function Rand(min, max)

        {

    		return Math.floor(Math.random() * (max - min + 1)) + min;

        }

        Page = (

            {

            	makeBranch:function(sx, sy, ln, an, sz, lv)

            	{

            		if(lv>this.maxl) return;

            		lv++;

            		if(sz<1) sz=1;

            		var path = this.r.path().attr(

            		{

            			"stroke": '#030',

            			"stroke-width": sz,

            			"stroke-linejoin": "miter",

						"stroke-linecap":"butt",

						"stroke-miterlimit":1

            		});

            		path.moveTo(sx,sy,10);

					var ex = sx + ln * Math.cos(an) ;

					var ey = sy + ln * Math.sin(an) ;

					path.lineTo ( ex, ey ) ;

					if(lv>this.maxl)

					{

						var col=Rand(0,(this.cols.length-1));

            			var dot = this.r.circle(ex, ey, sz*2).attr(

            			{

            				fill: this.cols[col],

            				stroke: this.cols[col]

            			});

					}

					var sub_branch = Rand (1, this.max_sub_branch - 1) + 2 ;

					var branch_length_dimin = 0.5 + Math.random()/2 ;

					for ( var i=0; i < sub_branch; i ++ ) 

					{

						var newLength = ln * branch_length_dimin * 0.9;

						var newAngle = an + Math.random() * this.max_sub_angle - this.max_sub_angle / 2 ;

						var newSize = sz - 1 ;

						this.makeBranch ( ex, ey, newLength, newAngle, newSize, lv) ;

					}

            	},

            	ini: function()

            	{

            		this.cols=['#f00','#ff0','#fa0','#f0f'];

            		var w = 640;

            		var h = 480;

            		this.maxl=6;

					this.max_sub_branch = 2 ;

					this.max_sub_angle = 3*Math.PI/4 ;

					this.max_size = 8 ;

					this.branch_length = 5 ;

            		this.r = Raphael("graph", w, h);

            		this.makeBranch(w/2, h-5, h/4.5, -Math.PI/(Rand(10,60)/10), 5, 0);

            	}

            });

            window.addEvent('domready', Page.ini.bind(Page))