Two young men have been locked up by a judge after he described their attack on a drunken man as an example of the "yobbish behaviour" causing concern to the public and the Prime Minister.

This week in a warning to yobs Tony Blair declared that a central theme of his third term in office was to regain respect in society. He said people were "rightly fed-up" with yobbish behaviour and Friday and Saturday night binge-drinking "which makes our town centres no-go areas for respectable citizens".

Liam Brogden, 20, of Oakworth, Holme Wood, Bradford, was sentenced to 16 months in a young offenders institution after a Court heard how he had repeatedly kicked Adrian Bartle in the head as he lay unconscious on the ground.

Yesterday Bradford Crown Court heard that Mr Bartle had been attacked in Bradford city centre after he was said to have thrown a bottle from a taxi, but Judge Roger Scott said even if he had done that he did not deserve to be stamped on by Brogden.

The judge highlighted one witness statement in which he said he was "sickened" by Brogden's actions and his own barrister conceded that it was more by luck than good judgement that Mr Bartle was not more seriously hurt.

During the hearing Judge Scott insisted that Brogden and his co-accused 20-year-old John Fay, of Halesworth Crescent, Holme Wood, should look at the photographs of the battered and bruised Mr Bartle.

The court heard that the incident took place on the night England's game against France in the Euro 2004 competition last June and Mr Bartle accepted he was drunk at the end of the night.

He remembered the taxi door being opened and being punched, but his next memory was being in hospital.

Both Brogden and Fay pleaded to a charge of assault, but Fay was not involved in any kicking and unlike Brogden he had no previous convictions.

Fay was sentenced to four months in a young offenders institution.

Barristers for both men said they wished to apologise to the victim of the attack and Brogden's barrister Ken Green accepted that custody was inevitable for offences of this nature and seriousness.

He said Brogden was not ordinarily a violent man and he was horrified when he saw the photographs.

Fay's barrister John Sleightholme said there had been an exchange of words between Mr Bartle and Brogden and it was only when the bottle was thrown that his client reacted.

Mr Sleightholme handed in references on behalf of Fay and told Judge Scott that he now had a two-month old child.

But the judge said those who committed such offences must expect custody.

"There is public concern and indeed the Prime Minister has expressed concern about yobbish behaviour of which this is an unfortunate example," said Judge Scott.

"Fortunately the injuries to this man, unpleasant though they be, are not a fractured nose, fractured cheekbones or jaw."