(function(jQuery) {
function stripFiletype(ref) {
var x=ref.replace('.html', '');
return x.replace('#', '');}
function initOrigin(l) {
if (l.xorigin=='left') {l.xorigin=0;} else if (l.xorigin=='middle' || l.xorigin=='centre' || l.xorigin=='center')	{l.xorigin=0.5;}	else if (l.xorigin=='right')	{l.xorigin=1;}
if (l.yorigin=='top') {l.yorigin=0;} else if (l.yorigin=='middle' || l.yorigin=='centre' || l.yorigin=='center')	{l.yorigin=0.5;}	else if (l.yorigin=='bottom')	{l.yorigin=1;}}
function positionMouse(mouseport, localmouse, virtualmouse) {
var difference = {x: 0, y: 0, sum: 0};
if (!mouseport.ontarget) {
difference.x= virtualmouse.x - localmouse.x;
difference.y= virtualmouse.y - localmouse.y;
difference.sum  = Math.sqrt(difference.x*difference.x + difference.y*difference.y);
virtualmouse.x = localmouse.x + difference.x * mouseport.takeoverFactor;
virtualmouse.y = localmouse.y + difference.y * mouseport.takeoverFactor;
if (difference.sum < mouseport.takeoverThresh && difference.sum > mouseport.takeoverThresh*-1) {
mouseport.ontarget=true;}}
else {
virtualmouse.x = localmouse.x;
virtualmouse.y = localmouse.y;}}
function setupPorts(viewport, mouseport) {
var offset = mouseport.element.offset();
jQuery.extend(viewport, {
width:viewport.element.width(),
height:viewport.element.height()});
jQuery.extend(mouseport, {
width:mouseport.element.width(),
height:mouseport.element.height(),
top:offset.top,
left:offset.left});}
function parseTravel(travel, origin, dimension) {
var offset;
var cssPos;
if (typeof(travel) === 'string') {
if (travel.search(/^\d+\s?px$/) != -1) {
travel = travel.replace('px', '');
travel = parseInt(travel, 10);
offset = origin * (dimension-travel);
cssPos = origin * 100 + '%';   
return {travel: travel, travelpx: true, offset: offset, cssPos: cssPos};}
else if (travel.search(/^\d+\s?%$/) != -1) {
travel.replace('%', '');
travel = parseInt(travel, 10) / 100;}
else {travel=1;}}
offset = origin * (1 - travel);
return {travel: travel, travelpx: false, offset: offset}}
function setupLayer(layer, i, mouseport) {
var xStuff;
var yStuff;
var cssObject = {};
layer[i]=jQuery.extend(layer[i], {
width:layer[i].element.width(),
height:layer[i].element.height()
}, layer[i]);
xStuff = parseTravel(layer[i].xtravel, layer[i].xorigin, layer[i].width);
yStuff = parseTravel(layer[i].ytravel, layer[i].yorigin, layer[i].height);
jQuery.extend(layer[i], {
diffxrat:mouseport.width / (layer[i].width - mouseport.width),
diffyrat:mouseport.height / (layer[i].height - mouseport.height),
xtravel:xStuff.travel,
ytravel:yStuff.travel,
xtravelpx:xStuff.travelpx,
ytravelpx:yStuff.travelpx,
xoffset:xStuff.offset,
yoffset:yStuff.offset});
if (xStuff.travelpx) {cssObject.left = xStuff.cssPos;}
if (yStuff.travelpx) {cssObject.top = yStuff.cssPos;}
if (xStuff.travelpx || yStuff.travelpx) {layer[i].element.css(cssObject);}}
function setupLayerContents(layer, i, viewportOffset) {
var contentOffset;
jQuery.extend(layer[i], {content: []});
for (var n=0; n<layer[i].element.children().length; n++) {
if (!layer[i].content[n])layer[i].content[n]= {};
if (!layer[i].content[n].element)  layer[i].content[n]['element']  = layer[i].element.children().eq(n);
if(!layer[i].content[n].anchor && layer[i].content[n].element.children('a').attr('name')) {
layer[i].content[n]['anchor'] = layer[i].content[n].element.children('a').attr('name');}
if(layer[i].content[n].anchor) {
contentOffset = layer[i].content[n].element.offset();
jQuery.extend(layer[i].content[n], {
width:layer[i].content[n].element.width(),
height:layer[i].content[n].element.height(),
x:contentOffset.left - viewportOffset.left,
y:contentOffset.top - viewportOffset.top});
jQuery.extend(layer[i].content[n], { 
posxrat:(layer[i].content[n].x + layer[i].content[n].width/2) / layer[i].width,
posyrat:(layer[i].content[n].y + layer[i].content[n].height/2) / layer[i].height});}}}
function moveLayers(layer, xratio, yratio) {
var xpos;
var ypos;
var cssObject;
for (var i=0; i<layer.length; i++) {
xpos = layer[i].xtravel * xratio + layer[i].xoffset;
ypos = layer[i].ytravel * yratio + layer[i].yoffset;
cssObject = {};
if (layer[i].xparallax) {
if (layer[i].xtravelpx) {
cssObject.marginLeft = xpos * -1 + 'px';} 
else {
cssObject.left = xpos * 100 + '%';
cssObject.marginLeft = xpos * layer[i].width *-1 + 'px';}}
