weee.js

		Node : function(x,y) {
	            var t = this
		    t.el = document.createElementNS("http://www.w3.org/2000/svg", this.shape)
		    t.el.setAttribute('r', 1)
		    var changeOP = function() {
			t.el.setAttribute('opacity','0.5')
		    }
	            var ee = window.setTimeout(changeOP,1000)
		    this.root.appendChild(t.el)
		    return this
		},