } else if(url.indexOf("#") != -1) {
                ibox_type = 2;
        } else if(urlType=='.htm'||urlType=='.html'||urlType=='.php'||
                         urlType=='.asp'||urlType=='.aspx'||urlType=='.jsp'||
                         urlType=='.jst'||urlType=='.rb'||urlType=='.txt'||urlType=='.rhtml'||
                         urlType=='.cfm') {
                ibox_type = 3;
        } else {
                // override our ibox type if forced param exist
                if(params['type']) {ibox_type = parseInt(params['type']);}
                else{hideIbox();return false;}
        }

        ibox_type = parseInt(ibox_type);


        switch(ibox_type) {

                case 1:

                        showIndicator();

                        imgPreloader = new Image();

                        imgPreloader.onload = function(){

                                imgPreloader = resizeImageToScreen(imgPreloader);
                                hideIndicator();

                                var strHTML = "<img name=\"ibox_img\" src=\""+url+"\" style=\"width:"+imgPreloader.width+"px;height:"+imgPreloader.height+"px;border:0;cursor:hand;margin:0;padding:0;position:absolute;\"/>";

                                if(loadCancelled == false) {

                                        // set width and height
                                        ibox.style.height = imgPreloader.height+'px';
                                        ibox.style.width = imgPreloader.width+'px';

                                        ibox.style.display = "";
                                        ibox.style.visibility = "hidden";
                                        posToCenter(ibox);
                                        ibox.style.visibility = "visible";

                                        setIBoxContent(strHTML);
                                }

                        }

                        loadCancelled = false;
                        imgPreloader.src = url;

                        break;

                case 2:

                        var strHTML = "";


                        if(params['height']) {ibox.style.height = params['height']+'px';}
                        else {ibox.style.height = '280px';}

                        if(params['width']) {ibox.style.width = params['width']+'px';}
                        else {ibox.style.width = '450px';}


                        ibox.style.display = "";
                        ibox.style.visibility = "hidden";
                        posToCenter(ibox);
                        ibox.style.visibility = "visible";

                        getElem('ibox_content').style.overflow = "auto";

                        var elemSrcId = url.substr(url.indexOf("#") + 1,1000);

                        var elemSrc = getElem(elemSrcId);

                        if(elemSrc) {strHTML = elemSrc.innerHTML;}

                        setIBoxContent(strHTML);

                        break;

                case 3:
                        showIndicator();
                        http.open('get',url,true);

                        http.onreadystatechange = function() {
                                if(http.readyState == 4){
                                        hideIndicator();

                                        if(params['height']) {ibox.style.height = params['height']+'px';}
                                        else {ibox.style.height = '280px';}

                                        if(params['width']) {ibox.style.width = params['width']+'px';}
                                        else {ibox.style.width = '450px';}

                                        ibox.style.display = "";
                                        ibox.style.visibility = "hidden";
                                        posToCenter(ibox);
                                        ibox.style.visibility = "visible";
                                        getElem('ibox_content').style.overflow = "auto";

                                        var response = http.responseText;
                                        setIBoxContent(response);

                                }
                        }

                        http.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
                        http.send(null);
                        break;

                default:

         }


        ibox.style.opacity = 0;
        ibox.style.filter = 'alpha(opacity=0)';
        var ibox_op_level = 10;

        setIboxOpacity = setOpacity;
        for (var i=0;i<=ibox_op_level;i++) {setTimeout("setIboxOpacity('ibox_wrapper',"+i+")",50*i);}

        if(ibox_type == 2 || ibox_type == 3) {
                ibox.onclick = null;getElem("ibox_close_a").onclick = function() {hideIbox();}
        } else {ibox.onclick = hideIbox;getElem("ibox_close_a").onclick = null;}

        return true;
}

setOpacity = function (elemid,value)    {
                var e = getElem(elemid);
                e.style.opacity = value/10;
                e.style.filter = 'alpha(opacity=' + value*10 + ')';
}

resizeImageToScreen = function(objImg) {

        var pagesize = new getPageSize();

        var x = pagesize.width - 100;
        var y = pagesize.height - 100;

