// Navigation
    $(function () {
        if ($.browser.msie && $.browser.version < 7) return;
        
        $('#navigation li')
            .removeClass('highlight')
            .find('a')
            .append('<span class="hover" />').each(function () {
                    var $span = $('> span.hover', this).css('opacity', 0);
                    $(this).hover(function () {
                        // on hover
                        $span.stop().fadeTo(200, 1);
                    }, function () {
                        // off hover
                        $span.stop().fadeTo(700, 0);
                    });
                });
                
    });
// End Navigation

// Fancy Box
$(document).ready(function() {

			$("a#fancylight").fancybox({
				'titleShow'		: false
			});
	});
// End Fancy Box

// Background Scroll
$(function() {
	// Define the height of your two background images.
           //The image to scroll
	   var backgroundheight = 2000;

	// Create a random offset for both images' starting positions
        offset = Math.round(Math.floor(Math.random()* 1));
 
		function scrollbackground() {
    //Ensure all bases are covered when defining the offset.
   		offset = (offset < 1) ? offset + (backgroundheight - 1) : offset - 1;
   		$('#container').css("background-position", "50% " + offset + "px");
   		$('#containerfolio').css("background-position", "50% " + offset + "px");
   		$('#containerabout').css("background-position", "50% " + offset + "px");
		$('#containerspace').css("background-position", "50% " + offset + "px");
		$('#container404').css("background-position", "50% " + offset + "px");
   		// Enable the function to loop when it reaches the end of the image
   		setTimeout(function() {
			scrollbackground();
			}, 50
		);
   	}
	scrollbackground();

   		$('#overlay').css("background-position", "50% " + offset2 + "px");		
   		$('#overlay-404').css("background-position", "50% " + offset2 + "px");	
});
// End Background Scroll

// Form Requirments 
function validate_required(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {
    alert(alerttxt);return false;
    }
  else
    {
    return true;
    }
  }
}

function validate_form(thisform)
{
with (thisform)
  {
   if (validate_required(email,"Not too quick! Email needs to be filled out silly!")==false)
  {email.focus();return false;}
  }
}
// End Form Requirements 

/**
 * remy sharp / http://remysharp.com
 * Twitter / @rem
 * http://remysharp.com/2007/05/18/add-twitter-to-your-blog-step-by-step/
 *
 * @params
 *   cssIdOfContainer: e.g. twitters
 *   options: 
 *       {
 *           id: {String} username,
 *           count: {Int} 1-20, defaults to 1 - max limit 20
 *           prefix: {String} '%name% said', defaults to blank
 *           clearContents: {Boolean} true, removes contents of element specified in cssIdOfContainer, defaults to true
 *           ignoreReplies: {Boolean}, skips over tweets starting with '@', defaults to false
 *           template: {String} HTML template to use for LI element (see URL above for examples), defaults to predefined template
 *           enableLinks: {Boolean} linkifies text, defaults to true,
 *           newwindow {Boolean} opens links in new window, defaults to false
 *           timeout: {Int} How long before triggering onTimeout, defaults to 10 seconds if onTimeout is set
 *           onTimeoutCancel: {Boolean} Completely cancel twitter call if timedout, defaults to false
 *           onTimeout: {Function} Function to run when the timeout occurs. Function is bound to element specified with 
 *           cssIdOfContainer (i.e. 'this' keyword)
 *           callback: {Function} Callback function once the render is complete, doesn't fire on timeout
 *
 *      CURRENTLY DISABLED DUE TO CHANGE IN TWITTER API:
 *           withFriends: {Boolean} includes friend's status
 *
 *       }
 *
 * @license MIT (MIT-LICENSE.txt)
 * @version 1.13.1 - Number of fixes to ify, and fixed date parsing in Opera and 12AM issue
 * @date $Date: 2009-08-25 09:45:35 +0100 (Tue, 25 Aug 2009) $
 */

// to protect variables from resetting if included more than once
if (typeof renderTwitters != 'function') (function () {
    /** Private variables */
    
    // only used for the DOM ready, since IE & Safari require special conditions
    var browser = (function() {
        var b = navigator.userAgent.toLowerCase();

