[B@rmaley.e><e]

function inherit(Child, Parent) {
  var temp = new Parent();
  for(var p in temp) if(temp.hasOwnProperty(p)) delete temp[p];
  Child.prototype = temp;
  Child.constructor = Child;
}

function Tool(name, src) {
  this.id = name;
  this.src = src; 
}

inherit(Tool, Image);

var o = new Tool("tool1", "/.../arr-right.png");
var o1 = new Tool("tool2", "/.../arr-left.png");

alert([[o.id, o.src], [o1.id, o1.src]].join('\n'))