Important alert: (current site time 7/15/2013 12:54:18 PM EDT)
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Some web sites like tobacco industry
require by federal law that you check
the age of every visitor; this
JavaScript code will ask your
date of birth and then check to see
if Are old enough to see the site.
This my look s t u p i d but that what
the feral law requires.
This will create a cookie that will
check on very page of the site if you
have checked your age.
I have collected lines of codes from many
places to put this together and I thank
every one for their code.
This is intended for training purpose only.
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Click here for a copy-and-paste
friendly version of this code!
'**************************************
' for :Age Check Verify
'**************************************
<head>
<title>agecheck.htm</title>
<script language="javascript">
<!--
var pos = document.cookie.indexOf("UnderAge=");
if (pos == false)
{
location = "ageok.htm";
}
function y2k(number) { return (number < 1000) ? number + 1900 : number; }
function isDate(day,month,year) {
var today = new Date();
year = ((!year) ? y2k(today.getYear()):year);
month = ((!month) ? today.getMonth():month-1);
if (!day) return false
var test = new Date(year,month,day);
if ( (y2k(test.getYear()) == year) &&
(month == test.getMonth()) &&
(day == test.getDate()) )
return true;
else
return false
}
function getMonthLength(month,year,julianFlag)
{
var ml;
if(month==1 || month==3 || month==5 || month==7 || month==8 || month==10||month==12)
{ml = 31;}
else {
if(month==2) {
ml = 28;
if(!(year%4) && (julianFlag==1 || year%100 || !(year%400)))
ml++;
}
else
{ml = 30;}
}
return ml;
}
function CheckAge(form)
{
var myLimit = 21;
// Get Current Date
Today=new Date();
var yd = Today.getYear();
var md = Today.getMonth();
var dd = Today.getDate();
//check for year on case netscape browser
if (yd < 1900)
{
yd = yd + 1900;
}
// Get Date from the form
var yb = form.yb.value;
var mb = form.mb.options[form.mb.selectedIndex].value;
var db = form.db.options[form.db.selectedIndex].value;
MNames=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep",
"Oct","Nov","Dec");
if((db == 0) ||
(mb == 0) ||
(yb == 0))
{
alert("You must enter a valid date");
return;
}
else
{
if (isDate(db,mb,yb)==false)
{
alert("You must enter a valid date");
return;
}
}
// Month length 0->use calendar length
var mLength = 0;
// 0 if Gregorian, 1 is Julian
var isJulian = 1;
var ma=0;
var ya=0;
var da = dd-db;
// This is the all-important day borrowing code.
if(da<0)
{
md--;
// Borrow months from the year if necesssary.
if(md<1)
{
yd--;
// Determine no. of months in year
if(mLength)
{md=md+parseInt(365/mLength);}
else
{md=md+12;}
}
if(mLength==0) // Use real month length if no fixed
{ // length is indicated - note that we add a leap day if necessary.
ml=getMonthLength(md,yd,isJulian);
da=da+ml;
}
// For this case, everything works like it did in elementary school.
else
{da+=mLength;} // Use fixed month length
}
ma = md - mb;
// Month borrowing code - borrows months from years.
if(ma<0)
{
yd--;
if(mLength!=0)
{ma=ma+parseInt(365/mLength);}
else
{ma=ma+12;}
}
ya = yd - yb;
// Find if you are over AgeLimit.
if(ya>=myLimit)
{
makeCookie("UnderAge",false);
location = "ageok.htm";
}
else
{
alert("Sorry, you are not allowed to view this site.");
}
}
//Cookie things
function makeCookie(cookieName,cookieData)
{
var expiry = new Date();
expiry.setTime(expiry.getTime() + 1 * (24 * 60 * 60 * 1000));
setCookie(cookieName, cookieData, expiry);
}
function setCookie(cookieName, cookieData, expiry)
{
document.cookie = cookieName + "=" + escape(cookieData) + "; expires=" + expiry.toGMTString();;
}
//-->
</SCRIPT>
</HEAD>
<body>
<FORM METHOD="post">
<TABLE cellSpacing=0 cellPadding=0 border=0>
<TR><TH></TH><TH>Day</TH><TH>Month</TH><TH>Year
</TH></TR>
<TR>
<TD>Birthdate: </TD>
<TD align=middle><SELECT style="LEFT: -1px; TOP: 0px" name=db> <OPTION
value=0 selected>[Day]<OPTION value=1>1<OPTION value=2>2<OPTION
value=3>3<OPTION value=4>4<OPTION value=5>5<OPTION value=6>6<OPTION
value=7>7<OPTION value=8>8<OPTION value=9>9<OPTION value=10>10<OPTION