        if(objImg.width > x) {
                objImg.height = objImg.height * (x/objImg.width);
                objImg.width = x;
                if(objImg.height > y) {
                        objImg.width = objImg.width * (y/objImg.height);
                        objImg.height = y;
                }
        }

        else if(objImg.height > y) {
                objImg.width = objImg.width * (y/objImg.height);
                objImg.height = y;
                if(objImg.width > x) {
                        objImg.height = objImg.height * (x/objImg.width);
                        objImg.width = x;
                }
        }

        return objImg;
}

maintPos = function() {

        var ibox = getElem('ibox_wrapper');
        var box_w = getElem('ibox_w');
        var pagesize = new getPageSize();
        var scrollPos = new getScrollPos();
        var ua = navigator.userAgent;

        if(ua.indexOf("MSIE ") != -1) {box_w.style.width = pagesize.width+'px';}
        /*else {box_w.style.width = pagesize.width-20+'px';}*/

        if(ua.indexOf("Opera/9") != -1) {box_w.style.height = document.body.scrollHeight+'px';}
        else {box_w.style.height = pagesize.height+scrollPos.scrollY+'px';}

        // alternative 1
        //box_w.style.height = document.body.scrollHeight+50+'px';

        posToCenter(ibox);

}

hideIbox = function() {
        hideBG();
        var ibox = getElem('ibox_wrapper');
        ibox.style.display = "none";

        clearIboxContent();
        window.onscroll = null;
}

posToCenter = function(elem) {
        var scrollPos = new getScrollPos();
        var pageSize = new getPageSize();
        var emSize = new getElementSize(elem);
        var x = Math.round(pageSize.width/2) - (emSize.width /2) + scrollPos.scrollX;
        var y = Math.round(pageSize.height/2) - (emSize.height /2) + scrollPos.scrollY;
        elem.style.left = x+'px';
        elem.style.top = y+'px';
}

getScrollPos = function() {
        var docElem = document.documentElement;
        this.scrollX = self.pageXOffset || (docElem&&docElem.scrollLeft) || document.body.scrollLeft;
        this.scrollY = self.pageYOffset || (docElem&&docElem.scrollTop) || document.body.scrollTop;
}

getPageSize = function() {
        var docElem = document.documentElement
        this.width = self.innerWidth || (docElem&&docElem.clientWidth) || document.body.clientWidth;
        this.height = self.innerHeight || (docElem&&docElem.clientHeight) || document.body.clientHeight;
}

getElementSize = function(elem) {
        this.width = elem.offsetWidth ||  elem.style.pixelWidth;
        this.height = elem.offsetHeight || elem.style.pixelHeight;
}

setIBoxContent = function(str) {
        clearIboxContent();
        var e = getElem('ibox_content');
        e.style.overflow = "auto";
        e.innerHTML = str;

}
clearIboxContent = function() {
        var e = getElem('ibox_content');
        e.innerHTML = "";

}


getElem = function(elemId) {
        return document.getElementById(elemId);
}

// parseQuery code borrowed from thickbox, Thanks Cody!
parseQuery = function(query) {
   var Params = new Object ();
   if (!query) return Params;
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) continue;
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;

   }

   return Params;
}

/********************************************************
 Make this IE7 Compatible ;)
 http://ajaxian.com/archives/ajax-on-ie-7-check-native-first
*********************************************************/
createRequestObject = function() {
        var xmlhttp;
                /*@cc_on
        @if (@_jscript_version>= 5)
                        try {xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
                        } catch (e) {
                                        try {xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");}
                                        catch (E) {xmlhttp = false;}
                        }
        @else
                xmlhttp = false;
        @end @*/
        if (!xmlhttp && typeof XMLHttpRequest != "undefined") {
                        try {xmlhttp = new XMLHttpRequest();} catch (e) {xmlhttp = false;}
        }
        return xmlhttp;
}

var http = createRequestObject();

function addEvent(obj, evType, fn){
 if (obj.addEventListener){
   obj.addEventListener(evType, fn, false);
   return true;
 } else if (obj.attachEvent){
   var r = obj.attachEvent("on"+evType, fn);
   return r;
 } else {
   return false;
 }
}
//addEvent(window, 'load', init_ibox);