function main(){
document.write("");
}
function menu_1(){
document.write("");
}
function menu_2(){
document.write("");
}
function main_2(){
document.write("");
}
function main_3(){
document.write("");
}
function menu_5(){
document.write("");
}
function main_3(){
document.write("");
}
function sky(){
document.write("");
}