value=11>11<OPTION value=12>12<OPTION value=13>13<OPTION
value=14>14<OPTION value=15>15<OPTION value=16>16<OPTION
value=17>17<OPTION value=18>18<OPTION value=19>19<OPTION
value=20>20<OPTION value=21>21<OPTION value=22>22<OPTION
value=23>23<OPTION value=24>24<OPTION value=25>25<OPTION
value=26>26<OPTION value=27>27<OPTION value=28>28<OPTION
value=29>29<OPTION value=30>30<OPTION value=31>31</OPTION></SELECT></TD>
<TD><SELECT size=1 name=mb> <OPTION value=0 selected>[Month]<OPTION
value=1>January<OPTION value=2>February<OPTION value=3>March<OPTION
value=4>April<OPTION value=5>May<OPTION value=6>June<OPTION
value=7>July<OPTION value=8>August<OPTION value=9>September<OPTION
value=10>October<OPTION value=11>November<OPTION
value=12>December</OPTION></SELECT></TD>
<TD align=middle><SELECT name=yb> <OPTION value=0 selected>[Year]<OPTION
value=1920>1920<OPTION value=1921>1921<OPTION value=1922>1922<OPTION
value=1923>1923<OPTION value=1924>1924<OPTION value=1925>1925<OPTION
value=1926>1926<OPTION value=1927>1927<OPTION value=1928>1928<OPTION
value=1929>1929<OPTION value=1930>1930<OPTION value=1931>1931<OPTION
value=1932>1932<OPTION value=1933>1933<OPTION value=1934>1934<OPTION
value=1935>1935<OPTION value=1936>1936<OPTION value=1937>1937<OPTION
value=1938>1938<OPTION value=1939>1939<OPTION value=1940>1940<OPTION
value=1941>1941<OPTION value=1942>1942<OPTION value=1943>1943<OPTION
value=1944>1944<OPTION value=1945>1945<OPTION value=1946>1946<OPTION
value=1947>1947<OPTION value=1948>1948<OPTION value=1949>1949<OPTION
value=1950>1950<OPTION value=1951>1951<OPTION value=1952>1952<OPTION
value=1953>1953<OPTION value=1954>1954<OPTION value=1955>1955<OPTION
value=1956>1956<OPTION value=1957>1957<OPTION value=1958>1958<OPTION
value=1959>1959<OPTION value=1960>1960<OPTION value=1961>1961<OPTION
value=1962>1962<OPTION value=1963>1963<OPTION value=1964>1964<OPTION
value=1965>1965<OPTION value=1966>1966<OPTION value=1967>1967<OPTION
value=1968>1968<OPTION value=1969>1969<OPTION value=1970>1970<OPTION
value=1971>1971<OPTION value=1972>1972<OPTION value=1973>1973<OPTION
value=1974>1974<OPTION value=1975>1975<OPTION value=1976>1976<OPTION
value=1977>1977<OPTION value=1978>1978<OPTION value=1979>1979<OPTION
value=1980>1980<OPTION value=1981>1981<OPTION value=1982>1982<OPTION
value=1983>1983<OPTION value=1984>1984<OPTION value=1985>1985<OPTION
value=1986>1986<OPTION value=1987>1987<OPTION value=1988>1988<OPTION
value=1989>1989<OPTION value=1990>1990<OPTION value=1991>1991<OPTION
value=1992>1992<OPTION value=1993>1993<OPTION value=1994>1994<OPTION
value=1995>1995<OPTION value=1996>1996<OPTION value=1997>1997<OPTION
value=1998>1998<OPTION value=1999>1999</OPTION></SELECT></TD></TR>
<TR>
<TD align=middle colSpan=4>
<P><BR><INPUT id=Enter onclick=CheckAge(this.form) type=button value="Enter Site" name=Enter></P></TD>
</TR>
</TABLE>
</FORM>
</body>
<html>
<head>
<title>ageok.htm</title>
</head>
<SCRIPT LANGUAGE=javascript>
<!--
var pos = document.cookie.indexOf("UnderAge=");
if (pos != false)
{
location = "agecheck.htm";
}
//-->
</SCRIPT>
<body marginwidth="0" marginheight="0" topmargin=0 leftmargin=0 >
<P> </P>
<P> </P>
<P> </P>
<P> </P>
<P> </P>
<P align=center><FONT size=6 color=mediumslateblue><STRONG><U>Congratulations your really are
getting old</U>
</STRONG></FONT></P>
</body>
</html>
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By using this code, you agree to the following terms...
- You may use
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Other User Comments
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 7/5/2001 12:36:03 PM: nukem
kool but i no all my friends would just lie.
(If this comment was disrespectful, please report it.)
| 7/5/2001 1:49:34 PM: Norberto
I know I think the same, but legally I it works, I implemented this into a site that was fined for not having it and the fed’s accepted it.
(If this comment was disrespectful, please report it.)
| 5/17/2006 3:26:40 AM: sameer
VERY GOOD I ENJOYED USING THESE CODES IN MY PROGRAMMES IT HAS ENHANCED MY SKILLS
(If this comment was disrespectful, please report it.)
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