if (layer[i].yparallax) {
if (layer[i].ytravelpx) {
cssObject.marginTop = ypos * -1 + 'px';}
else {
cssObject.top = ypos * 100 + '%';
cssObject.marginTop = ypos * layer[i].height * -1 + 'px';}}
layer[i].element.css(cssObject);}}
jQuery.fn.jparallax = function(options) {
var settings = jQuery().extend({}, jQuery.fn.jparallax.settings, options);
var settingsLayer = {
xparallax:settings.xparallax,
yparallax:settings.yparallax,
xorigin:settings.xorigin,
yorigin:settings.yorigin,
xtravel:settings.xtravel,
ytravel:settings.ytravel};
var settingsMouseport = {
element:settings.mouseport,
takeoverFactor:settings.takeoverFactor,
takeoverThresh:settings.takeoverThresh};
if (settings.mouseport) settingsMouseport['element'] = settings.mouseport;
var layersettings = [];
for(var a=1; a<arguments.length; a++) {
layersettings.push( jQuery.extend( {}, settingsLayer, arguments[a]) );}
return this.each(function() {
var localmouse = {x:0.5,y:0.5};
var virtualmouse = {x:0.5,y:0.5};
var timer = {
running:false,
frame:settings.frameDuration,
fire:function(x, y) {
positionMouse(mouseport, localmouse, virtualmouse);
moveLayers(layer, virtualmouse.x, virtualmouse.y);
this.running = setTimeout(function() {
if ( localmouse.x!=x || localmouse.y!=y || !mouseport.ontarget ) {
timer.fire(localmouse.x, localmouse.y);}
else if (timer.running) {
timer.running=false;}
}, timer.frame);}};
var viewport={element: jQuery(this)};		
var mouseport = jQuery.extend({}, {element: viewport.element}, settingsMouseport, {
xinside:false,
yinside:false,
active:false,
ontarget:false});
var layer= [];
function matrixSearch(layer, ref, callback) {
for (var i=0; i<layer.length; i++) {
var gotcha=false;
for (var n=0; n<layer[i].content.length; n++) {
if (layer[i].content[n].anchor==ref) {
callback(i, n);
return [i, n];}}}
return false;}
setupPorts(viewport, mouseport);
for (var i=0; i<viewport.element.children().length; i++) {
layer[i]=jQuery.extend({}, settingsLayer, layersettings[i], {
element:viewport.element.children('*:eq('+i+')')});
setupLayer(layer, i, mouseport);
if (settings.triggerResponse) {
setupLayerContents(layer, i, viewport.element.offset());}}
viewport.element.children().css('position', 'absolute');
moveLayers(layer, 0.5, 0.5);
if (settings.mouseResponse) {
jQuery().mousemove(function(mouse){
mouseport.xinside = (mouse.pageX >= mouseport.left && mouse.pageX < mouseport.width+mouseport.left) ? true : false;
mouseport.yinside = (mouse.pageY >= mouseport.top  && mouse.pageY < mouseport.height+mouseport.top)  ? true : false;
if (mouseport.xinside && mouseport.yinside && !mouseport.active) {
mouseport.ontarget = false;
mouseport.active = true;}
if (mouseport.active) {
if (mouseport.xinside) { localmouse.x = (mouse.pageX - mouseport.left) / mouseport.width; }
else { localmouse.x = (mouse.pageX < mouseport.left) ? 0 : 1; }
if (mouseport.yinside) { localmouse.y = (mouse.pageY - mouseport.top) / mouseport.height; } 
else { localmouse.y = (mouse.pageY < mouseport.top) ? 0 : 1; }}
if (mouseport.xinside && mouseport.yinside)  { if (!timer.running) timer.fire(localmouse.x, localmouse.y); }
else if (mouseport.active) { mouseport.active = false; }});}
if (settings.triggerResponse) {
viewport.element.bind("jparallax", function(event, ref){
ref = stripFiletype(ref);
matrixSearch(layer, ref, function(i, n) {
localmouse.x = layer[i].content[n].posxrat * (layer[i].diffxrat + 1) - (0.5 * layer[i].diffxrat);
localmouse.y = layer[i].content[n].posyrat * (layer[i].diffyrat + 1) - (0.5 * layer[i].diffyrat);
if (!settings.triggerExposesEdges) {
if (localmouse.x < 0) localmouse.x = 0;
if (localmouse.x > 1) localmouse.x = 1;
if (localmouse.y < 0) localmouse.y = 0;
if (localmouse.y > 1) localmouse.y = 1;}
mouseport.ontarget = false;
if (!timer.running) timer.fire(localmouse.x, localmouse.y);});});}
jQuery(window).resize(function() {
setupPorts(viewport, mouseport);
for (var i=0; i<layer.length; i++) {
setupLayer(layer, i, mouseport);}});});};
jQuery.fn.jparallax.settings = {
mouseResponse:true,
mouseActiveOutside:false,
triggerResponse:true,
triggerExposesEdges:false,
xparallax:true,
yparallax:true,
xorigin:0.5,
yorigin:0.5,
xtravel:1,
ytravel:1,
takeoverFactor:0.65,
takeoverThresh:0.002,
frameDuration:25};
initOrigin(jQuery.fn.jparallax.settings);
jQuery(function() {});
})(jQuery);