/**


 * reflection.js v2.0


 * http://cow.neondragon.net/stuff/reflection/


 * Freely distributable under MIT-style license.


 */


 


/* From prototype.js */


if (!document.myGetElementsByClassName) {


	document.myGetElementsByClassName = 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) {


				/* Fix hyperlinks */


                if(p.parentElement.tagName == 'A') {


	                var d = document.createElement('a');


	                d.href = p.parentElement.href;


                }  


                    


				/* 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.display = 'block';


				reflection.style.height = p.height+"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;


					context.rect(0, 0, reflectionWidth, reflectionHeight*2);


					context.fill();


				}


			}


		} 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.myGetElementsByClassName('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(); }