function popup(){

	var fenetre=window.open('', 'popup', 'width=830,height=580,scrollbars=1,resizable=0,left=' + ((screen.width - 830)/2) + ',top=100');	

	fenetre.focus();

	}

	

	

function popup_original(){

	var fenetre=window.open('', 'popup', 'width=410,height=600,scrollbars=0,resizable=0,left=' + ((screen.width - 410)/2) + ',top=100');	

	fenetre.focus();

	}