/**

 * 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) {

				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';

			

				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('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(); }