        // Figure out what browser is being used
        return {
            webkit: /(webkit|khtml)/.test(b),
            opera: /opera/.test(b),
            msie: /msie/.test(b) && !(/opera/).test(b),
            mozilla: /mozilla/.test(b) && !(/(compatible|webkit)/).test(b)
        };
    })();

    var guid = 0;
    var readyList = [];
    var isReady = false;
    
    var monthDict = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
    
    /** Global functions */
    
    // based on Dustin Diaz's ify, but with my fixes :-)
    window.ify = function() {
      var entities = {
          '"' : '&quot;',
          '&' : '&amp;',
          '<' : '&lt;',
          '>' : '&gt;'
      };

      return {
        "link": function(t) {
          return t.replace(/[a-z]+:\/\/[a-z0-9-_]+\.[a-z0-9-_:~%&\?\/.=]+[^:\.,\)\s*$]/ig, function(m) {
            return '<a href="' + m + '">' + ((m.length > 25) ? m.substr(0, 24) + '...' : m) + '</a>';
          });
        },
        "at": function(t) {
          return t.replace(/(^|[^\w]+)\@([a-zA-Z0-9_]{1,15})/g, function(m, m1, m2) {
            return m1 + '@<a href="http://twitter.com/' + m2 + '">' + m2 + '</a>';
          });
        },
        "hash": function(t) {
          return t.replace(/(^|[^\w'"]+)\#([a-zA-Z0-9_]+)/g, function(m, m1, m2) {
            return m1 + '#<a href="http://search.twitter.com/search?q=%23' + m2 + '">' + m2 + '</a>';
          });
        },
        "clean": function(tweet) {
          return this.hash(this.at(this.link(tweet)));
        }
      };
    }();
    
    // to create a public function within our private scope, we attach the 
    // the function to the window object
    window.renderTwitters = function (obj, options) {
        // private shortcuts
        function node(e) {
            return document.createElement(e);
        }
        
        function text(t) {
            return document.createTextNode(t);
        }

        var target = document.getElementById(options.twitterTarget);
        var data = null;
        var ul = node('ul'), li, statusSpan, timeSpan, i, max = obj.length > options.count ? options.count : obj.length;
        
        for (i = 0; i < max && obj[i]; i++) {
            data = getTwitterData(obj[i]);
                        
            if (options.ignoreReplies && obj[i].text.substr(0, 1) == '@') {
                max++;
                continue; // skip
            }
            
            li = node('li');
            
            if (options.template) {
                li.innerHTML = options.template.replace(/%([a-z_\-\.]*)%/ig, function (m, l) {
                    var r = data[l] + "" || "";
                    if (l == 'text' && options.enableLinks) r = ify.clean(r);
                    return r;
                });
            } else {
                statusSpan = node('span');
                statusSpan.className = 'twitterStatus';
                timeSpan = node('span');
                timeSpan.className = 'twitterTime';
                statusSpan.innerHTML = obj[i].text; // forces the entities to be converted correctly

                if (options.enableLinks == true) {
                    statusSpan.innerHTML = ify.clean(statusSpan.innerHTML);
                }

                timeSpan.innerHTML = relative_time(obj[i].created_at);

                if (options.prefix) {
                    var s = node('span');
                    s.className = 'twitterPrefix';
                    s.innerHTML = options.prefix.replace(/%(.*?)%/g, function (m, l) {
                        return obj[i].user[l];
                    });
                    li.appendChild(s);
                    li.appendChild(text(' ')); // spacer :-(
                }

                li.appendChild(statusSpan);
                li.appendChild(text(' '));
                li.appendChild(timeSpan);
            }
            
            if (options.newwindow) {
                li.innerHTML = li.innerHTML.replace(/<a href/gi, '<a target="_blank" href');
            }
            
            ul.appendChild(li);
        }

        if (options.clearContents) {
            while (target.firstChild) {
                target.removeChild(target.firstChild);
            }
        }

        target.appendChild(ul);
        
        if (typeof options.callback == 'function') {
            options.callback();
        }
    };
    
    window.getTwitters = function (target, id, count, options) {
        guid++;

        if (typeof id == 'object') {
            options = id;
            id = options.id;
            count = options.count;
        } 

