ch0 = new Image();
bk0 = new Image();
ch0.src = "home/exc_ser01.gif";
bk0.src = "home/exc_ser.gif";

ch1 = new Image();
bk1 = new Image();
ch1.src = "home/bear_spe01.gif";
bk1.src = "home/bear_spe.gif";

ch2 = new Image();
bk2 = new Image();
ch2.src = "home/plum_blo01.gif";
bk2.src = "home/plum_blo.gif";

ch3 = new Image();
bk3 = new Image();
ch3.src = "home/thru_roll01.gif";
bk3.src = "home/thru_roll.gif";

ch4 = new Image();
bk4 = new Image();
ch4.src = "home/radi_roll01.gif";
bk4.src = "home/radi_roll.gif";

ch5 = new Image();
bk5 = new Image();
ch5.src = "home/thru_ball01.gif";
bk5.src = "home/thru_ball.gif"; 

ch6 = new Image();
bk6 = new Image();
ch6.src = "home/bear_units01.gif";
bk6.src = "home/bear_units.gif";

ch7 = new Image();
bk7 = new Image();
ch7.src = "home/abtus01.gif";
bk7.src = "home/abtus.gif";

ch8 = new Image();
bk8 = new Image();
ch8.src = "home/products01.gif";
bk8.src = "home/products.gif";

ch9 = new Image();
bk9 = new Image();
ch9.src = "home/contus01.gif";
bk9.src = "home/contus.gif";