$('<img />').attr('src', 'http://i38.servimg.com/u/f38/11/38/48/97/bannie15.png');
$('<img />').attr('src', 'http://i31.servimg.com/u/f31/11/11/99/48/bannie11.gif');
function changeBanniere(){
	$('#i_logo').attr('src', 'http://i31.servimg.com/u/f31/11/11/99/48/bannie12.png');
}
function initBanniere(){
	$('#i_logo').attr('src', 'http://i38.servimg.com/u/f38/11/38/48/97/bannie15.png');
}
$('#i_logo')[0].onmouseover = changeBanniere;
$('#i_logo')[0].onmouseout = initBanniere;