        // defaulting options
        if (!count) count = 1;
        
        if (options) {
            options.count = count;
        } else {
            options = {};
        }
        
        if (!options.timeout && typeof options.onTimeout == 'function') {
            options.timeout = 10;
        }
        
        if (typeof options.clearContents == 'undefined') {
            options.clearContents = true;
        }
        
        // Hack to disable withFriends, twitter changed their API so this requires auth
        // http://getsatisfaction.com/twitter/topics/friends_timeline_api_call_suddenly_requires_auth
        if (options.withFriends) options.withFriends = false;

        // need to make these global since we can't pass in to the twitter callback
        options['twitterTarget'] = target;
        
        // default enable links
        if (typeof options.enableLinks == 'undefined') options.enableLinks = true;

        // this looks scary, but it actually allows us to have more than one twitter
        // status on the page, which in the case of my example blog - I do!
        window['twitterCallback' + guid] = function (obj) {
            if (options.timeout) {
                clearTimeout(window['twitterTimeout' + guid]);
            }
            renderTwitters(obj, options);
        };

        // check out the mad currying!
        ready((function(options, guid) {
            return function () {
                // if the element isn't on the DOM, don't bother
                if (!document.getElementById(options.twitterTarget)) {
                    return;
                }
                
                var url = 'http://www.twitter.com/statuses/' + (options.withFriends ? 'friends_timeline' : 'user_timeline') + '/' + id + '.json?callback=twitterCallback' + guid + '&count=20&cb=' + Math.random();

                if (options.timeout) {
                    window['twitterTimeout' + guid] = setTimeout(function () {
                        // cancel callback
                        if (options.onTimeoutCancel) window['twitterCallback' + guid] = function () {};
                        options.onTimeout.call(document.getElementById(options.twitterTarget));
                    }, options.timeout * 1000);
                }
                
                var script = document.createElement('script');
                script.setAttribute('src', url);
                document.getElementsByTagName('head')[0].appendChild(script);
            };
        })(options, guid));
    };
    
    // GO!
    DOMReady();
    

    /** Private functions */
    
    function getTwitterData(orig) {
        var data = orig, i;
        for (i in orig.user) {
            data['user_' + i] = orig.user[i];
        }
        
        data.time = relative_time(orig.created_at);
        
        return data;
    }
    
    function ready(callback) {
        if (!isReady) {
            readyList.push(callback);
        } else {
            callback.call();
        }
    }
    
    function fireReady() {
        isReady = true;
        var fn;
        while (fn = readyList.shift()) {
            fn.call();
        }
    }

    // ready and browser adapted from John Resig's jQuery library (http://jquery.com)
    function DOMReady() {
        if ( document.addEventListener && !browser.webkit ) {
            document.addEventListener( "DOMContentLoaded", fireReady, false );
        } else if ( browser.msie ) {
            // If IE is used, use the excellent hack by Matthias Miller
            // http://www.outofhanwell.com/blog/index.php?title=the_window_onload_problem_revisited

            // Only works if you document.write() it
            document.write("<scr" + "ipt id=__ie_init defer=true src=//:><\/script>");

            // Use the defer script hack
            var script = document.getElementById("__ie_init");

            // script does not exist if jQuery is loaded dynamically
            if (script) {
                script.onreadystatechange = function() {
                    if ( this.readyState != "complete" ) return;
                    this.parentNode.removeChild( this );
                    fireReady.call();
                };
            }

            // Clear from memory
            script = null;

        } else if ( browser.webkit ) {
            // Continually check to see if the document.readyState is valid
            var safariTimer = setInterval(function () {
                // loaded and complete are both valid states
                if ( document.readyState == "loaded" || 
                document.readyState == "complete" ) {

