if (document.images) {
swi1 = new Image
swi1on = new Image
swi2 = new Image
swi2on = new Image
swi3 = new Image
swi3on = new Image
swi4 = new Image
swi4on = new Image
swi5 = new Image
swi5on = new Image
swi6 = new Image
swi6on = new Image
swi7 = new Image
swi7on = new Image
swi8 = new Image
swi8on = new Image
swi9 = new Image
swi9on = new Image

swi1.src = "swimming/pfw.jpg"
swi1on.src = "swimming/pfw-on.jpg"
swi2.src = "swimming/ssb.jpg"
swi2on.src = "swimming/ssb-on.jpg"
swi3.src = "swimming/mcp.jpg"
swi3on.src = "swimming/mcp-on.jpg"
swi4.src = "swimming/twe.jpg"
swi4on.src = "swimming/twe-on.jpg" 
swi5.src = "swimming/spc.jpg"
swi5on.src = "swimming/spc-on.jpg" 
swi6.src = "swimming/bce.jpg"
swi6on.src = "swimming/bce-on.jpg"
swi7.src = "swimming/ppo.jpg"
swi7on.src = "swimming/ppo-on.jpg" 
swi8.src = "swimming/tpp.jpg"
swi8on.src = "swimming/tpp-on.jpg" 
swi9.src = "swimming/psp.jpg"
swi9on.src = "swimming/psp-on.jpg"  
}