preload('img1_on','images/img1_on.jpg')
preload('img1_onc','images/img1_on.jpg')
preload('img2_on','images/img2_on.jpg')
preload('img2_onc','images/img2_on.jpg')
preload('img3_on','images/img3_on.jpg')
preload('img3_onc','images/img3_on.jpg')
preload('img4_on','images/img4_on.jpg')
preload('img4_onc','images/img4_on.jpg')
preload('img5_on','images/img5_on.jpg')
preload('img5_onc','images/img5_on.jpg')
preload('img6_on','images/img6_on.jpg')
preload('img6_onc','images/img6_on.jpg')

preload('img1_off','images/img1_off.jpg')
preload('img1_offc','images/img1_off.jpg')
preload('img2_off','images/img2_off.jpg')
preload('img2_offc','images/img2_off.jpg')
preload('img3_off','images/img3_off.jpg')
preload('img3_offc','images/img3_off.jpg')
preload('img4_off','images/img4_off.jpg')
preload('img4_offc','images/img4_off.jpg')
preload('img5_off','images/img5_off.jpg')
preload('img5_offc','images/img5_off.jpg')
preload('img6_off','images/img6_off.jpg')
preload('img6_offc','images/img6_off.jpg')