function showFeedback()
{
window.open('../html/comment.htm', 'travel', 'scrollbars=yes,width=450,height=,600,left=150,top=10')
}
function showaboutus()
{
window.open('../html/about us.htm', 'travel', 'scrollbars=yes,width=440,height=,600,left=150,top=10')
}
function showadv()
{
window.open('../html/advertise.htm', 'travel', 'scrollbars=yes,width=450,height=,600,left=150,top=10')
}