var LoadingBar = Class.create();
    LoadingBar.prototype = {
    
        initialize:function(nodeId){
            this.DOMNode = $(nodeId);
        },
        
        updateMessage:function(message)
        {
            this.DOMNode.update(message);
        },
        
        enable:function(message)
        {
            this.DOMNode.addClassName("enable");
            this.updateMessage(message);
        },
        
        disable:function()
        {
            window.setTimeout(function(){
                this.DOMNode.removeClassName("enable");
                this.updateMessage("");
            }.bind(this), 350);
        }
   
    }