Utils = {
  initialized: false,
  server_url:'http://games.rawrgamer.com/crossdomain/',
  init: function() {
    if(!this.initialized) {
      this.initialized = true;      
      this.comm = document.createElement('iframe');
      this.comm.src = this.server_url;
      this.comm.name = "rg_comm";
      this.comm.id = this.comm.name;
      this.comm.style.position = 'absolute';
      this.comm.style.right = '-200px';
      this.comm.style.bottom = '-200px';
      this.comm.style.width = '1px';
      this.comm.style.height = '1px';
      this.addEventListener(this.comm,'load',function(){Utils.comm_loaded();});
      document.body.appendChild(this.comm);
      
      this.destroyer = document.createElement('div');
      this.destroyer.style.position = 'absolute';
      this.destroyer.style.right = '0px';
      this.destroyer.style.bottom = '0px';
      this.destroyer.style.display = 'none';
      document.body.appendChild(this.destroyer);
      
      this.enddiv = document.createElement('div');
      this.enddiv.style.width = '0px';
      this.enddiv.style.height = '0px';
      document.body.appendChild(this.enddiv);
      
      this.addEventListener(window,'load',function(){
        Utils.resize_to_content();
      });
    }
  },
  addEventListener: function(obj,event,func) {
    if(obj.addEventListener) {
      obj.addEventListener(event,func,false);
    }
    else if (obj.attachEvent) {
      obj.attachEvent('on'+event,func);
    }
    else {
      obj['on'+event] = func;
    }
  },
  call_method: function(method,params) {
    params['m'] = method;
    var query = [];
    for(var key in params) {
      query.push(encodeURIComponent(key)+'='+encodeURIComponent(params[key]));
    }
    var src = this.comm.src.match(/[^#]*/)[0]+ "#"+query.join('&');
    //this.comm.src = src;
    var comm = window.frames[this.comm.name];
    if(comm) {
      comm.location.href = src;
    }
    else {
      this.comm.src = src;
    }
  },
  comm_loaded: function() {
    
  },
  destroy_dom: function(dom) {
    this.destroyer.appendChild(dom);
    this.destroyer.innerHTML = '';
  },
  resize_to_content: function() {
    var new_size = Math.min(this.enddiv.offsetTop,4000);
    if(new_size != this.last_resize) {
      this.last_resize = new_size;
      Utils.call_method('resize_canvas',{
        'h':new_size+'px'
      });
    }
  },
  start_resize_timer: function() {
    if(!this.resize_timer) {
      this.resize_timer = setInterval(function(){Utils.resize_to_content()},1000);
    }
  },
  stop_resize_timer: function() {
    if(this.resize_timer) {
      clearInterval(this.resize_timer);
      this.resize_timer = false;
    }
  },
  request_dialog: function(request_text,action) {
    Utils.call_method('request_dialog',{
      'action':action
    });
  },
  signup_dialog: function(text,binding) {
    var params = {
      text:text
    };
    if(binding) {
      params['binding'] = binding;
    }
    Utils.call_method('signup_dialog',params);
  },
  scroll_to: function(x,y) {
    Utils.call_method('scroll_to',{
      x:x,
      y:y
    });
  }
}