function abrir(title,url,width,height){    
        dhxWins = new dhtmlXWindows();         
        dhxWins.setSkin("modern_red");
        var win = dhxWins.createWindow('janela1', 1, 1, width, height);     
        win.setText(title);
        win.attachURL(url);                    
        dhxWins.window('janela1').center();
    }

    function fechar(id) {   
        dhxWins = new dhtmlXWindows();         
        top.dhxWins.window(id).close(); 
    }