function formInterfacecheckbox() {}
formInterfacecheckbox.prototype = new formInterfaceField();

formInterfacecheckbox.prototype.value = function(value){
    
    
    if(value == 0)
        this.field.attr('checked', '');
    else
        this.field.attr('checked', 'checked');
    
}

formInterfacecheckbox.prototype.clear = function(){
        this.field.attr('checked', '');

}