function Partners( elem, params ){
  this.element = jQuery(elem);
  this.params = params || {};

  this.maxRows = this.params.maxRows || 1;
  this.itemsInRow = this.params.itemsInRow || 1;
  this.multiplier = this.params.multiplier || 1;
  this.classCollapsed = this.params.classCollapsed || 'JS-Partners-collapsed';
  this.classExpanded = this.params.classExpanded || 'JS-Partners-expanded';

  this.__construct();
}
  Partners.prototype.__construct = function(){
    this._isBusy = false;

    this.list = this.element.find('.JS-Partners-List');
    this.items = this.list.find('.JS-Partners-Items');
    this.toolbar = this.element.find('.JS-Partners-Toolbar');
    this.toggler = this.element.find('.JS-Partners-Toggler');

    this.totalRows = Math.ceil(this.items.length / this.itemsInRow);
    if( this.totalRows <= this.maxRows ){
      this.toolbar.remove();
    }else{
      this._init();
    }
  };
  Partners.prototype._init = function(){
    var context = this;

    this._rowHeight = this.items.eq(0).outerHeight(true);
    this._minHeight = this.maxRows * this._rowHeight;
    this._maxHeight = this.totalRows * this._rowHeight;

    this[this.element.hasClass('JS-Partners-collapsed') || this.element.hasClass(this.classCollapsed) ? 'collapse' : 'expand']();

    this.toggler.bind('click', function(){ return context.toggle.apply(context, arguments) });
  };


  Partners.prototype.expand = function( isAnim ){
    var context = this;

    this._isBusy = true;

    this.element.removeClass('JS-Partners-collapsed').removeClass(this.classCollapsed)
                .addClass('JS-Partners-expanded').addClass(this.classExpanded);

    this.list.css({'height' : this._minHeight + 'px'})
             .animate({'height' : this._maxHeight + 'px'},
                      (this._maxHeight - this._minHeight) * this.multiplier,
                      function(){ context.cb_expand.call(context) });
  };
  Partners.prototype.cb_expand = function(){
    this._isBusy = false;
  };


  Partners.prototype.collapse = function( isAnim ){
    var context = this;

    this._isBusy = true;

    this.list.css({'height' : this._maxHeight + 'px'})
             .animate({'height' : this._minHeight + 'px'},
                      (this._maxHeight - this._minHeight) * this.multiplier,
                      function(){ context.cb_collapse.call(context) });
  };
  Partners.prototype.cb_collapse = function(){
    this._isBusy = false;
    this.element.removeClass('JS-Partners-expanded').removeClass(this.classExpanded)
                .addClass('JS-Partners-collapsed').addClass(this.classCollapsed);
  };


  Partners.prototype.toggle = function(){
    if( !this._isBusy ){
      this[this.element.hasClass('JS-Partners-collapsed') ? 'expand' : 'collapse'](true);
    }

    return false;
  };
/*--/Partners--*/