if (!win) {
    win = new Ext.Window({
        title: 'View Message',
      height: 600,
      width: 800,
      layout:'fit',
      closeAction:'hide',
      plain: true,
      items: [{
        xtype: 'form',
        id: 'view_form',
        method: 'POST',
        layout: 'border',
        border: false,
        frame: true,
        plain: true,
        style: 'padding: 4px;',
        items:[ {
          region: 'north',
          layout: 'column',
          height: 150,
          items:[{
            columnWidth:.5,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'textfield',
              valueField: 'userID',
              displayField: 'Name',
              fieldLabel: 'Users',
              anchor:'95%'
            }]
          },{
            columnWidth:.5,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'textfield',
              valueField: 'message_type',
              displayField: 'message_type',
              fieldLabel: 'Message Type',
              name: 'message[category]',
              anchor:'95%'
            }]
          },{
            columnWidth:1.0,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'textfield',
              valueField: 'locations_id',
              displayField: 'name',
              fieldLabel: 'Location',
              anchor:'97.5%'
            }]
          },{
            columnWidth:1.0,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'textfield',
              valueField: 'user_type',
              displayField: 'user_type',
              fieldLabel: 'User Type',
              anchor:'97.5%'
            }]
          },{
            columnWidth:.25,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'datefield',
              fieldLabel: 'Startdate',
              anchor:'90%'
            }]
          },{
            columnWidth:.25,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'timefield',
              fieldLabel: 'Starttime',
              anchor:'90%'
            }]
          },{
            columnWidth:.25,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'datefield',
              fieldLabel: 'Enddate',
              anchor:'90%'
            }]
          },{
            columnWidth:.25,
            layout: 'form',
            border: false,
            items: [{
              xtype: 'timefield',
              fieldLabel: 'Endtime',
              anchor:'90%'
            }]
          },{
            columnWidth:1.0,
            layout: 'form',
            border: false,
            items: [{
              xtype:'textfield',
              fieldLabel: 'Title',
              anchor:'97.5%'
            }]
          }]
          },{
            xtype: 'panel',
            layout: 'fit',
            region: 'center',
            border: false,
            items: [{
              xtype:'textarea',
              name: 'message[text]'
            }]
          }]
        }]
    });
  }