Dozens of pictures and videos are trending on Twitter and YouTube showing campaigners from America to Lebanon setting fire to the black jihadist standard.The groundswell of disgust comes after the sickening beheadings of two U.S. journalists which were even denounced by hate cleric Abu Qatada.One image posted on Twitter shows demonstrators in London torching an IS flag with the message: 'Arab World's version of the Ice Bucket Challenge.'Another shows a middle-aged woman holding a burning flag with the defiant tweet: 'Burn that flag! Kill the flagwavers!'A video uploaded to YouTube which has more than 100,000 views also urged everyone else to follow suit.It said: 'I nominate the whole world to the #BurnISISFlagChallenge. You have 24 hours. GO!!'The movement, which uses the hashtags #BurnISISFlagChallenge and #BurnISIS, started in Lebanon with a group of students disgusted by the beheading of one of their soldiers last month.Yesterday, even Qatada, who was extradited from Britain to Jordan on terror charges in July last year, condemned the barbaric tactics employed by the Islamic State.Qatada was once described by a Spanish judge as the right-hand man in Europe of al-Qaeda terror network founder Osama bin Laden.Speaking to reporters from the dock at an Amman courthouse about the beheadings of U.S. journalists James Foley and Steven Sotloff, he said: 'Journalists should not be killed because they are messengers of the truth.'He also branded IS 'a killing and demolition machine' and likened its fighters to 'dogs of hellfire'.(dailymail.co.uk)Bakudaily.Az