function ad4000(){
window.open('./demo/4000.htm','ad','width=800,height=550,left=0,top=0,resizable=0,scrollbars=auto')
}
function ad5000(){
window.open('./demo/5000.htm','ad','width=800,height=550,left=0,top=0,resizable=0,scrollbars=auto')
}
function ad5000_2(){
window.open('./demo/5000_2.htm','ad','width=800,height=550,left=0,top=0,resizable=0,scrollbars=auto')
}