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<HEAD>
<TITLE>
JavaScript DESTINATION - P073
</TITLE>
<SCRIPT LANGUAGE="Javascript">
<!--
function expiryDate()
{
var yearsMonths = "JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC";
var now = new Date();
var nLyear = 1900 + now.getYear();
var nLmonthABR = yearsMonths.substring( now.getMonth() * 3, now.getMonth() * 3 + 3 );
var nLdayOfMonth = now.getDate();
nLdayOfMonth += 1;
if ( nLdayOfMonth > 28 ) nLdayOfMonth = 1;
return '' + nLdayOfMonth + '-' + nLmonthABR + '-' + nLyear + ' GMT';
}
function cookieDoesFileExist()
{
if ( document.cookie ) return true;
else return false;
}
function cookieDoesItExist(cookieName)
{
if ( cookieDoesFileExist() )
if ( document.cookie.indexOf( cookieName + "=" ) != -1 ) return true;
return false;
}
function cookieCreate( cookieName, cookieValue, cookieExpires )
{
var today = new Date();
var nLyear = 3 + today.getYear();
if ( cookieExpires == 'forever' ) cookieExpires = "01-APR-" + nLyear + " GMT"
document.cookie = cookieName + "=" + cookieValue + "; expires=" + cookieExpires;
if( cookieDoesItExist( cookieName ) ) return true;
else return false;
}
function cookieReadValue(cookieName)
{
var countbegin = (document.cookie.indexOf(cookieName+"=") + cookieName.length+1);
var countend = countbegin + document.cookie.substring( countbegin ).indexOf(";");
if ( countend < countbegin ) countend = document.cookie.length;
return document.cookie.substring( countbegin, countend);
}
function cookieDoesItExistIfNotCreate(cookieName,cookieValue,cookieExpires)
{
if ( cookieDoesItExist(cookieName) == false )
return cookieCreate(cookieName,cookieValue,cookieExpires);
return true;
}
function cookieExampleRead()
{
if ( cookieDoesItExist( document.exampleForm.cookieName.value ) )
{
document.exampleForm.cookieValue.value = cookieReadValue( document.exampleForm.cookieName.value );
document.exampleForm.cookieMessage.value = "Cookie bol precitany";
}
else
{
document.exampleForm.cookieValue.value = '';
document.exampleForm.cookieMessage.value = 'Neznamy Cookie';
}
}
function cookieExampleSave()
{
if ( cookieCreate( document.exampleForm.cookieName.value, document.exampleForm.cookieValue.value, expiryDate() ) )
document.exampleForm.cookieMessage.value = 'Cookie bol zapisany';
else document.exampleForm.cookieMessage.value = 'Cookie nebol zapisany';
}
// -->
</SCRIPT>
</HEAD>
<BODY>
<pre>
<FORM NAME="exampleForm">
Nazov Cookie : <INPUT NAME="cookieName" TYPE="Text" SIZE="32">
Hodnota Cookie: <INPUT NAME="cookieValue" TYPE="Text" SIZE="32">
Sprava : <INPUT NAME="cookieMessage" TYPE="Text" SIZE="32">
<INPUT NAME="saveButton" TYPE="button" VALUE="Zapis" onClick="cookieExampleSave()"><INPUT NAME="readButton" TYPE="button" VALUE="Precitaj" onClick="cookieExampleRead()">
</FORM>
</pre>
</BODY>
</HTML>
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