                    // If either one are found, remove the timer
                    clearInterval( safariTimer );
                    safariTimer = null;
                    // and execute any waiting functions
                    fireReady.call();
                }
            }, 10);
        }
    }
    
    function relative_time(time_value) {
        var values = time_value.split(" "),
            parsed_date = Date.parse(values[1] + " " + values[2] + ", " + values[5] + " " + values[3]),
            date = new Date(parsed_date),
            relative_to = (arguments.length > 1) ? arguments[1] : new Date(),
            delta = parseInt((relative_to.getTime() - parsed_date) / 1000),
            r = '';
        
        function formatTime(date) {
            var hour = date.getHours(),
                min = date.getMinutes() + "",
                ampm = 'AM';
            
            if (hour == 0) {
                hour = 12;
            } else if (hour == 12) {
                ampm = 'PM';
            } else if (hour > 12) {
                hour -= 12;
                ampm = 'PM';
            }
            
            if (min.length == 1) {
                min = '0' + min;
            }
            
            return hour + ':' + min + ' ' + ampm;
        }
        
        function formatDate(date) {
            var ds = date.toDateString().split(/ /),
                mon = monthDict[date.getMonth()],
                day = date.getDate()+'',
                dayi = parseInt(day),
                year = date.getFullYear(),
                thisyear = (new Date()).getFullYear(),
                th = 'th';
            
            // anti-'th' - but don't do the 11th, 12th or 13th
            if ((dayi % 10) == 1 && day.substr(0, 1) != '1') {
                th = 'st';
            } else if ((dayi % 10) == 2 && day.substr(0, 1) != '1') {
                th = 'nd';
            } else if ((dayi % 10) == 3 && day.substr(0, 1) != '1') {
                th = 'rd';
            }
            
            if (day.substr(0, 1) == '0') {
                day = day.substr(1);
            }
            
            return mon + ' ' + day + th + (thisyear != year ? ', ' + year : '');
        }
        
        delta = delta + (relative_to.getTimezoneOffset() * 60);

        if (delta < 5) {
            r = 'less than 5 seconds ago';
        } else if (delta < 30) {
            r = 'half a minute ago';
        } else if (delta < 60) {
            r = 'less than a minute ago';
        } else if (delta < 120) {
            r = '1 minute ago';
        } else if (delta < (45*60)) {
            r = (parseInt(delta / 60)).toString() + ' minutes ago';
        } else if (delta < (2*90*60)) { // 2* because sometimes read 1 hours ago
            r = 'about 1 hour ago';
        } else if (delta < (24*60*60)) {
            r = 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
        } else {
            if (delta < (48*60*60)) {
                r = formatTime(date) + ' yesterday';
            } else {
                r = formatTime(date) + ' ' + formatDate(date);
                // r = (parseInt(delta / 86400)).toString() + ' days ago';
            }
        }

        return r;
    }
})();

