// $Id: validate.js,v 1.3 2000/08/02 11:55:24 polito Exp polito $
function CR_to_BR(s_element)
{
var s_output;
var s_input;
s_output = "";
s_input = s_element.value;
for (var i = 0; i < s_input.length; i++)
{
if ((s_input.charCodeAt(i) == 13) && (s_input.charCodeAt(i+1) == 10))
{
i++;
s_output += "
";
}
else
{
s_output += s_input.charAt(i);
}
}
return s_output;
}
function fix_element(element, message)
{
alert(message);
element.focus();
}
function format_currency(i_currency)
{
var i_cents;
i_currency = i_currency.toString().replace(/\$|\,/g,'');
if (isNaN(i_currency)) i_currency = "0";
i_cents = Math.floor((i_currency * 100 + 0.5) % 100);
i_currency = Math.floor(i_currency).toString();
if (i_cents < 10) cents = "0" + i_cents;
for (var i = 0; i < Math.floor((i_currency.length - (1 + i)) / 3); i++)
i_currency = i_currency.substring(0, i_currency.length - (4 * i + 3)) + ',' + i_currency.substring(i_currency.length - (4 * i + 3));
return ('$' + i_currency + '.' + cents);
}
function explain_form(s_fieldname, o_output, s_help_msg)
{
w_new = window.open('','','top=150,left=150,width=325,height=300');
if (!w_new.opener) w_new.opener = self;
with (w_new.document)
{
open();
write('');
write('');
close();
}
}
function check_email(o_email)
{
var s_trimmed_email = new String(trim_string(o_email.value));
var rx_email = /^(.+)@(.+)$/;
var rx_special_chars = "\\(\\)<>@,$/;:\\\\\\\"\\.\\[\\]";
var rx_valid_chars = "\[^\\s" + rx_special_chars + "\]";
var rx_quoted_user = "(\"[^\"]*\")";
var rx_ip_domain = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
var rx_atom = rx_valid_chars + '+';
var rx_word = "(" + rx_atom + "|" + rx_quoted_user + ")";
var rx_user = new RegExp("^" + rx_word + "(\\." + rx_word + ")*$");
var rx_domain = new RegExp("^" + rx_atom + "(\\." + rx_atom +")*$");
var a_match = s_trimmed_email.match(rx_email);
if (a_match == null)
{
fix_element(o_email, "E-mail address seems to be incorrect (check @ and .'s)");
return false;
}
var s_user = a_match[1];
var s_domain = a_match[2];
if (s_user.match(rx_user) == null)
{
fix_element(o_email, "Your e-mail username doesn't seem to be valid.");
return false;
}
var a_IP = s_domain.match(rx_ip_domain);
if (a_IP != null)
{
for (var i =1; i <= 4; i++)
{
if (a_IP[i] > 255)
{
fix_element(o_email, "Your e-mail Destination IP address is invalid!");
return false;
}
}
return true;
}
var a_domain = s_domain.match(rx_domain)
if (a_domain == null)
{
fix_element(o_email, "The domain name in your e-mail address doesn't seem to be valid.");
return false;
}
var rx_atoms = new RegExp(rx_atom,"g");
var a_dom = s_domain.match(rx_atoms);
var i_len = a_dom.length;
if (a_dom[a_dom.length - 1].length < 2 || a_dom[a_dom.length - 1].length > 3)
{
fix_element(o_email, "The e-mail address must end in a three-letter domain, or two letter country.");
return false;
}
if ( i_len < 2)
{
fix_element(o_email, "This e-mail address is missing a hostname!");
return false;
}
o_email.value = s_trimmed_email;
return true;
}
function trim_string(str)
{
var s_input = new String(str);
var i_start, i_end;
var s_trimmed;
var c_char;
i_end = s_input.length - 1;
i_start = 0;
c_char = s_input.charAt(i_start);
while ((i_start < i_end) && ((c_char == "\n") || (c_char == "\r") || (c_char == "\t") || (c_char == " ")))
{
i_start++;
c_char = s_input.charAt(i_start);
}
c_char = s_input.charAt(i_end);
while ((i_end >= 0) && ((c_char == "\n") || (c_char == "\r") || (c_char == "\t") || (c_char == " ")))
{
i_end--;
c_char = s_input.charAt(i_end);
}
if (i_start < i_end)
{
s_trimmed = s_input.substring(i_start, i_end + 1);
}
else
{
s_trimmed = "";
}
return s_trimmed;
}
function check_name(o_name)
{
if (o_name.value == "") { fix_element(o_name, "Your name is required!"); return false; }
o_name.value = trim_string(o_name.value);
}
function html_tag_rm(word)
{
var a;
var b;
var c;
var d;
var len;
var tag_check;
a = word.indexOf("<");
b = word.indexOf(">");
c = word.substring(0, a);
len = word.length;
if (b == -1)
b = a;
d = word.substring((b + 1), len);
word = c + d;
tag_check = word.indexOf("<");
if (tag_check != -1)
word = html_tag_rm(word);
return word;
}
function remove_html(s_element)
{
var content;
var checked_content;
content = s_element.value;
checked_content = html_tag_rm(content);
return checked_content;
}