/**
 * reflection.js v1.7
 *
 * 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 : 0.3,
	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 temp_height;
			var temp_width;

			temp_height=parseInt(p.style.height.replace("px",""));
			temp_width=parseInt(p.style.width.replace("px",""));

			var classes = p.className.split(' ');
			var newClasses = '';
			for (j=0;j<classes.length;j++) {
				if (classes[j] != "reflect") {
					if (newClasses) {
						newClasses += ' '
					}
					
					newClasses += classes[j];
				}
			}
			if (document.all) {
				var reflectionHeight = Math.floor(temp_height*options['height']);
				var divHeight = Math.floor(temp_height*(1+options['height']));
				var reflectionWidth = temp_width;

			} else {
				var reflectionHeight = Math.floor(p.getAttribute("height")*options['height']);
				var divHeight = Math.floor(p.getAttribute("height")*(1+options['height']));
				var reflectionWidth = p.getAttribute("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';

				if (p.getAttribute("align")=="left") p.style.cssText+=";float:left";
				if (p.getAttribute("align")=="right") p.style.cssText+=";float:right";
			
				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 = "-"+(temp_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';

				reflection.style.marginTop="2px";
				d.style.marginBottom="4px";

				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';
					if (p.getAttribute("align")=="left") p.style.cssText+=";float:left";
					if (p.getAttribute("align")=="right") p.style.cssText+=";float:right";
					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;
					canvas.style.marginTop="2px";
					d.style.marginBottom="4px";
					
					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);
		}
	}
}

var done=new Array();

function not_already_done(src) {
	for (var y=0;y<done.length;y++) {
		if (done[y]==src) return false;
	}
	return true;
}

function pre_parse_reflect() {
	if ($("real_content")) {
		var ex_images = $("real_content").getElementsByTagName('img');
	
		var counter=ex_images.length;

		for (var x=0;x<counter*2;x++) {
			if (ex_images[x]) {
				if (ex_images[x].getAttribute("rel")!="noreflect") {
					if (not_already_done(ex_images[x].src)) { // STUPID IE !!!!!
						done.push(ex_images[x].src);
						var rheight = null;
						var ropacity = null;
						//IDIOT TRICK FOR GETTING SIZES///
							var ex_tmp_image=document.createElement('img');
							ex_tmp_image.src=ex_images[x].src;
							ex_images[x].style.height=ex_tmp_image.height+"px";
							ex_images[x].style.width=ex_tmp_image.width+"px";
						////////////////////////////////
							ex_images[x].className="reflect";
						Reflection.add(ex_images[x], { height: rheight, opacity : ropacity});
					}
				}
			} else {
				break;
			}
		}

	}
}


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

