change_ve_a= new Image();
change_ve_a.src = "ind_nav/ind_01.gif"
change_ve_b= new Image();
change_ve_b.src = "ind_nav/ind_o_01.gif"

change_ne_a= new Image();
change_ne_a.src = "ind_nav/ind_02.gif"
change_ne_b= new Image();
change_ne_b.src = "ind_nav/ind_o_02.gif"

change_ka_a= new Image();
change_ka_a.src = "ind_nav/ind_03.gif"
change_ka_b= new Image();
change_ka_b.src = "ind_nav/ind_o_03.gif"

change_ko_a= new Image();
change_ko_a.src = "ind_nav/ind_04.gif"
change_ko_b= new Image();
change_ko_b.src = "ind_nav/ind_o_04.gif"

change_li_a= new Image();
change_li_a.src = "ind_nav/ind_05.gif"
change_li_b= new Image();
change_li_b.src = "ind_nav/ind_o_05.gif"