function home()
{
sub = window.open("index.html","_parent");
}
function column()
{
sub = window.open("column/column.htm","_parent");
}
function aboutus()
{
sub = window.open("aboutus/aboutus.htm","_parent");
}
function projects()
{
sub = window.open("projects/projects.htm","_parent");
}
function qa()
{
sub = window.open("qa/qa.htm","_parent");
}
function contact()
{
sub = window.open("contact/contact.htm","_parent");
}
function special()
{
sub = window.open("special/special.htm","_parent");
}
function sitemap()
{
sub = window.open("sitemap/sitemap.htm","_parent");
}