function isEmpty(s){   
return ((s == null) || (s.length == 0))
}
function isWhitespace (s){   
var i;
// Is s empty?
if (isEmpty(s)) 
return true;
// Search through string's characters one by one until we find a non-whitespace character.
// When we do, return false; if we don't, return true.
for (i = 0; i < s.length; i++)
{   
// Check that current character isn't whitespace.
var whitespace = " \t\n\r"
var c = s.charAt(i);
if (whitespace.indexOf(c) == -1) 
return false;
}
// All characters are whitespace.
return true;
}

function isready()
{

if (isWhitespace (document.register.fname.value)){
alert ('Please enter your First Name.');
document.register.fname.focus();
return false;
}

else if (isWhitespace (document.register.lname.value)){
alert ('Please enter your Last Name.');
document.register.lname.focus();
return false;
}

else if (isWhitespace (document.register.title.value)){
alert ('Please enter your Title.');
document.register.title.focus();
return false;
}

else if (isWhitespace (document.register.company.value)){
alert ('Please enter your Company Name.');
document.register.company.focus();
return false;
}

else if (isWhitespace (document.register.address1.value)){
alert ('Please enter your Address.');
document.register.address1.focus();
return false;
}
else if (isWhitespace (document.register.city.value)){
alert ('Please enter your City.');
document.register.city.focus();
return false;
}

else if (isWhitespace (document.register.zip.value)){
alert ('Please enter your Zip Code.');
document.register.zip.focus();
return false;
}

else if (isWhitespace (document.register.phone.value)){
alert ('Please enter your Telephone Number.');
document.register.phone.focus();
return false;
}

else if (isWhitespace (document.register.email.value)){
alert ('Please enter your Email Address.');
document.register.email.focus();
return false;
}

return true;
}