/**
* DD_belatedPNG: Adds IE6 support: PNG images for CSS background-image and HTML <IMG/>.
* Author: Drew Diller
* Email: drew.diller@gmail.com
* URL: http://www.dillerdesign.com/experiment/DD_belatedPNG/
* Version: 0.0.8a
* Licensed under the MIT License: http://dillerdesign.com/experiment/DD_belatedPNG/#license
*
* Example usage:
* DD_belatedPNG.fix('.png_bg'); // argument is a CSS selector
* DD_belatedPNG.fixPng( someNode ); // argument is an HTMLDomElement
**/
var DD_belatedPNG={ns:"DD_belatedPNG",imgSize:{},delay:10,nodesFixed:0,createVmlNameSpace:function(){if(document.namespaces&&!document.namespaces[this.ns]){document.namespaces.add(this.ns,"urn:schemas-microsoft-com:vml")}},createVmlStyleSheet:function(){var b,a;b=document.createElement("style");b.setAttribute("media","screen");document.documentElement.firstChild.insertBefore(b,document.documentElement.firstChild.firstChild);if(b.styleSheet){b=b.styleSheet;b.addRule(this.ns+"\\:*","{behavior:url(#default#VML)}");b.addRule(this.ns+"\\:shape","position:absolute;");b.addRule("img."+this.ns+"_sizeFinder","behavior:none; border:none; position:absolute; z-index:-1; top:-10000px; visibility:hidden;");this.screenStyleSheet=b;a=document.createElement("style");a.setAttribute("media","print");document.documentElement.firstChild.insertBefore(a,document.documentElement.firstChild.firstChild);a=a.styleSheet;a.addRule(this.ns+"\\:*","{display: none !important;}");a.addRule("img."+this.ns+"_sizeFinder","{display: none !important;}")}},readPropertyChange:function(){var b,c,a;b=event.srcElement;if(!b.vmlInitiated){return}if(event.propertyName.search("background")!=-1||event.propertyName.search("border")!=-1){DD_belatedPNG.applyVML(b)}if(event.propertyName=="style.display"){c=(b.currentStyle.display=="none")?"none":"block";for(a in b.vml){if(b.vml.hasOwnProperty(a)){b.vml[a].shape.style.display=c}}}if(event.propertyName.search("filter")!=-1){DD_belatedPNG.vmlOpacity(b)}},vmlOpacity:function(b){if(b.currentStyle.filter.search("lpha")!=-1){var a=b.currentStyle.filter;a=parseInt(a.substring(a.lastIndexOf("=")+1,a.lastIndexOf(")")),10)/100;b.vml.color.shape.style.filter=b.currentStyle.filter;b.vml.image.fill.opacity=a}},handlePseudoHover:function(a){setTimeout(function(){DD_belatedPNG.applyVML(a)},1)},fix:function(a){if(this.screenStyleSheet){var c,b;c=a.split(",");for(b=0;b<c.length;b++){this.screenStyleSheet.addRule(c[b],"behavior:expression(DD_belatedPNG.fixPng(this))")}}},applyVML:function(a){a.runtimeStyle.cssText="";this.vmlFill(a);this.vmlOffsets(a);this.vmlOpacity(a);if(a.isImg){this.copyImageBorders(a)}},attachHandlers:function(i){var d,c,g,e,b,f;d=this;c={resize:"vmlOffsets",move:"vmlOffsets"};if(i.nodeName=="A"){e={mouseleave:"handlePseudoHover",mouseenter:"handlePseudoHover",focus:"handlePseudoHover",blur:"handlePseudoHover"};for(b in e){if(e.hasOwnProperty(b)){c[b]=e[b]}}}for(f in c){if(c.hasOwnProperty(f)){g=function(){d[c[f]](i)};i.attachEvent("on"+f,g)}}i.attachEvent("onpropertychange",this.readPropertyChange)},giveLayout:function(a){a.style.zoom=1;if(a.currentStyle.position=="static"){a.style.position="relative"}},copyImageBorders:function(b){var c,a;c={borderStyle:true,borderWidth:true,borderColor:true};for(a in c){if(c.hasOwnProperty(a)){b.vml.color.shape.style[a]=b.currentStyle[a]}}},vmlFill:function(e){if(!e.currentStyle){return}else{var d,f,g,b,a,c;d=e.currentStyle}for(b in e.vml){if(e.vml.hasOwnProperty(b)){e.vml[b].shape.style.zIndex=d.zIndex}}e.runtimeStyle.backgroundColor="";e.runtimeStyle.backgroundImage="";f=true;if(d.backgroundImage!