function popup(mylink, windowname)
{
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string')
   href=mylink;
else
   href=mylink.href;
window.open(href, windowname, 'width=600,height=400,scrollbars=yes');
return false;
}


function validate_email(field,alerttxt)
{
with (field)
{
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
if (apos<1||dotpos-apos<2) 
  {alert(alerttxt);return false;}
else {return true;}
}
}


function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
  {alert(alerttxt);return false;}
else {return true}
}
}


function validate_feedback(thisform)
{
with (thisform)
{
if (validate_required(name,"Your name must be filled out!")==false)
  {name.focus();return false;}
  
if (validate_required(email,"Email must be filled out!")==false)
  {email.focus();return false;}

if (validate_email(email,"Not a valid e-mail address!")==false)
  {email.focus();return false;}
}
}


function validate_reservation(thisform)
{
with (thisform)
{
if (validate_required(name,"Your name must be filled out!")==false)
  {name.focus();return false;}
  
if (validate_required(email,"Email must be filled out!")==false)
  {email.focus();return false;}

if (validate_email(email,"Not a valid e-mail address!")==false)
  {email.focus();return false;}
  
if (validate_required(date,"A date must be specified!")==false)
  {email.focus();return false;}
  
if (validate_required(count,"The number of people must be filled out!")==false)
  {email.focus();return false;}
}
}