d = document
// preload
if(d.images){
auth0= new Image(); auth0.src ="images/b1.gif"
auth1= new Image(); auth1.src ='images/b1_over.gif'

reg0= new Image(); reg0.src ='images/b2.gif'
reg1= new Image(); reg1.src ='images/b2_over.gif'

stat0= new Image(); stat0.src ='images/b3.gif'
stat1= new Image(); stat1.src ='images/b3_over.gif'

help0= new Image(); help0.src ='images/b4.gif'
help1= new Image(); help1.src ='images/b4_over.gif'

price0= new Image(); price0.src ='images/b5.gif'
price1= new Image(); price1.src ='images/b5_over.gif'

map0= new Image(); map0.src ='images/b6.gif'
map1= new Image(); map1.src ='images/b6_over.gif'

eng0= new Image(); eng0.src ='images/b7.gif'
eng1= new Image(); eng1.src = 'images/b7_over.gif'

}