/**
 * reflection.js v1.6
 *
 * Contributors: Cow http://cow.neondragon.net
 *               Gfx http://www.jroller.com/page/gfx/
 *               Sitharus http://www.sitharus.com
 *               Andreas Linde http://www.andreaslinde.de
 *               Tralala, coder @ http://www.vbulletin.org
 *
 * Freely distributable under MIT-style license.
 */
 
/* From prototype.js */

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)             
            {                
                if (document.all && !window.opera)                
                {                    
                    if( child.parentElement.tagName == 'A')                    
                    {                                                        
                        child.setAttribute('link', child.parentNode.getAttribute('href'));                    
                    }                
                }                                
            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] != "reflect") {                    
                    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';                
            p.setAttribute('border','0');                
            var anchorTag = document.createElement('a');                
            anchorTag.setAttribute('href', p.link );                
            p.removeAttribute('link');                                            
            
            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);                                
            
            anchorTag.appendChild(p);                
            d.appendChild(anchorTag)                                
            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('reflect');        
    
    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(); }