function showNewsletter()
{
 x = screen.availWidth / 2 - 200;
 y = screen.availHeight / 2 - 400;
 NlReg = window.open('/resources/newsletter/register_pop.shtml?email=' + document.newsletter.email.value, "Newsletter",
"screenX=" + x + ",screenY=" + y +
",height=580,width=600,fullscreen=no,toolbar=no," +
"status=no,menubar=no,scrollbars=yes,resizable=yes," +
"directories=no,location=no");
 NlReg.focus();
}
function NlDetails()
{
 NlWin = window.open( "/resources/newsletter/info_pop.htm", "", 
                     "toolbar=no,fullscreen=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=425,height=335");
 NlWin.focus();
}
function Hmail(usr)
// write address on page to hide from 'spiders'
// recipient name passed as user.
{
 dmn = "towerdata.com";

 document.write('<a href=\"mai');
 document.write('lto:' + usr);
 document.write('@');
 document.write(dmn);
 document.write('\">');
 document.write(usr);
 document.write('@');
 document.write(dmn);
 document.write('</a>');
}
function Dmail(dmn, usr)
// write address on page to hide from 'spiders'
// recipient name passed as user.
{
 document.write(usr);
 document.write('@');
 document.write(dmn);
}