="none"||e.isImg){if(!e.isImg){e.vmlBg=d.backgroundImage;e.vmlBg=e.vmlBg.substr(5,e.vmlBg.lastIndexOf('")')-5)}else{e.vmlBg=e.src}g=this;if(!g.imgSize[e.vmlBg]){a=document.createElement("img");g.imgSize[e.vmlBg]=a;a.className=g.ns+"_sizeFinder";a.runtimeStyle.cssText="behavior:none; position:absolute; left:-10000px; top:-10000px; border:none; margin:0; padding:0;";c=function(){this.width=this.offsetWidth;this.height=this.offsetHeight;g.vmlOffsets(e)};a.attachEvent("onload",c);a.src=e.vmlBg;a.removeAttribute("width");a.removeAttribute("height");document.body.insertBefore(a,document.body.firstChild)}e.vml.image.fill.src=e.vmlBg;f=false}e.vml.image.fill.on=!f;e.vml.image.fill.color="none";e.vml.color.shape.style.backgroundColor=d.backgroundColor;e.runtimeStyle.backgroundImage="none";e.runtimeStyle.backgroundColor="transparent"},vmlOffsets:function(d){var h,n,a,e,g,m,f,l,j,i,k;h=d.currentStyle;n={W:d.clientWidth+1,H:d.clientHeight+1,w:this.imgSize[d.vmlBg].width,h:this.imgSize[d.vmlBg].height,L:d.offsetLeft,T:d.offsetTop,bLW:d.clientLeft,bTW:d.clientTop};a=(n.L+n.bLW==1)?1:0;e=function(b,p,q,c,s,u){b.coordsize=c+","+s;b.coordorigin=u+","+u;b.path="m0,0l"+c+",0l"+c+","+s+"l0,"+s+" xe";b.style.width=c+"px";b.style.height=s+"px";b.style.left=p+"px";b.style.top=q+"px"};e(d.vml.color.shape,(n.L+(d.isImg?0:n.bLW)),(n.T+(d.isImg?0:n.bTW)),(n.W-1),(n.H-1),0);e(d.vml.image.shape,(n.L+n.bLW),(n.T+n.bTW),(n.W),(n.H),1);g={X:0,Y:0};if(d.isImg){g.X=parseInt(h.paddingLeft,10)+1;g.Y=parseInt(h.paddingTop,10)+1}else{for(j in g){if(g.hasOwnProperty(j)){this.figurePercentage(g,n,j,h["backgroundPosition"+j])}}}d.vml.image.fill.position=(g.X/n.W)+","+(g.Y/n.H);m=h.backgroundRepeat;f={T:1,R:n.W+a,B:n.H,L:1+a};l={X:{b1:"L",b2:"R",d:"W"},Y:{b1:"T",b2:"B",d:"H"}};if(m!="repeat"||d.isImg){i={T:(g.Y),R:(g.X+n.w),B:(g.Y+n.h),L:(g.X)};if(m.search("repeat-")!=-1){k=m.split("repeat-")[1].toUpperCase();i[l[k].b1]=1;i[l[k].b2]=n[l[k].d]}if(i.B>n.H){i.B=n.H}d.vml.image.shape.style.clip="rect("+i.T+"px "+(i.R+a)+"px "+i.B+"px "+(i.L+a)+"px)"}else{d.vml.image.shape.style.clip="rect("+f.T+"px "+f.R+"px "+f.B+"px "+f.L+"px)"}},figurePercentage:function(d,c,f,a){var b,e;e=true;b=(f=="X");switch(a){case"left":case"top":d[f]=0;break;case"center":d[f]=0.5;break;case"right":case"bottom":d[f]=1;break;default:if(a.search("%")!=-1){d[f]=parseInt(a,10)/100}else{e=false}}d[f]=Math.ceil(e?((c[b?"W":"H"]*d[f])-(c[b?"w":"h"]*d[f])):parseInt(a,10));if(d[f]%2===0){d[f]++}return d[f]},fixPng:function(c){c.style.behavior="none";var g,b,f,a,d;if(c.nodeName=="BODY"||c.nodeName=="TD"||c.nodeName=="TR"){return}c.isImg=false;if(c.nodeName=="IMG"){if(c.src.toLowerCase().search(/\.png$/)!=-1){c.isImg=true;c.style.visibility="hidden"}else{return}}else{if(c.currentStyle.backgroundImage.toLowerCase().search(".png")==-1){return}}g=DD_belatedPNG;c.vml={color:{},image:{}};b={shape:{},fill:{}};for(a in c.vml){if(c.vml.hasOwnProperty(a)){for(d in b){if(b.hasOwnProperty(d)){f=g.ns+":"+d;c.vml[a][d]=document.createElement(f)}}c.vml[a].shape.stroked=false;c.vml[a].shape.appendChild(c.vml[a].fill);c.parentNode.insertBefore(c.vml[a].shape,c)}}c.vml.image.shape.fillcolor="none";c.vml.image.fill.type="tile";c.vml.color.fill.on=false;g.attachHandlers(c);g.giveLayout(c);g.giveLayout(c.offsetParent);c.vmlInitiated=true;g.applyVML(c)}};try{document.execCommand("BackgroundImageCache",false,true)}catch(r){}DD_belatedPNG.createVmlNameSpace();DD_belatedPNG.createVmlStyleSheet();