document.getElementsByClassName = function(className) {
 var children = document.getElementsByTagName('*') || document.all;
 var elements = new Array();
 
 for (var i = 0; i < children.length; i++) {
 var child = children[i];
 var classNames = child.className.split(' ');
 for (var j = 0; j < classNames.length; j++) {
 if (classNames[j] == className) {
 elements.push(child);
 break;
 }
 }
 }
 return elements;
}

var Reflection = {
 defaultHeight : 0.5,
 defaultOpacity: 0.5,
 
 add: function(image, options) {
 Reflection.remove(image);
 
 doptions = { "height" : Reflection.defaultHeight, "opacity" : Reflection.defaultOpacity }
 if (options) {
 for (var i in doptions) {
 if (!options[i]) {
 options[i] = doptions[i];
 }
 }
 } else {
 options = doptions;
 }
 
 try {
 var d = document.createElement('div');
 var p = image;
 
 var classes = p.className.split(' ');
 var newClasses = '';
 for (j=0;j<classes.length;j++) {
 if (classes[j] != "userAvatar") {
 if (newClasses) {
 newClasses += ' '
 }
 
 newClasses += classes[j];
 }
 }

 var reflectionHeight = Math.floor(p.height*options['height']);
 var divHeight = Math.floor(p.height*(1+options['height']));
 
 var reflectionWidth = p.width;
 
 if (document.all && !window.opera) {
 /* Copy original image's classes & styles to div */
 d.className = newClasses;
 p.className = 'reflected';
 
 d.style.cssText = p.style.cssText;
 p.style.cssText = 'vertical-align: bottom';
 
 var reflection = document.createElement('img');
 reflection.src = p.src;
 reflection.style.width = reflectionWidth+'px';
 
 reflection.style.marginBottom = "-"+(p.height-reflectionHeight)+'px';
 reflection.style.filter = 'flipv progid:DXImageTransform.Microsoft.Alpha(opacity='+(options['opacity']*100)+', style=1, finishOpacity=0, startx=0, starty=0, finishx=0, finishy='+(options['height']*100)+')';
 
 d.style.width = reflectionWidth+'px';
 d.style.height = divHeight+'px';
 p.parentNode.replaceChild(d, p);
 
 d.appendChild(p);
 d.appendChild(reflection);
 } else {
 var canvas = document.createElement('canvas');
 if (canvas.getContext) {
 /* Copy original image's classes & styles to div */
 d.className = newClasses;
 p.className = 'reflected';
 
 d.style.cssText = p.style.cssText;
 p.style.cssText = 'vertical-align: bottom';
 
 var context = canvas.getContext("2d");
 
 canvas.style.height = reflectionHeight+'px';
 canvas.style.width = reflectionWidth+'px';
 canvas.height = reflectionHeight;
 canvas.width = reflectionWidth;
 
 d.style.width = reflectionWidth+'px';
 d.style.height = divHeight+'px';
 p.parentNode.replaceChild(d, p);
 
 d.appendChild(p);
 d.appendChild(canvas);
 
 context.save();
 
 context.translate(0,image.height-1);
 context.scale(1,-1);
 
 context.drawImage(image, 0, 0, reflectionWidth, image.height);
 
 context.restore();
 
 context.globalCompositeOperation = "destination-out";
 var gradient = context.createLinearGradient(0, 0, 0, reflectionHeight);
 
 gradient.addColorStop(1, "rgba(255, 255, 255, 1.0)");
 gradient.addColorStop(0, "rgba(255, 255, 255, "+(1-options['opacity'])+")");
 
 context.fillStyle = gradient;
 if (navigator.appVersion.indexOf('WebKit') != -1) {
 context.fill();
 } else {
 context.fillRect(0, 0, reflectionWidth, reflectionHeight*2);
 }
 }
 }
 } catch (e) {
 }
 },
 
 remove : function(image) {
 if (image.className == "reflected") {
 image.className = image.parentNode.className;
 image.parentNode.parentNode.replaceChild(image, image.parentNode);
 }
 }
}

function addReflections() {
 var rimages = document.getElementsByClassName('userAvatar');
 for (i=0;i<rimages.length;i++) {
 var rheight = null;
 var ropacity = null;
 
 var classes = rimages[i].className.split(' ');
 for (j=0;j<classes.length;j++) {
 if (classes[j].indexOf("rheight") == 0) {
 var rheight = classes[j].substring(7)/100;
 } else if (classes[j].indexOf("ropacity") == 0) {
 var ropacity = classes[j].substring(8)/100;
 }
 }
 
 Reflection.add(rimages[i], { height: rheight, opacity : ropacity});
 }
}

var previousOnload = window.onload;
window.onload = function () { if(previousOnload) previousOnload(); addReflections(); }