img_ban1 = new Image();
img_ban2 = new Image();
img_ban3_en = new Image();
img_ban4_en = new Image();
img_ban5_en = new Image();
img_ban1.src = '/images/ban1.jpg';
img_ban2.src = '/images/en/ban2.jpg';
img_ban3_en.src = '/images/en/ban3.jpg';
img_ban4_en.src = '/images/en/ban4.jpg';
img_ban5_en.src = '/images/en/ban5.jpg';