Removed graphael.js dependency

gLayer.js

@@ -0,0 +1,60 @@
+/*******************************************************************************
+20/04/10 21:41 -- http://jsyang.ca
+
+	gLayer -- each is a <CANVAS>-backed object
+
+	imgs	= array of image filenames to load
+	fn	= callback when done loading imgs
+
+	i	= array of HTMLImageElements
+	e	= HTMLElement
+	c	= DrawingContext
+	
+*******************************************************************************/
+
+function gLayer(imgs,size,fn){
+
+    this.w=size[0];
+    this.h=size[1];
+
+	this.i=[];
+	this.iLoaded=0;
+
+	this.callback=fn;
+
+	// Check progress of loading event
+	this.checkProgress=function(obj,n)
+	{
+		if(++obj.iLoaded==n) obj.callback(obj);
+	};
+
+
+	this.e=document.createElement("canvas");
+	if(size!=undefined)
+	{
+		this.e.width=this.w;
+		this.e.height=this.h;
+	}
+	this.c=this.e.getContext('2d');
+
+	document.body.appendChild(this.e);
+
+    // Clear the canvas for the gLayer
+    this.clear=function()
+    {
+        this.c.clearRect(0,0,this.w,this.h);
+    };
+
+    // Load the images
+	for(var j in imgs)
+	{
+		var a=new Image();
+		a.src=imgs[j];
+		this.i.push(a);				
+		a.onerror=function(){ alert("Error in loading "+this.src); };
+		if(fn!=undefined) a.onload=this.checkProgress(this,imgs.length);
+	}
+
+	// If we didn't have any images, do the callback
+	if(fn && !imgs.length) fn(this);
+}