var CommonCls = Class.create();

CommonCls.prototype = {
    initialize: function(){
    
    },
    
    errorMessage: function(){
        
    },
    
    uploadForm: function(){
        var form = $('upload_form').style.display;
        if(form == ''){
            $('upload_form').style.display = 'none';
        }else if(form == 'none'){
            $('upload_form').style.display = '';
        }
    },
    
    updateRecentFile: function(){
        var url = './server.php?action=updateRecentFile';
        var rec = new Ajax.Updater('new_file', url);
    },


    updateRecentKeyword: function(){
        var url = './server.php?action=updateRecentKeyword';
        var rec = new Ajax.Updater('new_keyword', url);
    }
};

var Common = new CommonCls();