Размер загружаемого фото в пост. Ограничение размера и убрать оригинал

 
qq.FileUploaderBasic = function(o){
    this._options = {
        // set to true to see the server response
        debug: false,
        action: '/server/upload',
        params: {},
        button: null,
        multiple: true,
        maxConnections: 3,
        // validation        
        allowedExtensions: [],               
        sizeLimit: '2097152',   
        minSizeLimit: 0,                             
        // events
        // return false to cancel submit
        onSubmit: function(id, fileName){},
        onProgress: function(id, fileName, loaded, total){},
        onComplete: function(id, fileName, responseJSON){},
        onCancel: function(id, fileName){},
        // messages                
        messages: {
            typeError: "{file} has invalid extension. Only {extensions} are allowed.",
            sizeError: "{file} is too large, maximum file size is {sizeLimit}.",
            minSizeError: "{file} is too small, minimum file size is {minSizeLimit}.",
            emptyError: "{file} is empty, please select files again without it.",
            onLeave: "The files are being uploaded, if you leave now the upload will be cancelled."            
        },
        showMessage: function(message){
            alert(message);
        }               
    };
    qq.extend(this._options, o);
 
    // number of files being uploaded
    this._filesInProgress = 0;
    this._handler = this._createUploadHandler(); 
 
    if (this._options.button){ 
        this._button = this._createUploadButton(this._options.button);
    }
 
    this._preventLeaveInProgress();         
};